253results about How to "Even detection" patented technology

The present invention provides reaction mixtures that include blocked oligonucleotides comprising 2′-terminator nucleotides. The blocked oligonucleotides are rendered extendible when the 2′-terminator nucleotides are removed from the oligonucleotides, e.g., via pyrophosphorolysis. The reaction mixtures can be used in various nucleic acid polymerization and / or amplification assays, among many other applications. In addition to reaction mixtures, the invention also provides related methods and reaction mixtures.

A roll paper printer comprising a roll paper storage unit having a bottom surface on which a roll paper is held and rolls, an operable cover unit for opening and closing a roll paper loading opening to the roll paper storage unit, a roll paper size detection mechanism comprising a detection lever that can move in a direction protruding into the roll paper storage unit and a direction retracting from the roll paper storage unit, and an urging member for urging the detection lever in the protruding direction, wherein the detection lever separates from the roll paper and is pushed in the protruding direction when an outside diameter of the roll paper stored in the roll paper storage unit decreases to a predetermined size or less, and a detection lever retraction mechanism for moving the detection lever protruding into the roll paper storage unit in the retracting direction against the urging force of the urging member in conjunction with the operable cover unit opening.

A coordinate-capturing apparatus suitable for inputting handwritten characters or diagrams to a computer or a printer is disclosed. The apparatus includes an ultrasonic transmitter mounted on an input pen for transmitting ultrasonic waves, two ultrasonic receivers for receiving ultrasonic waves transmitted form the ultrasonic transmitter, and a distance calculating device for calculating distances between the input pen and the two ultrasonic receivers in order to determine coordinates representing a position of the input pen on the basis of the calculated distances. The apparatus of the invention can perform coordinate detection smoothly even when the input pen moves fast, and has reduced electric power consumption in the input pen to increase the life-span of a battery included in the input pen.

An irradiation pattern of a laser beam within a target region is controlled based on external signals each related to a driving direction and a driving speed, a result obtained by detection of an obstacle, and signals related to distances to the obstacle. For example, at the time of a right turn, an irradiation pattern for increasing irradiation frequency on a portion shifted in a right-turn direction from a center axis in a driving direction is set. At the time of high-speed driving, an irradiation pattern for increasing irradiation frequency on a center portion of a forward region in the driving direction is set. When the obstacle is detected and a distance to the obstacle is shorter than a threshold distance, an irradiation pattern for increasing irradiation frequency in the vicinity of the obstacle is set. Detection of the obstacle and monitoring of a state thereof are adequately and smoothly performed at the time of changing of the driving direction, the time of high-speed driving, and the time of detection of the obstacle.

The invention provides a portable device for detecting flaws of a straight pipe and a bent pipe of high pressure manifold. The portable device comprises a first detection semi-ring, the side wall of the first detection semi-ring is uniformly provided with multiple first radial through-holes along the circumferential direction, a first pushing mechanism having the elastic expansion function is arranged at the first radial through-holes, the inner end of the first pushing mechanism stretches out of the inner side of the first detection semi-ring and then is connected to a first sensor box, and a first metal magnetic memory detection sensor is arranged on the first sensor box; the portable device also comprises a second detection semi-ring, the side wall of the second detection semi-ring is uniformly provided with multiple second radial through-holes along the circumferential direction, a second pushing mechanism having the elastic expansion function is arranged at the second radial through-holes, the inner end of the second pushing mechanism stretches out of the inner side of the second detection semi-ring and then is connected to a second sensor box, and a second metal magnetic memory detection sensor is arranged on the second sensor box; and first ends of the first detection semi-ring and the second detection semi-ring are oppositely hinged by a hinge mechanism and second ends of the first detection semi-ring and the second detection semi-ring are separably connected by a self-locking mechanism so that a ring structure is formed.

The present invention provides reaction mixtures that include blocked oligonucleotides comprising 2′-terminator nucleotides. The blocked oligonucleotides are rendered extendible when the 2′-terminator nucleotides are removed from the oligonucleotides, e.g., via pyrophosphorolysis. The reaction mixtures can be used in various nucleic acid polymerization and / or amplification assays, among many other applications. In addition to reaction mixtures, the invention also provides related methods and reaction mixtures.

