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48results about How to "Improve batch consistency" patented technology
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High-linearity broadband stacking low noise amplifier based on gain compensation technology
ActiveCN107332517AImprove linearity metrics1dB higher compression pointAmplifier modifications to reduce non-linear distortionAmplifier modifications to reduce noise influenceUltra-widebandLow noise
The invention discloses a high-linearity broadband stacking low noise amplifier based on a gain compensation technology. The high-linearity broadband stacking low noise amplifier comprises a two-stacking low noise amplification network, an interstage matching network and a two-stacking gain expansion amplification network which are connected in sequence; and a first power supply bias network and a second power supply bias network which are connected with the two-stacking low noise amplification network and the two-stacking gain expansion amplification network. According to the high-linearity broadband stacking low noise amplifier, a serial stacking structure is realized through adoption of two transistors with different sizes and ultra wide band noise and impedance matching are realized through combination of an RLC feedback network; through utilization of the gain compression compensation technology, the gain compression property of the two-stacking low noise amplification network is cancelled within a certain bias range through the two-stacking gain expansion amplification network and a linearity index of the amplifier is improved, so the whole low noise amplifier has good broadband, linearity, low power consumption and low noise amplification capability; and moreover, the low breakdown voltage property of an integrated circuit technology is avoided and the stability and reliability of a circuit are improved.
Owner:CHENGDU GANIDE TECH
Large size combined optical fibre perform of polarization maintaining fiber and production method thereof
ActiveCN101391861AEasy to moveEvenly heatedGlass making apparatusGlass fibre productsStructural symmetryPolarization-maintaining optical fiber
The invention relates to a polarization maintaining optical fibre large-size composite optical fibre preform and a preparation technological method, and comprises the optical fibre preform with a fibre core and cladding layers; the areas of the cladding layers of the two sides of the fibre core of the optical fibre perform are provided with two holes which run through lengthways and are parallel to the fibre core; the two holes are provided with stress rods so as to form the composite optical fibre preform; the invention is characterized in that the optical fibre preform has the diameter of 30 to 80mm and the length of 200 to 800mm, the diameter range of the two side holes is 12 to 27mm and the diameter range of the stress area of the stress rod is 10 to 25mm. The polarization maintaining optical fibre large-size composite optical fibre preform and the preparation technological method lead the wire-drawing condition to be stable and controllable, and the drawn polarization maintaining optical fibre has excellent mechanical property and can pass the tension screening of 1 percent, even 2 percent; the preform with large diameter and large length is used for producing the polarization maintaining optical fibre; the wire-drawing length of a single preform reaches to be more than 200km, even more than 100km; and the production efficiency of the optical fibre is high. The drawn optical fibre structure has good symmetry and lengthwise uniformity and is easy to control.
Owner:YANGTZE OPTICAL FIBRE & CABLE CO LTD
Method for preparing hard carbon negative electrode materials of lithium ion battery
The invention discloses a method for hard carbon negative electrode materials of a lithium ion battery and belongs to the technical field of hard carbon negative electrode materials of the lithium ion battery. By means of the method, one or several kinds with any proportion of sulfuric acid, sulfate, boric acid, borate, phosphoric acid, phosphate, muriatic acid, muriate and ammonia or ammonium salt is / are chosen as a catalyst / catalysts for preparing the hard carbon negative electrode materials of the lithium ion battery in a catalysis method, and compared with the catalysts used in the prior art, the catalysts used in the preparing process of the materials are reduced in low-temperature section stabilized heat treatment temperature, the time is shortened by nearly 10 times, a large number of resources are saved, production cost is reduced, and capacity is improved.
Owner:DONGFANG ELECTRIC CORP LTD
A rare earth doped optical fiber
ActiveCN107329205AIncrease the laser withstand powerReduce light leakageOptical fibre with multilayer core/claddingActive medium shape and constructionFiberRare earth
The present invention discloses a rare earth doped optical fiber. The optical fiber includes a doped fiber core, a first quartz cladding, a second quartz cladding and an organic coating cladding from the inside to the outside. The second quartz cladding has a numerical aperture of 0.1-0.24 relative to the first quartz cladding; and the organic coating has a numerical aperture greater than or equal to 0.35 relative to the first quartz cladding. The optical fiber greatly reduce light leakage of the organic coating cladding, is higher in the reliability of long-term working and longer in usage life.
