289results about How to "Not affected by temperature" patented technology

The invention relates to a food cooking utensil comprising a food container and an electromagnetic heating device. The food container is placed on the electromagnetic heating device; the electromagnetic heating device comprises a machine body, electromagnetic coils and a control circuit board, the electromagnetic coils are located in the machine body, and the control circuit board is electrically connected with the electromagnetic coils; the electromagnetic heating device is further provided with vibrating reeds, vibrating spaces are arranged between the vibrating reeds and the upper surfaces of the electromagnetic coils and between the vibrating reeds and the bottom surface of the food container, and the vibrating reeds induce an alternating magnetic field of the electromagnetic coils to generate ultrasonic waves. The vibrating reeds are arranged above the electromagnetic coils to induce the electromagnetic field to generate the ultrasonic waves which act on food in the food container, mouthfeel of the food is improved, and application of the ultrasonic waves to kitchen household appliances is achieved. The ultrasonic waves are generated and transmitted in a non-contact mode, direct contact with the high-temperature food container and the high-temperature electromagnetic coils can be avoided, temperature influences are small, and performance is stable and reliable. In addition, no driving circuit needs to be added, the structure is simple, and cost is low.

An electrostatic-conducted epoxy-resin terrace coating and its coating process are disclosed. The coating consists of finish and primer, finish uses conductive short-staple slurry with excellent conductive and dispersing performances, and surface and volume resistances reach to 5*10(4)-1*10(6)omega, furthermore, finish utilizes composite accessory system with disperser, leveling agent, antifoaming agent and rheological agent; primer uses conductive graphite powder, and surface and volume resistances reach to 10(3)-10(4)omega. The process is carried out by pasting conductive copper foil at an interval 1m*2m, building an electrostatic dissipative leakage layer, connecting a grounding device by1000m2 with grounding resistance<4omega and composing complete electrostatic leakage system. It's simple, convenient and has excellent and long-acting electrostatic-conducting effect.

The invention discloses an RC (resistance-capacitance) oscillator, which comprises a bias voltage generating circuit, a charging and discharging current generating circuit, a charging and discharging circuit, an external hysteresis voltage generating and gating circuit, an internal hysteresis comparator and a feedback control signal generating circuit. By adopting the internal and external hysteresis comparator, the reference current and the reference voltage can change along with changes in the voltage of an external power supply, so that effects of the voltage of the power supply on the output frequency can be overcome. Meanwhile, since resistors with different temperature coefficients are adopted, the reference current cannot be affected by the temperature. Moreover, since only one comparator is adopted in the overall structure, effects of the temperature, caused by the input offset voltage in double comparators, on the output frequency can be overcome.

An array-type flexible electric eddy sensor is composed of sensing coil array on the film substrate, leading-out signal line, grounding line, multi-channel gating switch and clapp oscillator. Its advantages include not deformation and high temp performance and consistancy.

This invention relates to a new fiber position monitoring method and its system. The system is characterized by the following: it uses single light fiber as large arrange distribution sensor fiber and gets the disturbing source physical characteristics according to the phase inversion of the interference signals and determines the detail positions of disturbing source according to the frequency spectrum of the interference signals. It uses the sensor fiber end and reflecting lens method to improves the system accuracy.

The invention discloses a nitration method of iron-carbon nitrosation, a reactor therefor and a method of sewage water denitrogenation. Iron filings and active carbon are added in the reactor hierarchically or mixed, water containing ammonia nitrogen is supplied in the reactor and oxygen enriched air is blew in thereof, only inorganic iron-carbon in condition of aeration, ammonia nitrogen is conversed into nitrite and nitrate steadily. The reactor is composed of a supporting layer, a back purge system, a water-inlet- distribution device, a air diffuser, iron / carbon composite material, a drift eliminator and bed body, nitrosation or nitration is finished in action of ammonia sewage water. The reactor is combined with a denitrify reactor, a anaerobic bioreactor, or used as a aeration biological filter of biology filler to finish denitrification process of nitrogen sewage water. The reactor has advantages of stable performance, high efficiency, low power cost and simple maintenance. An integrated denitrification technics is formed in the reactor, denitrification efficiency of the whole flow is improved.