A light refracting element formed in parallel plate shape is attached to a support shaft of a mirror holder, a semiconductor laser and a PSD are disposed at positions between which the light refracting element is sandwiched. The light refracting element is rotated by rotation of the mirror holder, and whereby a laser beam irradiation position is changed on a light acceptance surface of PSD. The laser beam irradiation position on a light acceptance surface corresponds to the mirror rotation position, so that the mirror rotation position and a laser beam scanning position in a target area can be detected based on an output from the PSD.

A roll paper printer comprising a roll paper storage unit having a bottom surface on which a roll paper is held and rolls, an operable cover unit for opening and closing a roll paper loading opening to the roll paper storage unit, a roll paper size detection mechanism comprising a detection lever that can move in a direction protruding into the roll paper storage unit and a direction retracting from the roll paper storage unit, and an urging member for urging the detection lever in the protruding direction, wherein the detection lever separates from the roll paper and is pushed in the protruding direction when an outside diameter of the roll paper stored in the roll paper storage unit decreases to a predetermined size or less, and a detection lever retraction mechanism for moving the detection lever protruding into the roll paper storage unit in the retracting direction against the urging force of the urging member in conjunction with the operable cover unit opening.

The invention discloses an indexing and subcontracting mechanism for standard fastener detection. An indexing turntable is arranged above a machine table (5), and a first CCD camera is arranged above the edge of the indexing turntable ( 6), the second CCD camera (7) and the third CCD camera (8) are set next to the indexing turntable, and there is an anti-falling baffle (9) around the periphery of the indexing turntable. A slideway (10) is also provided next to it, and the outlet end of the slideway (10) is bifurcated to form a first distribution channel (10a) and a second distribution channel (10b). There is a first parts box (16), and a parts wrapper (17) with a counter is arranged beside the first parts box (16). The invention can be used to detect various standard fasteners, and can automatically sort and pack parts by category through a sorting and packaging mechanism while preventing the standard fasteners from falling off.

The invention discloses an automatic capacitance detector. The automatic capacitance detector comprises a feeding mechanism comprising a feeding component and a distributing component which are in butt joint, wherein the distributing component can convey the capacitors conveyed by the feeding component to a first detection mechanism one by one; the first detection mechanism comprising a rotary table component which is provided with a plurality of jig shafts capable of absorbing the capacitors and performing autogiration, wherein the rotary table component can drive the jig shafts to be sequentially butted joint with the distributing component, and a center positioning component, a welding leg positioning detection component, a rotation detection component, a defective product removing component and a material moving component which are sequentially arranged around the rotary table component; and a re-inspection mechanism comprising a glass disc component, and a first radial positioning component, a second radial positioning component, a downward inspection component, an upward inspection component, a plurality of side inspection components, a plurality of first downward inspection components, a first defective product removing components and a blanking components which are sequentially arranged around the glass disc component.

A detecting device includes: multiple sensors composed with a plurality of sensor circuits arrayed on a plane, each of which generates at least one detected signal that corresponds to a distance from a surface of an object; a selector circuit which selects each of the sensor circuits and outputs the detected signal from each of the sensor circuits; a storage which stores digital data of a reference value; a digital-to-analog converter circuit which generates a reference signal that corresponds to a level of the reference value from the digital data stored in the storage; a generation circuit which generates, per each of the sensor circuits, in sequence, detected data according to a relationship of levels between the detected signal output from each of the sensor circuits selected by the selector circuit, and the reference signal generated by the digital-to-analog converter circuit; an arithmetic circuit which conducts a prescribed operation with a plurality of detected data sets generated by the generation circuit; a refresh circuit which refreshes the digital data stored in the storage, based on an operational value calculated by the arithmetic circuit; and an output circuit which conducts an output process, corresponding to the detected data generated by the generation circuit.

