70results about How to "Achieve temperature" patented technology

The invention relates to the technical field of lighting, in particular to a driving power supply control circuit, a control method and a lighting application method. Comprising the steps that an acquisition module acquires spectral data and temperature data of a current environment; the receiving module receives the target color rendering index, the target color temperature and the target illumination; the control module is connected with the acquisition module and the receiving module, and is used for calculating a PWM duty ratio needing to be compensated according to the temperature data, obtaining a target PWM duty ratio based on the current color rendering index Ra, the current correlated color temperature CCT, the current illumination and the control parameters, and outputting a PWM signal based on the target PWM duty ratio and the PWM duty ratio needing to be compensated; and independent and stable constant-current signals are finally output by using the voltage balancing circuit and the driving module. The problems that an existing LED driving power source is single in function and lacks self-adaptive control capacity and monochromatic light trailing are solved. The LED powder-free lamp can continuously and stably operate, and meanwhile, high color rendering index and dynamic light color balance are achieved.

The present invention discloses a dual-mode flexible sensor for measuring temperature and strain, comprising two flexible substrates (1) arranged at the outermost sides, the outer surfaces of the two flexible substrates (1) are respectively attached with strain sensitive materials (4), the inner surfaces are respectively covered with electrodes (3), and a dielectric material layer (2) is sandwiched between the two electrodes (3); the flexible substrate (1) is a flexible film and is non-conductive. The dual-mode flexible sensor realizes dual-mode measurement of temperature and strain by utilizing that the resistance of the strain sensitive material changes with strain and the dielectric constant ε and thickness d of the dielectric material change with temperature. In addition, the dual-mode flexible sensor has a simple structure, a simple and efficient preparation and use method, a wide temperature measurement range, and can realize temperature measurement of 20 to 200°C and strain measurement of 0 to 2000με. It has high measurement accuracy, a temperature measurement error of about 4.44%, and a strain measurement error of about 6.5%. It can be applied to the detection of automobile tire pressure and temperature.

The invention discloses an in-reactor fuel irradiation test loop based on the working condition of a pressurized water reactor. The in-reactor fuel irradiation test loop comprises a main circulation system, a purification system, a fission substance release monitoring system, a water supplementing system, an emergency cooling system, a cooling water system, an in-reactor device pressure failure online monitoring system, a reactor shutdown protection system, a thermal parameter measurement system, a power supply system and an air ventilation and exhaust system. According to the loop, a pressurized water reactor working condition environment is realized, and various technical indexes such as temperature, pressure, flow velocity and water quality required by fuel test are ensured to be reached; the safety level of each system is reasonably configured, so that the requirements of laws and regulations are met, and the safety performance of the loop is improved; by reasonably arranging a multi-stage cooling water system, an air exhaust system and the like, the radioactive activity of an exhaust flow is reduced, the environmental safety is ensured, the release of radioactive aerosol in a process is eliminated, the exposure dose of workers is reduced, the safety of the workers is ensured, the safety risk of devices in the reactor to the reactor under the working condition of a fracture accident is eliminated, and the reliability of the system is improved.

The invention relates to the technical field of temperature early warning management, in particular to an electrolytic bath temperature central monitoring and early warning system. The system comprises an in-tank temperature frequency domain analysis module, an in-tank temperature and energy consumption influence analysis module, an in-tank electrolytic strength abnormity response adjustment module, an in-tank temperature over-low abnormity early warning adjustment module and an in-tank iterative execution influence analysis module. Temperature sensors are arranged at key positions in an electrolytic cell to monitor temperature signal distribution in the cell in real time and carry out frequency domain analysis, and meanwhile, corresponding current and voltage are obtained, electrolyte energy consumption analysis and time sequence influence analysis are carried out, and a time sequence correlation influence degree is obtained; and if the conditions are gradually increased and the temperature fluctuation is increased, designing and implementing an energy consumption abnormity response measure, if the conditions are gradually reduced and the temperature fluctuation is reduced, designing and implementing a temperature abnormity response measure, and if the conditions are judged to be other conditions, continuing to iteratively execute the time sequence influence analysis. The stability and quality of the electrolysis process can be guaranteed.