Owner:YANGTZE OPTICAL FIBRE & CABLE CO LTD
Automatic accurate adjustment system for instrument movement clearance
The invention discloses an automatic accurate adjustment system for an instrument movement clearance. The automatic accurate adjustment system comprises a work table, a handpiece module, an engine base module, a shifting module, a laser displacement sensor module and a controller. The handpiece module comprises a cutter head and a cutter head drive mechanism; the shifting module comprises a shifting plate and a shifting plate drive mechanism; the laser displacement sensor module comprises a probe, a laser displacement sensor and a probe drive mechanism; the signal output end of the laser displacement sensor is connected with the controller; and the control ends of drive elements in the cutter head drive mechanism, the shifting plate drive mechanism and the probe drive mechanism are connected with the controller. A clearance between a lower bearing and a shaft tip in a measurement mechanism of an electrical measuring instrument to be adjusted is detected by using the shifting plate, the probe and the laser displacement sensor, an adjustment quantity is output by using the controller according to a detection signal, and axial displacement is generated by driving the lower bearing through the cutter head, so that the accurate adjustment of the clearance between the lower bearing and the shaft tip is realized. The automatic accurate adjustment system is short in machining period, low in cost and high in efficiency; and moreover, the batch uniformity and the stability of the accuracy can be improved.
Owner:SHANGHAI COMPLEE INSTR
Control method and system for outlet moisture content of cut tobacco drying procedure
ActiveCN110946313AImprove batch consistencyImprove the quality control ability of the production processTobacco preparationTobacco treatmentProcess engineeringFeedback control
The invention provides a control method and system for the outlet moisture content of a cut tobacco drying procedure, and the method comprises the steps: setting the temperature of a cylinder wall, the temperature of hot air and the moisture removal air volume in the cut tobacco drying procedure according to set parameter values, and setting the target value of the outlet moisture content of the cut tobacco drying procedure; obtaining an actual measurement value of the outlet moisture content of the cut tobacco drying process, and obtaining a target deviation value of the outlet moisture content according to the target value and the actual measurement value; and establishing a PID feedback control model for adjusting the hot air speed according to the target deviation value so as to perform feedback control on the outlet moisture content, so that the outlet moisture content of the outlet material of the cut tobacco drying process in the batch is controlled according to the target value. The batch consistency of the cut tobacco drying outlet moisture content can be improved, and the quality control capacity in the production process is improved.
Owner:CHINA TOBACCO HENAN IND
Hydrogen flame ionization detector and working method thereof
InactiveCN105486784AAvoid the risk of performance degradationThe processing technology is simple and matureComponent separationHydrogenHelium ionization detector
The invention relates to a hydrogen flame ionization detector and working method thereof. The hydrogen flame ionization detector comprises an outer cover, a chromatographic column, a collector, a polarization electrode, a conductive nozzle and a detection circuit. The collector is connected with the detection circuit after being connected with a polarization power source in series. The collector is connected with the negative pole of the polarization power source. The conductive nozzle is a ground potential. According to the hydrogen flame ionization detector, polarization voltage is connected to a signal outgoing line of the collector in series, meanwhile, the traditional polarization electrode and the nozzle are combined into a whole, the ground potential is kept, the normal function of the detector is ensured, and the equipment complexity and production technology are simplified.
Owner:WEIFANG UNIVERSITY
MEMS closed-loop accelerometer based on rigidity compensation
PendingCN109946481AProtects against adverse effects of electrostatic forcesHigh performance featuresTelevision system detailsAcceleration measurement using interia forcesAccelerometerClosed loop
The invention discloses a MEMS closed-loop accelerometer based on rigidity compensation. The MEMS closed-loop accelerometer based on rigidity compensation comprises an upper half part and a lower halfpart which are centrosymmetric along the accelerometer, each of the upper half part and the lower half part comprises a substrate, an anchor point is fixed on each substrate, an insulating layer is arranged on each substrate, each insulating layer is provided with a sensitive device layer, and each sensitive device layer comprises a sensitive mass block, a supporting beam, a force feedback comb tooth unit, a detection comb tooth unit and a rigidity compensation unit; the sensitive mass block of each of the upper half part and the lower half part is provided with a first hollowed-out area anda second hollowed-out area; a supporting beam anchor point, a supporting beam, a detection comb tooth unit anchor point and a detection comb tooth unit are mounted in each first hollowed-out area; a supporting beam anchor point, a supporting beam, a force feedback comb tooth unit, a force feedback comb tooth unit anchor point, a rigidity compensation unit and a rigidity compensation unit anchor point are mounted in each second hollowed-out area; and by the design of a rigidity compensation structure of the accelerometer, the problem of large mechanical rigidity due to processing of a technology can be solved.