The invention relates to a thermal power plant coal inventory measuring and calculating method based on a four-axis aircraft. The method includes the following steps that (1) laser distance measurement is conducted over a coal pile, the straight-line distance h between an acquisition point over the coal pile and a surface point of the coal pile is measured, the straight-line distance between the acquisition point and the horizontal plane of a place where the coal pile is located is H, the straight-line distance z between the surface point of the coal pile and the horizontal plane of the place where the coal pile is located is equal to H-h, and meanwhile, horizontal coordinates x and y of the acquisition point are acquired through a GPS positioning module; (2) the step (1) is repeated, so that the straight-line distances between multiple acquisition points over the coal pile and multiple surface points of the coal pile and horizontal coordinates are acquired, the straight-line distances between the surface points of the coal pile and the horizontal plane of the place where the coal pile is located are acquired through the straight-line distances between the acquisition points over the coal pile and the surface points of the coal pile, and therefore a coal pile vertical view outline is drawn; (3) the approximate size of the coal pile is calculated through the straight-line distances between the surface points of the coal pile and the horizontal plane of the place where the coal pile is located and the horizontal coordinates of the acquisition points. The method is suitable for measurement conducted in various environments and large-area region measurement can be achieved.

The invention discloses a method and a system to control quality in a cold rolling system capable of preventing frequent chatter masks and hot cracks in the continuous cold rolling process. Meanwhile, the distortion and cutting of steel plates due to the roughness difference between the upper and lower surfaces of steel plates is also prevented. More specifically, the invention discloses a system and a method for detecting the quality abnormality in a cold rolling system, wherein a vibration sensor, a torque sensor, a temperature sensor and a current sensor are arranged inside a rolling mill. The information measured by the above sensors are used for detecting signals which cause defects, which are also used for minimize the defect ratio of the steel plates being rolled.

The invention discloses an oil-well cement leakage-proof toughener which not only has leakage-proof function and improves the toughness of cement rocks, but also has good multiple-purpose project performance, so as to have double effects and solve the technical problems of slurry loss and the inherent brittleness of the cement rocks in the process of well cementation; the oil-well cement leakage-proof toughener comprises the components based on the weight percentage: 5-30% of organic fiber material, 35-70% of special type inorganic fiber, 1.0-10% of organic polymer material, 5.0-15% of modifying agent and 1.0-10% of auxiliary material.

The invention provides a driving device (20) of a manual working machine (10) applied in agriculture, forestry and horticulture, comprising an electric motor (M), an energy storage device (A) and a control device used in the electric motor (M), the energy storage device (A) supplies power to the electric motor, wherein the electric motor (M) comprises a special and linear characteristic curve (30) formed by current (i) consumed by the electric motor (M) and rotating speed (n) of output shaft (22) of the electric motor (M), the control device (S) comprises a current limiting device (26) for limiting current passing through the electric motor (M) under a maximal value, in order to prevent overload on the electric motor (M), wherein the control device (S) limits current consumption of the electric motor (M) in low rotating speed at a number far less than the characteristic curve value, the characteristic value can be used as function of rotating speed capable of being obtained via characteristic curve (30) of the electric motor (M) according to the rotating speed.

The invention discloses a deep treatment method of fluorine-containing waste water and belongs to the technical field of treatment of the fluorine-containing waste water. The deep treatment method comprises the following steps: leading the fluorine-containing waste water to enter a reaction tank 1, regulating the pH (Potential of hydrogen) value of the waste water, staying for 10 min and then introducing upper-layer waste water into a reaction tank 2, adding GMS-F1 and CaF2, stirring for reaction and then introducing upper-layer waste water into a reaction tank 3, adding GMS-F5, stirring for reaction and then introducing upper-layer waste water into a reaction tank 4, adding a flocculating agent, stirring for reaction and then introducing upper-layer waste water into a sloping plate precipitation tank for treatment, and leading supernatant to flow into a buffering tank 1; introducing waste water in the buffering tank 1 into a reaction tank 5, adding the GMS-F5, stirring for reaction and then introducing upper-layer waste water into a reaction tank 6, regulating the pH value of the waste water, staying for 10 min and then introducing upper-layer waste water into a reaction tank 7, adding the flocculating agent, stirring for reaction and then introducing upper-layer waste water into the sloping plate precipitation tank for treatment, and leading supernatant to flow into a buffering tank 2; introducing waste water in the buffering tank 2 into a sand filtering tank, filtering, and then discharging. The deep treatment method disclosed by the invention has the advantage that after the fluorine-containing waste water is treated by the method, the content of fluorine ions in the discharged water can be lower than 1 mg / L.