The invention discloses an elevator control cabinet monitoring method based on visible light and infrared image fusion, which comprises the following steps: acquiring and optimizing an initial elevator control cabinet image to obtain an optimized elevator control cabinet image; registering the visible light camera and the infrared camera to obtain a camera extrinsic parameter matrix; acquiring an elevator control cabinet component data set, and constructing a target detection network model based on the elevator control cabinet component data set; the optimized elevator control cabinet image is input into a target detection network model, the position of a visible light elevator control cabinet component is obtained, the position of the elevator control cabinet component is mapped to an elevator control cabinet infrared image through a camera external parameter matrix, and the temperature of the corresponding elevator control cabinet component is calculated based on the infrared image; and temperature matching and real-time monitoring of elevator control cabinet components are realized. Abnormity of the elevator control cabinet can be found in time, and safe operation of an elevator is guaranteed.

An intelligent temperature control method, system, medium and program product applied to a fermentation bin, which relates to the field of electronic digital data processing. The method includes: the system obtains the microbial activity intensity information and the temperature information in the fermentation bin in real time, and adjusts the temperature of the fermentation bin to a preset temperature range corresponding to the current fermentation stage; then, by dividing the preset temperature range into a preset number of temperature intervals, the temperature of the fermentation bin is adjusted to each temperature interval divided into the preset temperature range in turn, and the corresponding microbial activity intensity information is recorded; the temperature interval with the highest score among all the recorded information is set as the target temperature interval, which is used as the control temperature of the subsequent fermentation bin. The implementation of this method can achieve more accurate control of the temperature of the fermentation bin, maintain the high activity of the microorganisms, and improve the fermentation efficiency and product quality.

The invention relates to the technical field of aero-engine turbine blade cooling structure measurement, and discloses a temperature and strain synchronous measurement system and method.The system comprises a mainstream system, the mainstream system comprises an air inlet section, an experiment section and an exhaust section which are sequentially arranged from left to right, the experiment section is communicated with an experiment piece, and the experiment piece is communicated with the exhaust section; external air enters the air inlet section to be heated and then sequentially passes through the experiment piece and the exhaust section; the cold air system comprises an air storage tank, the air storage tank is communicated with the experiment piece through a pipeline, and the air storage tank is used for conveying cold air into the experiment piece; and the measuring part comprises a plurality of cameras, and the plurality of cameras are used for carrying out data acquisition on the temperature and the deformation strain of the experimental part. According to the invention, synchronous measurement of the temperature and the strain of the cooling structure under the high-temperature condition is realized, so that data support is provided for accurately evaluating damage and service life of turbine blades under real conditions.

The invention provides a photovoltaic system. The photovoltaic system comprises a photovoltaic module; a steam generating structure; a steam collector; a steam condensation structure; the liquid level in the steam condensation structure is flush with the liquid level in the steam collector. According to the photovoltaic system provided by the invention, the steam generation structure is arranged in the photovoltaic module, and the steam quantity generated in the steam generation structure can be automatically adjusted along with the temperature of the photovoltaic module, so that dynamic heat dissipation can be performed on the photovoltaic module to prevent the temperature of the photovoltaic module from being too low or too high, and the reliability and the service life of the photovoltaic module are ensured; and the liquid level conservation principle of the communicating vessel is utilized, so that a medium released by heat and liquefied in the steam condensation structure automatically flows into the steam generation structure and the steam collector, the heat dissipation effect on the photovoltaic module can be realized under the condition that a power mechanism (such as a compressor) is not arranged, the production cost of the photovoltaic module is reduced, and the production efficiency of the photovoltaic module is improved. And the energy consumption of the power mechanism is avoided, and the power generation efficiency of the photovoltaic module is improved.

The invention provides a high-precision decoupling method for multiple parameters of a long-distance optical fiber sensitive ring, and belongs to the technical field of optical measurement and optical fiber sensing. The method is characterized by comprising the following steps: testing fast axis signals and slow axis signals of an optical fiber sensitive ring before and after temperature change by using a polarization-maintaining OFDR; calculating a cross-correlation wavelength offset and a self-correlation wavelength offset; correcting position deviation and decoupling coefficient fluctuation; decoupling to obtain temperature and thermal strain distribution in the optical fiber sensitive ring; by using the strain and temperature calibration device of the tail fiber of the optical fiber sensitive ring, the correctness of the temperature and thermal strain decoupling result of the optical fiber sensitive ring is ensured. According to the method, high-precision (+ / -0.5 DEG C, + / -5 mu epsilon) testing of internal temperature and thermal strain distribution of the kilometer-level optical fiber sensitive ring under rapid temperature change can be realized, and the method can be used for multi-parameter detection and symmetry analysis of the optical fiber sensitive ring and performance forecasting and optimization of a gyroscope system.