Owner:四川知微传感技术有限公司
Dual-frequency antenna, dual-polarized dual-frequency antenna and preparation method of isolation element
ActiveCN105576378AHigh accuracy and batch consistencyImprove accuracySimultaneous aerial operationsPhysicsTransmission line
The invention relates to a dual-frequency antenna comprising a feed unit, a transmission line and a radiation arm unit which are electrically connected in sequence. The radiation arm unit comprises an internal radiation unit including a first and second high frequency radiation arm, an external radiation unit including a first and second low frequency radiation arm, and two isolation elements arranged between the internal and external radiation unit. One end of the internal radiation unit is connected with the transmission line, and the other end of the internal radiation unit is electrically connected with the external radiation unit through the isolation elements. Each isolation element has a parallel double-line structure with one end open-circuited or short-circuited, and two conductors forming the other end of the parallel double-line of the isolation element are respectively connected with a corresponding high frequency radiation arm and low frequency radiation arm. The dual-frequency antenna realizes high accuracy in transmission and batch consistency in production, improves the defects of an existing technical scheme, and has an advantage of small size.
Owner:COMBA TELECOM TECH (GUANGZHOU) CO LTD
Preparation method of poly(p-phenylene benzobisoxazole) fibers
ActiveCN112760737AReduce accumulationReduce decreaseMonocomponent synthetic polymer artificial filamentFiberSpinning
The invention belongs to the field of high-performance fibers, and particularly relates to a preparation method of poly(p-phenylene benzobisoxazole) fibers. The preparation method comprises the following steps of taking frozen polyphosphoric acid powder, phosphorus pentoxide, 4,6-diaminoresorcinol hydrochloride and terephthalic acid as raw materials, putting the phosphorus pentoxide into a reaction system step by step in a reasonable proportion in a proper time period, and detecting and regulating the apparent viscosity of the materials in real time in a prepolymerization process to ensure that a prepolymer with uniform apparent viscosity is obtained; performing post-polymerization to obtain PBO spinning slurry; and performing dry-jet wet spinning and post-spinning to obtain the finished PBO fibers. The method overcomes the defects that traditional solid raw materials are poor in solvent mixing and dispersing effect, easy to agglomerate and incapable of uniformly reacting, ensures the consistency of a prepolymerization reaction end point, and reduces the process errors. The intrinsic viscosity of the polymer in the same batch in different time periods is small in change and high, the mechanical property of the fibers can be obviously improved, and the quality stability is also improved.
Owner:SHANDONG NON METALLIC MATERIAL RES INST
Quality control method and system based on airflow type cut stem drying
PendingCN111165866AImprove batch consistencySolve the problem of uneven moisture content change controlTobacco preparationTobacco treatmentAir velocityQuality control
The invention provides a quality control method and system based on airflow type cut stem drying. The method comprises the steps: acquiring a hot air temperature target value and an outlet moisture content target value in a cut stem drying procedure; establishing a temperature feedback control model of a hot air temperature and a steam valve opening degree, and controlling the steam valve openingdegree according to the temperature feedback control model and the hot air temperature target value so as to control the hot air temperature in a drying machine; acquiring an actual measurement valueof the outlet moisture content of the cut stem drying process, and obtaining a target deviation value of the outlet moisture content according to the target value and the actual measurement value; andestablishing a moisture content PID feedback control model for adjusting the air speed of the hot air according to the target deviation value so as to perform feedback control on the outlet moisturecontent so as to control the outlet moisture content of the outlet material in the cut stem drying process in the batch according to the target value. The batch consistency of the cut stem drying outlet moisture content can be improved, and the quality control capacity in the production process is improved.
Owner:CHINA TOBACCO HENAN IND
Method for preparing instant tea through quantificationally matching
The invention discloses a method for preparing instant tea through quantificationally matching, which is characterized in that: after a variety of tealeaf ingredient enrichments are obtained by separating and extracting tealeaf raw materials, tealeaves of a target variety are selected as samples, the samples are extracted according to the same separation and extraction technique to determine the content ratio of each ingredient in the sample tealeaves, and the tealeaf ingredient enrichments are matched according to the content ratio, so the instant tea having the characteristics correspondingto that of the target variety. The instant tea with different flavors can be matched and prepared through the method, and the quality and the sensory evaluation of the instant tea can be remarkably improved, so the quality of the prepared instant tea is united, and the problem that the quality is different can be solved.