The invention belongs to the field of the correlation technique of intelligent numerical control machine tool detection, and discloses a vision-based tool breakage detection method and system. The method comprises the following steps that (1) calibration and initialization counting are carried out on an ROI area of a tool; (2) images of the tool and a workpiece are collected in real time, and theimages are sequentially subjected to gray level and binarization processing to obtain a binary image; (3) the binary image is subjected to masking, and only the binary image corresponding to the ROI area is preserved; (4) after the binary image is subjected to morphological processing, the binary outline of the binary image is extracted, and then the reference outline is obtained; and (5) whetherthe ratio between the area of the reference outline and the calibrated tool outline area is smaller than a first preset value or not is judged, and corresponding action is carried out according to thejudgment result. The vision-based tool breakage detection method and system are high in reliability and speed, low in cost, good in flexibility and high in adaptability.

The invention provides food cooking equipment which comprises a shell and a cold air through-flow device. The shell is provided with a food cooking chamber, the cold air through-flow device comprisesan air drawing cover with an air drawing port, the air drawing cover is arranged in the shell and arranged on the upper portion of the food cooking chamber, the cold air through-flow device further comprises a motor and an air drawing wheel, the motor is arranged on the outer upper portion of the air drawing cover, the air drawing wheel is arranged inside the air drawing cover, the motor is arranged at the air drawing port and drives the air drawing wheel to rotate, the air drawing cover is provided with an air exhausting channel, the air drawing wheel drives air to flow towards the motor to form cold air flow, and the cold air flow flows into the air drawing cover through the air drawing port and is exhausted from the air exhausting channel. The food cooking chamber is provided with a water vapor exhaust port, the water vapor exhaust port is communicated with the air exhausting channel, and an air distribution device is arranged in the air exhausting channel and at the downstream of the water vapor exhaust port, so that part of high-temperature gas in the water vapor exhaust port changes in the flowing direction. The temperature of the exhausted gas can be effectively reduced.

The invention provides a micro double-bed solid fuel decoupling combustion reaction dynamic analyzer which comprises a fuel pyrolytic reaction generation device, a residual coke combustion reaction generation device, a double-bed high-temperature coupling device, a gas path device and an analysis test device, wherein solid fuel is firstly pyrolyzed under an inert atmosphere in a micro gas flow bed; then residual cokes enter the micro gas flow bed for combustion test under an air atmosphere; a quick gas detector is used for judging a reaction mechanism by measuring a generation sequence and a generation quantity characteristic of gas components in a fuel pyrolysis process and a coke combustion process, so that reaction dynamic parameters can be calculated. According to the micro double-bed solid fuel decoupling combustion reaction dynamic analyzer, the combustion dynamic parameters of the solid fuel can be tested through direct decoupling combustion through independent and quick switching of the atmospheres and the temperature; the pyrolyzed residual cokes are directly subjected to the combustion test without a cooling process; the temperature rising rates of the gas flow bed and a fluidized bed are high, so that a combustion condition in an actual boiler can be well simulated; the measured reaction dynamic parameters are close to intrinsic reaction dynamic parameters.

The invention relates to a circular-arched steel-corrugated-plate bridge and culvert structure. A circular-arched bridge and culvert with a reinforced concrete structure is not adaptable to foundation deformation and uneven settlement well, damages caused by earthquakes cannot be buffered effectively, construction cost is high and construction period is long. Bases are arranged at the lower portion of the bridge and culvert structure. Single-span or multi-span bridge arches are arranged on the upper portions of the bases, are steel-corrugated-plate circular arches and are formed by assembly and fixation of steel corrugated plates through bolts. The radius of each steel-corrugated-plate circular arch is 2.1648m, central angle is 135 degrees, arc curvature radius is 4.33m, single span is 4m, and rise height is 1.3365m. A circular-arched bridge and culvert with the structure has axial corrugations and excellent mechanics characteristics, stress strain caused by load is simultaneously distributed axially and radially, stress concentration of the load is effectively dispersed, advantages of a steel structure are exploited better, and wide application prospect is provided.

The invention belongs to the technical field of traditional Chinese medicinal material processing and particularly relates to a multi-layer type vacuum radio frequency and hot wind combined drying method and equipment for rhizomatous traditional Chinese medicinal materials. The equipment comprises a circular hot wind drying system, a radio frequency heating system, a pulse vacuum generation systemand an automatic control system. The circular hot wind drying system comprises a wind return pipeline (9), a wind return pipeline electromagnetic valve (11), a centrifugal fan (13), a wind input pipeline (14), an axial flow fan (15) and the like. The automatic control system comprises a human-computer interaction interface (4). The pulse vacuum generation system comprises a water drainage valve (33), an air drawing pipeline (34) and the like. The radio frequency heating system comprises a fiber optic temperature sensor (26), a material (27), a material tray (28), a weighing support (29), a drying box (47) and the like. In the drying process, the sensor is used for monitoring the change situation of media in the drying box (47) and the material (27), and based on the analysis, decision andexecution of the automatic control system, the complete equipment has the characteristics of being high in automation degree, low in labor intensity and the like.