The hot plate welding device with the heat insulation structure comprises a welding box, a middle partition plate, a heat insulation cover and a driving structure, hot molds are fixed to the upper surface and the lower surface of the middle partition plate respectively, the driving structure drives the middle partition plate to reciprocate in the front-back direction, and the heat insulation cover is fixedly connected with the welding box and made of heat insulation materials. The heat insulation covers and the hot molds are arranged in a one-to-one correspondence mode, the heat insulation covers cover the exteriors of the corresponding hot molds and are in sliding connection with the upper surface and the lower surface of the middle partition plate, an openable door body is arranged in front of the heat insulation covers in the moving direction of the middle partition plate, when the door body is opened, the hot molds can stretch out of the heat insulation covers, and when the door body is closed, the hot molds can stretch out of the heat insulation covers. A heat insulation cavity is defined by the heat insulation cover and the middle partition plate. The heat insulation cover is used in the welding box, so that an effective heat insulation effect can be achieved, heat of a hot mold is controlled in a fixed space and is discharged to a fixed position in order, and the working risk that a user of the hot plate welding machine needs to be in a high-temperature working environment for a long time is reduced.

The utility model provides an electronic temperature measuring device for a stirring tank. Comprising an electronic chip type temperature measurement probe with an electric signal outgoing line, the temperature measurement probe is located at the lower end of a stirring rod, the stirring rod is provided with a wire groove used for laying a temperature measurement probe electric signal line, and a temperature measurement probe electric signal is connected and communicated with an upper computer through a conductive slip ring assembly; the conductive slip ring assembly is composed of a conductive slip ring stator and a conductive slip ring rotor, the conductive slip ring rotor is installed on the stirring rod and rotates together with the stirring rod, and the conductive slip ring stator is fixedly installed on the fixing support.

The present invention discloses a carbon paper prepared at a reduced cost, a manufacturing method thereof and an application thereof, and belongs to the technical field of porous electrode material preparation. In view of the problems that the temperature during graphitization of carbon paper is high, the processing time is long, and the equipment loss is large, the preparation cost is high, and the uneven distribution of thermal stress caused by excessive temperature easily causes cracking, resulting in a decrease in the mechanical properties of carbon paper, the present invention provides a low-cost carbon paper manufacturing method, which can significantly reduce the graphitization temperature of carbon paper, and reduce the graphitization temperature from 2200°C to about 1500°C; shorten the graphitization processing time, reduce the loss of graphitization equipment, and thus reduce the manufacturing cost of carbon paper; in addition, compared with the prior art, the present invention can achieve the reduction of carbon paper cracking while ensuring the high electrical conductivity and thermal conductivity of carbon paper, effectively improve the tensile strength, bending strength and other mechanical properties of carbon paper, and avoid the problems of low electrical conductivity, low thermal conductivity and poor corrosion resistance of carbon paper caused by conventional low-temperature processes.

This invention provides a salt-resistant evaporator and its preparation method that utilize a dual-scale structure to achieve salt migration and bidirectional water replenishment, belonging to the field of saline wastewater treatment such as seawater desalination. The salt-resistant evaporator of this invention includes: an evaporation main frame, composed of an array of micron-sized unit cells connected together, with micron-sized pores between each pair of micron-sized unit cells; millimeter-sized channels passing through the evaporation main frame and located at its geometric center, communicating with the micron-sized pores between each pair of micron-sized unit cells; and a hydrophilic photothermal conversion coating disposed on the outer surface of the evaporation main frame. The salt-resistant evaporator of this invention forms a temperature gradient and a concentration gradient inside, thereby triggering Marangoni convection, pumping salt from a high-concentration region (micron-sized unit cells) to a low-concentration region (millimeter-sized channels), and finally returning it to the solution to be evaporated, ultimately achieving real-time salt migration.

The invention belongs to the technical field of high-temperature alloy smelting, and relates to a process for improving the surface quality of a first-class Ni-Fe-Cr-based high-temperature alloy consumable cast ingot and application. Comprising the following steps: firstly, performing vacuum induction melting on a high-temperature alloy to obtain a high-temperature alloy VIM electrode; then, the high-temperature alloy VIM electrode is subjected to protective atmosphere electroslag smelting, and a high-temperature alloy ESR electrode is obtained; and the high-temperature alloy ESR electrode is subjected to annealing treatment, finally, the high-temperature alloy ESR electrode is subjected to vacuum consumable smelting, and a high-quality high-temperature alloy ingot is obtained. According to the high-temperature alloy cast ingot produced through the method, forging cogging can be carried out after direct homogenization without scaling treatment, the production process is shorter, the delivery pressure is smaller, and the cost is lower.