The invention relates to a visual detection system for connecting rod forgings, which includes a camera, a server, a conveyor belt for transmitting connecting rod forgings, a detection platform, a detection feeding device, and a detection and return device; the detection feed device and the detection and return device are respectively arranged On both sides of the conveyor belt; the detection and return device is arranged on the detection platform; the camera is arranged on the detection platform; the input end of the server is connected to the camera; the output end of the server is connected to the detection feeding device and the detection and return device. The beneficial effects of the present invention are: (1) the detection result is reliable and stable; (2) the detection speed is fast, and it can be detected for a long time, which can reach 24 hours a day; (3) the detection accuracy is high, and it is easy to find that the contrast ratio is low Too obvious a flaw.

The invention provides an integrated pulse eddy current sensing infrared thermal imaging detection apparatus and a detection method thereof. The integrated pulse eddy current sensing infrared thermal imaging detection apparatus comprises an electromagnetic induction actuator for generating an alternating magnetic field, an infrared thermal imager and an embedded industrial control plate, wherein one end of the actuator coil of the electromagnetic induction actuator is connected to the embedded industrial control plate, the other end is aligned with the crack defect on a specimen, the infrared thermal imager is connected to the embedded industrial control plate, and the infrared thermal imager collects the infrared image of the specimen and transmits the image to the embedded industrial control plate. According to the present invention, the pulse eddy current sensor is used as the excitation source, and the excitation of the infrared thermal imaging detection and the collection device are integrated, such that the structure design is compact and reasonable, the single-hand operation can be achieved, and the field practicability is strong; the synchronization of the infrared image acquisition and the actuator excitation is achieved by the industrial control tablet PC, such that the operation of the apparatus is simple and convenient; and the infrared detection method provided by the embodiments can achieve the simple and rapid detection of various defects.

The invention relates to measurement of peroxide values, and in particular relates to an edible oil peroxide value measurement combined reagent and a detection method. The edible oil peroxide value measurement combined reagent comprises a polarity organic solvent, a reducing agent, a color development reagent and a color development stabilizing agent, wherein the polarity organic solvent comprises ethanol with the mass concentration of 237-710 g / L in percentage by mass; the reducing agent comprises ferrous sulfate with the mass concentration of 1-20 g / L in percentage by weight; the color development reagent is a sulfosalicylic acid solution with the mass concentration of 300-1,000 g / L; and the color development stabilizing agent is a pyridoxamine dihydrochloride solution with the mass concentration of 20-800 g / L. By a colorimetric analysis method, the operation is quick and simple, and interference caused by heating on a detection result is reduced; the types of the needed detection reagents is few, and the reagents are convenient to combine and carry; and the edible oil peroxide value measurement combined reagent can develop and detect a plurality of oil samples at the same time, is uniform in developing, is low in toxicity and even non-toxic, and is safe and environmentally-friendly.

The invention discloses a handrail strap speed measuring device of an escalator or a moving pavement, wherein a supporting plate is rotatablely arranged on a fixed bottom plate; a non-metal speed measuring wheel is arranged on an end part of the supporting plate; an elastic member is arranged between the other end part of the supporting plate and the fixed bottom plate; thus, when the speed measuring wheel operates on a tight side of the handrail strap, the speed measuring wheel is stressed by pressure of the handrail strap on the tight side to rotate downwards on the supporting plate and is prevented from being easily damaged due to overlarge stressing, and meanwhile, the handrail strap of the tight side is tightly pressed on a circumferential surface of the speed measuring wheel by means of elastic acting force of the elastic member; when the speed measuring wheel operates on a loose side of the handrail strap, the stressing of the speed measuring wheel is weakened, the speed measuring wheel rotates upwards on the supporting plate so that the handrail strap on the loose side can also be tightly pressed on the circumferential surface of the speed measuring wheel under the action of elastic restoring force of the elastic member, the height can be automatically adjusted by the speed measuring wheel according to an operation track of the handrail strap, and frictional operation of the handrail strap is guaranteed all the time to guarantee that a probe smoothly detects a signal and the escalator or the moving pavement can normally work; and the stress of the speed measuring wheel is not overlarge and the speed measuring wheel is not easily damaged.