The present invention provides a lithium ion battery pole piece expanding fracture test method. The method is characterized in that by winding the conducting wires of different fracture force values on an electronic core, and monitoring the change of the resistance values of the conducting wires, a relation of the battery charging / discharging circulation times and the fracture force values F of the conducting wires is obtained, and a corresponding curve chart of the electronic core expansion forces and the battery charging / discharging circulation times is drawn; and by analyzing the corresponding curve chart of the electronic core expansion forces and the battery charging / discharging circulation times, a corresponding relation of the lithium ion battery charging / discharging circulation times and the pole piece fracture can be obtained. Compared with the prior art, the lithium ion battery pole piece expanding fracture test method of the present invention determines the pole piece fracture situation by monitoring the change of the resistance values at the two ends of the conducting wires, so that the method has the advantages of being short in test cycle, wide in application range, high in accuracy and little in resource consumption, being simple and convenient to operate, being not interfered by the environment temperature, etc.

The invention discloses a porous ceria nanorod composite structure and a preparation method of an enzyme solution based on the structure, as well as enzyme-linked immunosorbent assay (Elisa) application, and belongs to the technical field of nanomaterials. The porous ceria nanorod composite structure comprises a ceria nanorod and an antigen or an antibody coated on the outer surface of the ceria nanorod, wherein the simulated enzyme solution prepared by the ceria nanorod composite structure has a wide detection response range and high sensitivity against the antibody or the antigen, the detection limit can achieve the level of 10pg / mL, the preparation method is simple and easy to operate, and the Elisa detection method is easy to operate and good in environmental adaptability, and is not affected by environmental temperature.

The invention provides a non-contact optical fiber device and method for measuring flows. The device comprises a sensing fiber mounted in a pipeline. One end of the sensing fiber is connected with a grating, an optical fiber, a circulator and a light source sequentially, and the other end is connected with the grating, an interferometer and the circulator. The method includes connecting the grating to two sides of the sensing fiber to form a sensing unit, allowing light emitted from the light source to enter the sensing unit from the front end, converting monitoring vibration acceleration into monitoring optical phase by the grating interferometric technique, performing demodulation processing on phase information by the phase carrier technique PGC (programmed gain control), and realizing non-contact flow monitoring. The device is free of contacting with fluid, interfering with the flow field and electrical measurement, safe and reliable, high in adaptability, and free of being interfered by electromagnet; continuous remote measurement is realized, influences by light fluctuation and temperature changes are eliminated, throttle pressure loss rarely occurs, energy is saved, flows of corrosive fluids can be measured, multi-point measurement can be realized, and the device can be applied in measurement processes with various flows.

The invention discloses a construction method of a reinforcing bar of a tie expansion bolt post-planted wall, which comprises the following steps: (1) after the completion of the construction of a concrete structure, a hole is drilled on the concrete structure according to the designing requirement; (2) the drilled hole is cleaned, a tie expansion bolt is inserted into the hole, and the wall reinforcing bar is inserted into a countersunk hollow bolt shank of the tie expansion bolt so as to lead the exposure of the anchor end to be more than or equal to 20mm; and (3) a nut of the tie expansion bolt is screwed so that pores between the wall reinforcing bar and the tie expansion bolt, as well as pores between the wall reinforcing bar and the concrete structure, are expanded into a whole. On the premise of ensuring quality, the construction method can utilize steel bar processing machinery to process the wall reinforcing bar, and the installation of the wall reinforcing bar requires only an electric drill or an electric hammer, a hand hammer, a brush and an open spanner, thus having simple operation.

Disclosed is a Chinese herbal agent for controlling peanut flavacol and its application method, which comprises the following raw materials (by weight ratio): chinaberry bark, pricklyash peel, cassia bark, dried orange peel, pomelo ped, eucalyptus, mountain spicytree fruit, goldthread root, baikal skullcap root, corktree bark, rhubarb horsetails, sweet wormwood, dyer's woad, root of ballon flower, cyperus tuber, seed of cowherb, sophora leaf, Micromeria biflora Benth., purple perilla, arisaema tuber, zeolite and porcelain clay.