The utility model discloses a constant-temperature turbulent flow device of a heating water tank of a heat exchange system, and relates to the technical field related to heat exchange. The device comprises a box body, a plurality of turbulent flow impellers which are linearly and uniformly distributed from top to bottom are arranged in the box body, tooth openings are formed in the circumferential side positions of rotating shafts in front of the turbulent flow impellers, a mounting plate is fixed to the right surface of the exterior of the box body, a circulating pump is fixed to the upper end face of the mounting plate, and an angle block is fixed to the top of the exterior of the box body; a ball opening communicated with the interior of the box body is formed in the upper end face of the angle block, a ball pipe is rotationally arranged in the ball opening, an inserting pipe communicated with the interior of the ball pipe is fixed to the upper end of the ball pipe, and the periphery of the inserting pipe is sleeved with a positioning ring frame. The turbulent flow impeller is sprayed through the circulating pump, so that water in the box body can rapidly flow, the heating efficiency is improved, meanwhile, the positioning ring frame drives the position of the bulb tube to be adjusted, different positions of the turbulent flow impeller can be impacted, and therefore the rotating force of the turbulent flow impeller is controlled.

The utility model proposes a kind of thermostat for chemical reagent experiment, including support load plate, the upper surface of support load plate is fixedly installed with temperature control seat, the inside of temperature control seat is equipped with support cover, the upper surface of support cover is opened with multiple placing holes, the inside of temperature control seat is opened with cavity, the inner bottom wall of cavity is fixedly installed with multiple temperature sensors, the bottom surface of temperature control seat is fixedly embedded with refrigeration guide plate, the bottom surface of refrigeration guide plate is fixedly installed with semiconductor refrigeration sheet, it is related to chemical reagent experiment field.The utility model is by the cavity of temperature control seat inside setting, can inject water liquid, utilize the good heat conductivity of water, can make the heat generated by annular electric heating wire evenly conduct to reagent, avoid local overheating, in addition by the cooperation of semiconductor refrigeration sheet and refrigeration guide plate, water liquid can be cooled directly, the problem that it is difficult to cool quickly after heating is solved, and then guarantee the experimental effect of chemical reagent.

The invention discloses an elevator traction motor operation control method based on a temperature monitoring result, and the elevator traction motor operation control method based on the temperature monitoring result is realized based on an elevator traction motor monitoring system based on the temperature monitoring result. The elevator traction motor monitoring system based on the temperature monitoring result comprises a first temperature detection device, a second temperature detection device, a first temperature processing circuit, a second temperature processing circuit, a first controller, a first remote communication module, a second controller and a second remote communication module. The first temperature detection device is installed at a traction wheel in the elevator and used for detecting the temperature T1 of the traction wheel in the elevator, and the second temperature detection device is used for detecting the temperature T2 of a traction motor in the elevator. According to the elevator traction motor operation control method based on the temperature monitoring result, the problem that in the prior art, due to the fact that the temperature is too high when a traction wheel works for a long time, abrasion of the traction wheel is large is solved.

The utility model relates to the technical field of automobile bumpers, in particular to a carbon fiber composite material automobile bumper which comprises a main bumper assembly, a main bumper inner supporting assembly is arranged on the inner side of the main bumper assembly, and an auxiliary bumper assembly is arranged on the outer side of the main bumper assembly. The main bumper assembly includes a bumper body. According to the scheme, the bumper body adopts the carbon fiber plate as the base layer, the bumper can efficiently absorb and disperse energy during collision due to the high-strength weight ratio characteristic of the carbon fiber plate, meanwhile, the weight is greatly reduced to optimize the fuel economy, the reinforcing layer adopts the aluminum alloy plate to enhance the rigidity, low-speed collision sinking is prevented, and the service life of the bumper is prolonged. The grid structure of the stainless steel framework further provides core support and resists structural collapse under extreme impact, the puncture-proof layer is made of glass fibers and effectively prevents sharp objects from penetrating through the puncture-proof layer, and the heat insulation layer and the impact-resistant layer achieve temperature isolation and kinetic energy absorption through polyurethane foam and polyester materials respectively.