Owner:GUANGDONG AUTHENTEA BIOTECH INC
Rare earth doped optical fiber preformed rod and preparation method thereof
ActiveCN107500524AImprove wire diameter fluctuationEasy to controlGlass making apparatusGlass fibre productsRare earthWork in process
The invention discloses a doped optical fiber preformed rod and a preparation method thereof. The preformed rod comprises a doped core layer, a first quartz cladding layer and a second quartz cladding layer from inside to out; the numerical aperture of the second quartz cladding layer relative to the first quartz cladding layer ranges from 0.1 to 0.24; the section of the second quartz cladding layer is round. The doped optical fiber preformed rod is prepared according to the following method: (1) wrapping the doped core layer with the first quartz cladding layer material, stretching until the section area ratio is matched with the section area ratio of the second quartz cladding layer, and processing the section into predetermined appearance to obtain a preformed rod semi-finished product; (2) wrapping the preformed rod semi-finished product with the second quartz cladding layer material and processing the section into round to obtain the doped optical fiber preformed rod. The optical fiber preformed rod provided by the invention facilitates wire-drawing forming and pump light leakage is greatly reduced; according to the preparation method, the geometric concentricity of the preformed rod can be guaranteed and the consistency of the optical fiber production batches is improved.
Owner:YANGTZE OPTICAL FIBRE & CABLE CO LTD
Processing device and method for high-precision inductor
ActiveCN105355407AImprove batch consistencyPrecise control of inductanceTransformersInductancesMagnetic coreInductor
The invention discloses a processing device and method for a high-precision inductor. The method comprises the following steps: 1, winding a copper coil (1); 2, assembling the copper coil well wound in the step 1 with casings (2); 3, winding a magnetic core in the casings (2). Winding of a magnetic strip is controlled through a rotatable part in the casings (2), so that the rotatable part is matched with inductance measurement equipment, connected with the copper coil (1), to measure the inductance value, when the inductance value meets the requirement, the rotatable part is stopped, and production of the inductor is finished. Electrical parameters of the inductor have high consistency, meanwhile, use of an inductor with a large wire diameter is not dependent on manual operation any more, and the production efficiency and the product quality are improved greatly.
Owner:贵阳顺络迅达电子有限公司
Tool for preparing composite material test sample piece and preparation method of test sample piece
ActiveCN113188869AImprove batch consistencyImprove production efficiencyPreparing sample for investigationComposite structureTest sample
According to the tool for preparing the composite material test sample piece and the preparation method of the test sample piece, the special tool is designed to fix a three-interlayer composite structure sample material blank composed of a reinforcing plate, a limiting plate and a to-be-tested composite material plate, and it is ensured that the reinforcing plate and the to-be-tested composite material plate do not have relative displacement in the cementing and curing process; the bonding reliability is improved by adopting a high-temperature-resistant epoxy glue bonding and curing method, and then test samples with corresponding sizes are obtained by machining and cutting according to size requirements. The tool is adopted to assist high-temperature-resistant epoxy glue to perform in-situ cementing of the reinforcing plate / to-be-tested composite plate, then the composite material test sample piece is prepared by a machining method, it is ensured that no relative displacement exists in the resin glue curing process, the batch consistency of the sample piece is improved, the reinforcing plate is reliably cemented, The tool can effectively solve the problem of test failure caused by debonding and abnormal damage of the reinforcing sheet when a sample prepared by a conventional method is tested under harsh environmental conditions such as high temperature and damp heat, and meanwhile, the preparation efficiency of the sample is greatly improved.
Owner:NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
Line voltage detection circuit for switching power supply
ActiveCN104569548ASuit one's needsHigh accuracy consistencyCurrent/voltage measurementElectrical resistance and conductanceVoltage regulator module
A line voltage detection circuit for a switching power supply comprises a line voltage input end used for inputting a line voltage, an input resistor, a voltage regulator module and a current sampling module, wherein the input resistor, the voltage regulator module and the current sampling module are connected in sequence; one end of the input resistor is connected with the line voltage input end, and the other end of the input resistor is connected with the voltage regulator module; the voltage regulator module comprises a first output end used for outputting a regulating voltage, a second output end used for outputting a regulating current, and an input end used for outputting a reference voltage, and the voltage regulator module controls the regulating voltage and outputs the regulating current to the current sampling module; an input end of the current sampling module is connected with the second output end of the voltage regulator module and used for receiving the regulating voltage, and an output end of the voltage regulator module is used for outputting a detection current proportional to the regulating current. By means of the line voltage detection circuit for the switching power supply, the ratio of a detection output value and a line voltage input value can be set according to a resistance value inputted to the resistor.