The invention relates to a device and a method of the device for detecting the water level height of a pulsator washing machine. The device comprises a Hall sensor which is arranged on an outer wall of an outer drum. A magnetic floating device which is capable of lifting along with the water level of the washing machine is arranged on an inner wall of the outer drum, the Hall sensor is communicated with the magnetic floating device at a corresponding position, and the Hall sensor is connected with a controller. The technical scheme indicates that the Hall sensor is arranged on the outer wall of the outer drum, and the magnetic floating device which is capable of lifting along with the water level is arranged on the corresponding position on the inner wall of the outer drum. Along with the raising of the water level in the washing machine, the magnetic floating device is communicated with the Hall sensor at different height. Signals are output from the Hall sensor to the controller, and then judgment of the water level height is made by the controller. The device is accurate in judgment, free from influences of factors of the temperature and tightness and high in stability.

The invention discloses a modified acrylic acid waterproof paint and a preparation method thereof. The modified acrylic acid waterproof paint is prepared from the following raw materials in parts by weight: 70-100 parts of acrylic monomer, 1-30 parts of polyurethane prepolymer, 0-50 parts of a plasticizer, 0-100 parts of a pigment filler, 0-3 parts of a high-performance assistant, 0.1-3 parts of an accelerant and 0.1-4 parts of an initiator. The invention further discloses the preparation method of the modified acrylic acid waterproof paint. Double bonds are introduced into the polyurethane prepolymer, and the modified acrylic acid waterproof paint is synthesized through free radical polymerization and acrylic monomer copolymerization; and the modified acrylic acid waterproof paint is free of solvent, low in viscosity, high in strength, simple in construction and reliable in quality, and can be applicable to engineering waterproofing of buildings, bridge decks, planting roofs and the like, and the reaction curing process is not affected by temperature and humidity.

The invention discloses a biological preservative and a preparation method thereof. The biological preservative is prepared from, by weight, 20-40 parts of nisin, 2-8 parts of trhalose, 5-10 parts of chitosan, 10-20 parts of compound amino acid, 4-8 parts of garlic, 10-15 parts of fresh ginger, 2-6 parts of pepper, 1-5 parts of clove, 2-8 parts of cinnamon, 2-6 parts of nutmeg, 2-5 parts of anise and 3-8 parts of fennel. According to the biological preservative, the components are subjected to compatibility, the synergistic effect is achieved, complementation and synergism are achieved, the bacteriostasis range can be enlarged, the preservative effect is enhanced, and the good antibacterial effect is achieved for bacteria, molds and yeast; meanwhile, garlic, fresh ginger, pepper, clove, cinnamon, nutmeg, anise and fennel contain a large number of natural active materials, the biological activity is achieved, amino acids are added jointly, the good health care functions such as appetite promotion and digestion aiding are achieved for body health, and the good popularization and application value is achieved.

The invention relates to a modified natural polymer combined flocculating agent and a using method thereof. The flocculating agent is the combination of modified natural polymer and complexing agent, wherein the modified natural polymer is prepared by carrying out phosphorylation modification, sulfonation modification or etherification modification on one or combination of two in shells of shelled animals such as shrimps, crabs and insects, cotton, straw, bagasse and starch; the complexing agent is combination of at least two in magnesium chloride, calcium chloride, sodium hydroxide, potassium hydroxide, aluminium chloride, aluminum sulfate, aluminium potassium sulfate, calcium oxide, sodium tetraborate, ferric chloride, ferrous sulfate, ferrous chloride, ferric sulfate, boric acid, hydrochloric acid and sulfuric acid. After the modified natural polymer is added, the complexing agent can be added into the natural polymer at any time within 12h according to the need of flocculation, and the flocculation reaction can be immediately finished. The invention has the advantages of controllable flocculation, rapid flocculation speed, large and firm flocculating body, low water content, safety, non-toxicity and wide temperature adaptation range.

The invention discloses a fibre grating stress sensing train positioning and real-time tracking system which is insensitive to temperature. The system of the invention is characterized in that a plurality of fibre grating stress sensors (A211...A21n)...(A211...A21n) with different central wavelengths are embedded just below one steel rail of each line of the railway with the interval of 100-500 meters. A broadband light source (A10) is connected with a fast optical switch (A20) and a first fibre grating stress sensor (A211...a2m1); a final fibre grating stress sensor (A21n...A2mn) is connected with an optical amplifier (A30), a wavelength-division element (A41), a high-speed optical switch (A42), an O / E converter (A43), a digital signal processing module (A44), a host computer (A45), as well as a server (A47) and a large screen (A46) which memorize three-dimensional electronic maps. The fibre grating stress sensing train positioning and real-time tracking system is suitable for the positioning and real-time tracking of the high-speed railway trains.