A shelving system including a plurality of movable shelves (1) installed for back-and-forth movement on a travel path through a travel support device, thereby to handle articles with respect to the movable shelves (1) opposed to a working aisle (S) by using the working aisle (S) opened between the movable shelves (1). Each movable shelf (1) includes a pair of movement detectors (19) disposed in a left-right direction (B) perpendicular to the travel direction (A) of the movable shelves (1). Absolute coordinates of each movement detector (19) are found based on detection signals from the pair of movement detectors (19) of each movable shelve (1). The amount of left-right directional deviation from the travel path (i) of the movable shelves (1) is corrected based on the amount of deviation of the absolute coordinates in the left-right direction (B). Further, the attitude of the movable shelves (1) is corrected to be perpendicular to the travel direction (A) based on positional deviation of the absolute coordinates in the travel direction (A), i.e. traveled distance deviation.

The invention provides an intelligent spray nozzle based on gas inspection. Compared with conventional spray nozzles, a detection control apparatus, a sliding switch apparatus and an opening / closing apparatus and the like devices are added, and an air outlet hole is formed in the side part of the spray nozzle, so that when a glass sphere is expanded, a sealing pad is pulled and drives the sliding switch apparatus, which then slides down to cover the air outlet hole, and water flow is sprayed smoothly during spraying. When gas inspection is required, the sliding switch apparatus keeps the air outlet hole opened, so that the air inspection is successfully carried out. The intelligent spray nozzle achieves intelligent switching between spraying and gas, is low in detection cost and work load, can be started at any time and has no demand and influence on work environment.

The invention relates to a marine infrared target detection method based on a visual attention mechanism. The method, for marine infrared image features, introduces a target detection algorithm basedon the visual attention mechanism, and determines the position of a target in the image by calculating a salience value of each pixel. The method is characterized by, to begin with, extracting an infrared image boundary as a background pixel; then, iteratively updating maximum and minimum pixel values in all paths from a background point to pixel points through a raster scanning algorithm to obtain auxiliary graphs; next, calculating path cost according to the auxiliary graphs to obtain a saliency graph; serving Mahalanobis distance as an image boundary contract image and adding the contract image and the saliency graph obtained in the last step; and then, obtaining the target region position through morphological close operation and binarization operation. The method obtains target saliency information according to the pixel features, thereby greatly reducing marine small target missed detection probability; and the method can effectively suppress noise caused by sea level ripples andsky cloud layers, can highlight the target uniformly and has higher detection accuracy.

A DSP control circuit monitors a scan position of laser beams on the target region based on a signal from a PSD. Further, the DSP control circuit measures an amount of laser beams reflected from the target region for each scan position based on a signal from a beam receiving portion. The DSP control circuit compares an amount of reflected beams P0 at a scan position (reference position) on the target region with an amount of reflected beams Pk at a scan position adjacent to the scan position. If Pk / P0 is equal to or smaller than a threshold value Rs, it is determined that the scan position corresponding to the amount of reflected beams Pk is nonuniform in irradiation intensity of the laser beams. The DSP control circuit increases emission intensity plurality of times for the position that is determined to be nonuniform in irradiation intensity of the laser beams. With this, it is possible to make irradiation intensityies of the laser beams uniform over the target region.