Owner:SHANGHAI BEILING
Standard quantitative-matching instant green tea and preparation method thereof
The invention discloses standard quantitative-matching instant green tea and a preparation method thereof. The instant green tea comprises 62 to 68 percent of tea polyphenol enrichment, 5 to 7 percent of caffeine enrichment, 22 to 26 percent of tea polysaccharide enrichment and 10 to 15 percent of other beneficial ingredients. By determining the quantity of beneficial ingredients in excellent green tea after the beneficial ingredients are separated and extracted, the proportional situation of ingredients in the excellent green tea can be obtained, and then an ordinary tealeaf raw material is separated and extracted according to the same way and is quantificationally matched according to the proportion so as to obtain the instant green tea having similar characteristics to the excellent green tea. Through the method, the ordinary green tealeaves can be prepared into the instant green tea having characteristics which are similar to that of the excellent green tea through a quantitative matching way, so the production cost can be reduced, and a high economic and practical value can be realized. The instant green tea has the advantages of standardization, fixed ingredients, low residue of heavy metal and farm chemicals and the like. The preparation method of the instant green tea is easy to realize the industrialized mass production.
Owner:贵州中科分子生物有限公司
Zero position correction-based MEMS accelerometer
PendingCN110095632APrevent collapseImprove impact resistanceAcceleration measurement using interia forcesAccelerometerClosed loop feedback
The invention discloses a zero position correction-based MEMS accelerometer. The zero position correction-based MEMS accelerometer comprises a substrate; an oxide layer is arranged on the substrate; aplurality of anchor points are fixed on the substrate through an oxide layer; a sensitive device layer is arranged on the oxide layer; the sensitive device layer comprises a differential capacitancedetection structure, an accelerometer closed-loop feedback electrode structure, a plurality of cantilever beams, a zero position correction structure, a sensitive mass block, two stopping structures and two fixing structures; the structure of the accelerometer is properly designed, so that the problem of the inconsistency of the change of the zero position output of the structure of the accelerometer caused by machining error, installation error, environment temperature and the like can be solved, and the influence of zero position change on performance such as device stability, temperature characteristics and the like is eliminated.
Owner:四川知微传感技术有限公司
Sensing unit based on ceramic co-firing process, electrochemical gas sensor comprising sensing unit and manufacturing method of sensing unit
InactiveCN109557151AImplement injectionSimple structureMaterial electrochemical variablesElectrolytic agentElectrochemical gas sensor
The invention discloses a sensing unit based on a ceramic co-firing process, an electrochemical gas sensor comprising the sensing unit and a manufacturing method of the sensing unit, relates to the field of electrochemical gas sensors, and is used for solving the problem that a conventional method for manufacturing an electrochemical gas sensor is difficult. A sensing unit based on the ceramic co-firing process comprises a working electrode layer, an electrolytic cell layer, an auxiliary electrode layer and an extraction layer which are sequentially stacked from top to bottom. A first electrolytic cell through hole and a second electrolytic cell through hole constitute an electrolytic cell cavity. A catalytic electrode is electrically connected to a conductive metal of the first through hole. A counter electrode is electrically connected to the conductive metal of a third through hole. The conductive metal of the first through hole, the second through hole and a fourth through hole areelectrically connected. A first leading-out terminal is electrically connected to the conductive metal of the fourth through hole. The second leading-out terminal is electrically connected to the conductive metal of the third through hole. According to the sensing unit based on the ceramic co-firing process, the electrochemical gas sensor comprising the sensing unit, and the manufacturing methodof the sensing unit, different kinds of gas detection are realized by injecting different types of electrolytes, different catalytic electrode materials.
Owner:NO 49 INST CHINESE ELECTRONICS SCI & TECH GRP
Lock pipe fully-automatic numerical control machining equipment
InactiveCN109500608AImprove work efficiencyIncrease productivityOther manufacturing equipments/toolsNumerical controlBall screw
The invention discloses lock pipe fully-automatic numerical control machining equipment. The lock pipe fully-automatic numerical control machining equipment comprises a rack and a control cabinet, andis characterized in that a sliding rail is arranged in the middle of the top of the rack; a ball screw nut pair is fixed into a top sliding groove of the sliding rail; a sliding block is connected tonuts of the ball screw nut pair; a left air cylinder fixing support is arranged at the top of the sliding block; a lock pipe left end machining cutter and a left air cylinder are arranged at the topof the left air cylinder fixing support; an outer side air cylinder fixing support is fixed to one side of the left air cylinder; an outer side air cylinder is fixed to the side, away from the left air cylinder, of the outer side air cylinder fixing support; a right air cylinder fixing support and a motor are arranged on the other side of the top of the rack in a front-rear side-by-side mode; andthe side, close to the right air cylinder fixing support, of the motor is connected with a rotary disc, and a bending mechanism is arranged on one side of the rotary disc. The lock pipe fully-automatic numerical control machining equipment is reasonable in design layout, easy to operate, capable of achieving automatic production, high in efficiency and worth popularizing.
Owner:赵国良
Radiation unit and array antenna
InactiveCN110416721ALower the altitudeReduce weightAntenna supports/mountingsRadiating elements structural formsDielectric substratePhysics
The invention relates to the technical field of wireless communication base station antennas, and provides a radiation unit and an array antenna. The radiation unit includes a first dielectric substrate and a second dielectric substrate. A first support column is arranged between the two dielectric substrates. The lower surface of the second dielectric substrate is connected with a second supportcolumn. A guide sheet is attached to the upper surface of the first dielectric substrate, and a radiation sheet is attached to the upper surface of the second dielectric substrate. Feeding circuits are arranged on the lower surface of the second dielectric substrate, and the feeding circuits extend along the second support column to a welding part connected with the second support column. The first dielectric substrate, the first support column, the second dielectric substrate, the second support column and the welding part are integrally formed. The integrally formed radiation unit in the form of a double-layer micro-strip patch has a height of less than 0.18lambda and good low profile characteristic. The height and weight of the radiation unit are reduced, and the reliability and batch consistency of the radiation unit are improved. The radiation unit is suitable for large-scale manufacturing and has an excellent lightweight effect.
Owner:WUHAN HONGXIN TELECOMM TECH CO LTD
A method of extracting volatile oil active components from zedoray rhizome and applications of the active components
PendingCN105688026AReduce consumptionHigh purityAntineoplastic agentsPlant ingredientsChromatographic separationRotary evaporator
A method of extracting volatile oil active components from zedoray rhizome is provided. The method includes subjecting zedoray rhizome dry tubers which are adopted as raw materials to ultrafine grinding, stirring and extracting with ethyl acetate, filtering to obtain a supernatant liquid, concentrating and drying in a rotary evaporator to obtain a crude extract product, dissolving the crude extract product into an n-hexane-ethanol binary solvent system, and separating through high performance preparative liquid chromatography by adopting a normal-phase silica gel axially-pressurized chromatographic column, wherein a binary mobile phase adopting n-hexane as an A phase and adopting methanol as a B phase is adopted, gradient elution is performed for 30 min with the concentration of the ethanol that is the B phase changing from 0 to 50%, eluate from the 15.5 min to the 17 min is collected according to an ultraviolet absorption spectrum, adopted as target components, and subjected to rotary evaporation until a product is dry, and the product is the target volatile oil active components. The method adopts the zedoray rhizome dry tubers as the raw materials, and is high in extracting efficiency, rapid and simple in preparing process and capable of popularization and large-scale production. The obtained volatile oil active components can be used for preparing anti-liver-cancer medicines.
Owner:TIANJIN YAOYU BIOLOGICAL TECH
A high-precision inductor processing device and method
ActiveCN105355407BGuaranteed batch consistencyImprove batch consistencyTransformersInductancesInductorEngineering
The invention discloses a processing device and method for a high-precision inductor. The method comprises the following steps: 1, winding a copper coil (1); 2, assembling the copper coil well wound in the step 1 with casings (2); 3, winding a magnetic core in the casings (2). Winding of a magnetic strip is controlled through a rotatable part in the casings (2), so that the rotatable part is matched with inductance measurement equipment, connected with the copper coil (1), to measure the inductance value, when the inductance value meets the requirement, the rotatable part is stopped, and production of the inductor is finished. Electrical parameters of the inductor have high consistency, meanwhile, use of an inductor with a large wire diameter is not dependent on manual operation any more, and the production efficiency and the product quality are improved greatly.