The invention discloses a metal plug stacking machine which comprises a rack, a control system, a first loading mechanism, a first moving mechanism, a second moving mechanism, a testing mechanism, a second loading mechanism, a first conveying mechanism and an unloading mechanism, wherein the first loading mechanism is used for clamping plugs from a positioning fixture and transferring the clampedplugs to the first moving mechanism; the first moving mechanism is equipped with a transverse fixture and a longitudinal fixture, and capable of moving along the X direction; the second moving mechanism is capable of clamping and rotating the plugs; the second loading mechanism is used for clamping the plugs from an unstacking mechanism and transferring the clamped plugs to the positioning fixture, and / or clamping an empty plastic-adsorbing tray from the unstacking mechanism and transferring the clamped empty plastic-adsorbing tray to the first conveying mechanism; the first conveying mechanism is used for conveying the empty plastic-adsorbing tray to the unloading mechanism; the unloading mechanism comprises a moving assembly and a stacking assembly; the moving assembly is capable of transferring the non-defective plugs and / or the defective plugs to a second conveying mechanism; and the stacking assembly is capable of transferring the empty plastic-adsorbing tray to a stacking mechanism, and / or transferring the non-defective plugs and / or the defective plugs to the stacking mechanism for classification and stacking. The metal plug stacking machine disclosed by the invention is highin product detection precision and detection work efficiency.

The invention provides a Mecanum-wheel-based omnidirectional mobile ray source end robot synchronization tracking method. A ray source end robot autonomously walks and records encoder information so that the number of rotating circles of each wheel is obtained, and the information is wirelessly transmitted to a digital flat-panel detector end robot; and the digital flat-panel detector end robot controls rotation of each wheel of the digital flat-panel detector end robot according to the encoder information transmitted by the ray source end robot and eliminates accumulative error generated by movement of the digital flat-panel detector end robot. Synchronous walking of the ray source end robot and the digital flat-panel detector end robot can be realized, and synchronization of the ray source end robot and the digital flat-panel detector end robot is enabled to be more accurate by eliminating accumulative error generated by movement of the digital flat-panel detector end robot.

The invention relates to a copper-clad plate surface defect visual online detection method based on deep learning, which comprises the following steps: continuously scanning a copper-clad plate passing through a conveyor belt at a constant speed line by line through a linear array scanning camera to complete image acquisition to obtain a complete and clear copper-clad plate image; carrying out defect detection on the acquired copper-clad plate image, if a defect is detected, marking the copper-clad plate as a defective copper-clad plate and giving an alarm, and simultaneously intercepting a defect image in the copper-clad plate; for defect images, adopting a deep neural network learning method, building a TensorFlow framework for defect classification, distinguishing different types of defects, and giving a targeted repair scheme; and displaying defect detection and defect classification results on the display screen, so that field staff can conveniently check the real-time state of the copper-clad plate in time and carry out subsequent processing. The invention further provides a corresponding device, and the problems that an existing copper-clad plate defect classification system is high in dependence on manpower and equipment, low in accuracy and long in consumed time can be solved.

The invention discloses a dielectric barrier discharging ionization source with air as reaction gas. The ionization source uses a 30 KHz radio-frequency power supply as a discharging electrode, and the other electrode is connected with the ground. The outer diameter of quartz glass is 6 mm, the inner diameter of the quartz glass is 4 mm, a copper plate is adhered to the outer surface of the quartz glass directly in the discharging electrode, and a ground electrode is arranged on an inner shaft of a glass tube. Helium is used as discharging gas, and flow speed is controlled to be 0.5-1.5 liter / second. The reaction gas is led in from a glass tube opening below a discharging high-voltage electrode, and the size of the glass tube is same as that of the glass tube in a discharging area. After the air is added into the discharging source, the sensitivity of a compound ionized by absorbing electrons is improved by 5 times. The ground electrode arranged at the front end of the discharging tube can restrain discharging wake flame effectively, released heat increases vapor pressure of explosives hard to volatile, and the explosives hard to volatile can be detected fast after the ionization source is combined with a micro mass spectrum.

The invention relates to the technical field of PCB machining. Automatic machining equipment of PCBs comprises a feeding device, a positioning detection device, a laser marking device and a conveyingjoining device, wherein the feeding device is used for conveying a plurality of circuit boards to the positioning detection device, the positioning detection device is used for positioning the plurality of circuit boards, detecting front and back surfaces of the plurality of circuit boards and transferring the plurality of circuit boards to the laser marking device, the laser marking device is used for carrying out laser processing on the circuit boards and conveying the circuit boards to the conveying joining device, and the conveying joining device is used for converting multi-block conveying of the circuit boards into single-block conveying for subsequent labeling processing. The device has the advantages that multiple blocks of circuit boards are conveyed at the same time, the conveying efficiency is improved, front face and back face detection and overturning are facilitated, and the overturning efficiency and the laser efficiency are improved; and the continuity of the whole processing production line is improved.