Owner:贵阳顺络迅达电子有限公司
Extraction method and application of genistein monomer compound in armillaria chrysogreen
ActiveCN105601603BImprove stabilityImprove biological activityOrganic chemistryAntineoplastic agentsChromatographic separationEvaporation
The invention provides an extraction method of a genistein monomer compound in Armillarialuteo-virens. The method includes: taking an Armillarialuteo-virens fruit body as the raw material, grinding the raw material into powder, then conducting extraction with ethyl acetate, and carrying out concentration into paste; conducting dissolving with a n-hexane-ethanol solvent; conducting one-dimensional liquid chromatography separation: employing a Silica chromatographic column, adopting a binary mobile phase with n-hexane as the phase A and ethanol as the phase B, performing gradient elution with phase B at a concentration ranging from 0% to 75%, and collecting the 26-29min eluent; performing dissolving with an ethanol-n-hexane solvent; carrying out two-dimensional liquid chromatography separation: adopting a Silica chromatographic column, employing a binary mobile phase with n-hexane as the phase A and ethanol as the phase B, performing isocratic elution with phase B at a concentration of 2%, collecting the 8-11min eluent, and performing evaporation concentration to obtain genistein. The separation method has the advantages of stability, high repeatability, large preparation capacity, simple operation and time saving, low cost, and high genistein extraction rate. The target object has an inhibiting effect on lung cancer A549 cells and liver cancer Hep-G2 cells, and has anticancer drug development potential.
Owner:TIANJIN YAOYU BIOLOGICAL TECH
A method and system for controlling outlet moisture content of shredded leaves drying process
ActiveCN110946313BImprove batch consistencyImprove the quality control ability of the production processTobacco preparationTobacco treatmentAir volumeProcess engineering
The invention provides a method and system for controlling the moisture content of the outlet of the shredded leaves drying process. The method includes: setting the temperature of the cylinder wall, the temperature of the hot air and the air volume of the tidal discharge in the shredded leaves drying process according to the set parameter values, and setting the drying temperature of the shredded leaves. The target value of the outlet moisture content of the process; obtain the measured value of the outlet moisture content of the leaf shred drying process, and obtain the target deviation value of the outlet moisture content according to the target value and the measured value; establish a PID feedback control model for The hot air velocity is adjusted according to the target deviation value to perform feedback control on the outlet moisture content, so that the outlet moisture content of the outlet material in the leaf shred drying process within the batch is controlled according to the target value. The invention can improve the batch consistency of the moisture content in the drying outlet of the shredded leaves, and improve the quality control ability of the production process.
Owner:CHINA TOBACCO HENAN IND
Automatic accurate adjustment system for instrument movement clearance
ActiveCN102689171BFor fine tuningReduce mistakesMetal working apparatusAxial displacementElectricity
Owner:SHANGHAI COMPLEE INSTR
Method for extracting ergosterol from Armillaria chrysanthemum and its application
ActiveCN105693804BHigh purityReduce consumptionOrganic active ingredientsSteroidsEvaporationSilica gel
A method of extracting ergosterol from armillaria luteo-virens is provided. The method includes subjecting a fruiting body of the armillaria luteo-virens to superfine grinding, adding acetone, performing cold leaching, extracting, filtering to obtain a supernatant liquid, subjecting the supernatant liquid to vacuum concentration, dissolving, and separating through a Silica normal-phase silica gel chromatographic column, wherein a binary mobile phase adopting n-hexane as an A phase and ethyl acetate as a B phase is utilized, elution is performed according to a manner that the mobile phase in which the concentration of the A phase is 100% is adopted from 0 to 15 min, the mobile phase in which the concentration of the A phase is 60% is adopted from the 15 min to 35 min and the mobile phase in which the concentration of the B phase is 100% is adopted from the 35 min to 60 min, eluate from the 25 min to the 29 min is collected, subjected to vacuum concentration, dissolved and separated through the Silica normal-phase silica gel chromatographic column adopting the ternary mobile phase comprising the n-hexane as the A phase and the ethyl acetate as the B phase, elution is performed for 0-45 min with the concentration of the A phase being 88%, and eluate from the 27.5 min to the 36 min is collected and subjected to rotary evaporation to obtain the ergosterol the purity of which is 95% or above. The method is stable in separation, high in repeatability and high in preparation amount. The prepared ergosterol can be used for preparing anti-liver-cancer medicines.
Owner:TIANJIN YAOYU BIOLOGICAL TECH
Automatic debugging system for radio frequency module
InactiveCN102237883AIncrease productivityImprove batch consistencyProgramme controlComputer controlMicrocontrollerUltrasound attenuation
The invention relates to an automatic debugging system for a radio frequency module. The automatic debugging system comprises the radio frequency module, a monitoring circuit and an RS485 bus, wherein the radio frequency module is connected with the monitoring circuit by the RS485 bus, and comprises a power amplifier, a numerically controlled attenuator, an analogue attenuation circuit, an automatic gain control (AGC) circuit and an output power sampling circuit; the monitoring circuit comprises a singlechip, an RS485 converter, an analogue-to-digital converter and a digital-to-analogue converter; the power amplifier, the numerically controlled attenuator, the analogue attenuation circuit, the AGC circuit and the output power sampling circuit are connected in turn; and the singlechip is connected with the AGC circuit and the output power sampling circuit by the analogue-to-digital converter respectively, and is connected with the analogue attenuation circuit and the AGC circuit by the digital-to-analogue converter respectively. Compared with the prior art, the automatic debugging system has the advantages of calibration automation, high production efficiency and the like.
Owner:JIALV COMM EQUIP SHANGHAI
An open, arrayed, integrated electrochemical gas sensor and its manufacturing method
InactiveCN107389756BHigh sensitivityHigh selectivityMaterial electrochemical variablesElectrochemical gas sensorEngineering
The invention provides an open-type, array-form and integrated electrochemical gas sensor and a manufacturing method thereof and relates to an electrochemical gas sensor. According to the electrochemical gas sensor and the manufacturing method, the problems that an electrochemical gas sensor is low in sensitivity and poor in selectivity, and the array form and the integration are difficult to realize are solved. The electrochemical gas sensor provided by the invention comprises an upper electrode layer, an electrolytic tank layer, a lower electrode layer and a lead-out layer which are sequentially subjected to counterpoint lamination, wherein a catalytic electrode of the upper electrode layer covers a first electrolytic tank through hole in a semi-closed manner, and a second electrolytic tank through hole is formed in a substrate of the electrolytic tank layer; the first electrolytic tank through hole is communicated with the second electrolytic tank through hole to form an electrolytic tank cavity, and a counter electrode is arranged on a substrate of the lower electrode layer; and the counter electrode is located right below the electrolytic tank cavity, and a plurality of lead-out ends are arranged on a substrate of the lead-out layer. The electrochemical gas sensor provided by the invention is suitable for simultaneously detecting the concentrations of multiple target gases.
Owner:NO 49 INST CHINESE ELECTRONICS SCI & TECH GRP
Extraction method and application of genistein monomer compound in Armillarialuteo-virens
ActiveCN105601603AEasy to separateGood repeatabilityOrganic chemistryAntineoplastic agentsChromatographic separationEvaporation
The invention provides an extraction method of a genistein monomer compound in Armillarialuteo-virens. The method includes: taking an Armillarialuteo-virens fruit body as the raw material, grinding the raw material into powder, then conducting extraction with ethyl acetate, and carrying out concentration into paste; conducting dissolving with a n-hexane-ethanol solvent; conducting one-dimensional liquid chromatography separation: employing a Silica chromatographic column, adopting a binary mobile phase with n-hexane as the phase A and ethanol as the phase B, performing gradient elution with phase B at a concentration ranging from 0% to 75%, and collecting the 26-29min eluent; performing dissolving with an ethanol-n-hexane solvent; carrying out two-dimensional liquid chromatography separation: adopting a Silica chromatographic column, employing a binary mobile phase with n-hexane as the phase A and ethanol as the phase B, performing isocratic elution with phase B at a concentration of 2%, collecting the 8-11min eluent, and performing evaporation concentration to obtain genistein. The separation method has the advantages of stability, high repeatability, large preparation capacity, simple operation and time saving, low cost, and high genistein extraction rate. The target object has an inhibiting effect on lung cancer A549 cells and liver cancer Hep-G2 cells, and has anticancer drug development potential.
Owner:TIANJIN YAOYU BIOLOGICAL TECH
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