The invention relates to the field of traffic violation inspection, in particular to an unmanned aerial vehicle side road vehicle illegal parking detection and evidence acquiring system and method. The unmanned aerial vehicle side road vehicle illegal parking detection and evidence acquiring system comprises two modes of the unmanned aerial vehicle and thirteen functional modules. The first mode is an unmanned aerial vehicle inspection mode, and the mode comprises an image acquisition module, a vehicle detection module, a temperature acquisition module, a violation determination module, and aflight control module. The second mode is an unmanned aerial vehicle evidence acquiring mode, which is triggered by an unmanned aerial vehicle when an illegal parking phenomenon is detected in the inspection mode, and comprises an image acquisition module, a camera holder control module, an evidence acquiring point positioning module, a flight control module, a license plate detection module, a license plate detection failure determination module, a license plate recognition module, and an information packaging and sending module. The unmanned aerial vehicle side road vehicle illegal parking detection and evidence acquiring system provided by the invention is high in operation speed, high in detection precision and flexible in detection area, can guarantee the timeliness of road inspection, and provides guarantee for traffic convenience and traffic safety of residents.

The invention relates to a wearing-resistant ultrasonic thickness meter with high testing precision. The ultrasonic thickness meter comprises a host machine, a connecting line, an operating lever, a flat plate, a testing mechanism and two fixing mechanisms. The fixing mechanism comprises a fixed plate, a first motor, clamping plates and two telescopic assemblies. The telescopic assembly comprisesa bearing, a first driving shaft, a moving block, a telescopic rack and two first connecting rods. The testing mechanism comprises a moving assembly, a movable board, a second motor, a turntable and two testing assemblies. The testing assembly comprises an adjusting unit, an adjusting plate, a probe and a plurality of testing units. The wearing-resistant ultrasonic thickness meter with high testing precision makes the two clamping plates fix a workpiece through the fixing mechanisms, thereby preventing relatively large-distance offset of a probe in a testing process, and ensuring smooth testing. Furthermore, in a process of driving the probe to perform rotating testing through the testing mechanism, the angle of the probe is adjusted and testing precision is improved; and furthermore wearing caused by contact between the probe and the workpiece is prevented, thereby prolonging service life of the equipment.

The invention discloses a sample tank used for observation of a liquid oxygen fluorescence spectrum, and the sample tank comprises a liquid oxygen tank, a liquid nitrogen tank outer container and a liquid nitrogen tank inner container; the liquid oxygen tank and a liquid nitrogen tank are prepared from pyrex glass by an integrated melting process. The liquid nitrogen tank is a thermal insulation device with the inner layer and the outer layer. A vacuum interlayer is arranged between the inner layer and the outer layer. Two ends of the liquid oxygen tank and liquid nitrogen tank are laser through windows prepared from pyrex glass, and the centers of the side walls of the liquid oxygen tank and liquid nitrogen tank are welded with observation windows used to collect fluorescence by the integrated melting process. The sample tank has the advantages that the sample tank solves the problem of frosting on the observation windows, caused by larger temperature difference between the liquid nitrogen tank and the outside, and simultaneously solves the problem of rapid evaporation of liquid oxygen at room temperature.

The invention provides a power transmission line insulator detection robot, which comprises a fixation installation support, a walk driving device, a guide device and a detection device. One side of the fixation installation support is an insulated toothed bar. The walk driving device is engaged with the insulated toothed bar through a gear. The guide device is arranged on the walk driving device.The detection device is fixedly connected to one side of the walk driving device. In the process of detecting an insulator string of a power transmission line, the walk driving device moves based onengagement between the gear and the toothed bar, and after the detection device reaches a preset position, a probe is rotated to lap each steel cap to realize detection of the insulator string one byone.