The present application relates to the technical field of new material preparation, in particular to a recyclable aerogel phase change cold storage material with real-time temperature monitoring function and a preparation method and application thereof.The recyclable cold storage phase change composite material comprises a polymer aerogel and a phase change material loaded in the polymer aerogel; the polymer in the polymer aerogel contains a structural unit of a maleic anhydride group and a structural unit of a maleimide group, the recyclable cold storage phase change composite material can be recycled, has a smaller leakage amount, and can maintain a low temperature for a long time; the recyclable cold storage phase change material with real-time temperature monitoring function has a layer structure, comprising an inner layer formed by the recyclable cold storage phase change composite material and an outer layer formed by a second polymer aerogel, and can simultaneously realize mass temperature monitoring and recyclable performance.

An energy-saving dehumidification device capable of accurately controlling temperature and relative humidity belongs to the technical field of air conditioners and comprises a box body, an air inlet, an air supply outlet, a heat pipe heat exchange assembly, a refrigeration heat exchanger and an air feeder. The heat pipe heat exchange assembly is arranged on the inner side of the air inlet and comprises a plurality of U-shaped three-dimensional heat pipes, each U-shaped three-dimensional heat pipe comprises a pre-cooling section, namely an evaporation end, a heat conduction section and a reheating section, namely a condensation end, which are communicated in sequence, the pre-cooling section is arranged on the left side of the U-shaped three-dimensional heat pipe, and the reheating section is arranged on the right side of the U-shaped three-dimensional heat pipe; the heat conduction section is arranged at the bottom of the U-shaped three-dimensional heat pipe and is a connecting section of the pre-cooling section and the reheating section; a concave part is arranged between the pre-cooling section and the reheating section, the refrigeration heat exchanger is arranged in the concave part, one end of the refrigeration heat exchanger is connected with the evaporation end, and the other end of the refrigeration heat exchanger is connected with the condensation end, so that the energy-saving dehumidification heat pipe is formed; the air feeder is arranged on the inner side of the air supply outlet. The energy-saving dehumidification device has the beneficial effects that the temperature and the relative humidity are accurately controlled, and energy-saving dehumidification is realized.

The utility model discloses a food particle processing device. The food particle processing device comprises a frying furnace, a feeding and discharging device, a heating device and a driving device, the stir-frying furnace comprises a shell and a stir-frying cavity formed in the shell, and the stir-frying cavity can be communicated with the outside through a feeding and discharging device; the driving device is in transmission fit with the frying cavity and can drive the frying cavity to rotate; the heating device is arranged at the side part of the frying cavity and is used for heating the frying cavity; the feeding and discharging device comprises a feeding and discharging channel and a conveying piece arranged in the feeding and discharging channel. The shell is provided with a first exhaust port, the side wall of the feeding and discharging channel is further provided with a waste heat pipeline communicated with the first exhaust port, the feeding and discharging channel is further provided with a second exhaust port, and the second exhaust port can be communicated with an external gas collecting device. Through the first exhaust port and the waste heat pipeline, redundant heat in the working process of the heating device can be used for heating the interior of the feeding and discharging channel, and therefore it can be avoided that water vapor released from the furnace mouth directly condenses when encountering cold to affect the quality of raw materials / products.

The application discloses a kind of heating equipment temperature calibration system and its temperature calibration method, system includes non-contact temperature measuring equipment, control host, calibration table, heating equipment to be measured and man-machine interface, calibration table is installed with connecting contact and the calibration tray for fixing heating equipment to be measured, calibration tray is configured with one end connection heating equipment to be measured, the other end is connected with the connecting line of connecting contact, control host is connected with the connecting contact on calibration table by serial port, control host is gathered by non-contact temperature measuring equipment first temperature value of heating equipment to be measured on calibration tray, first temperature value is sent to heating equipment to be measured, so that heating equipment to be measured adjusts the heating body temperature calculation parameter of heating equipment to be measured according to first temperature value, so that the second temperature value calculated according to temperature calculation parameter of heating body is identical with first temperature value.The technical problem that the actual temperature of heating body of heating equipment and set temperature exist error is solved.

The utility model relates to a diving operation boiler for heating diving suit, which comprises a heating pipeline group and a tank body, the heating pipeline group comprises at least one group of heating pipelines, each heating pipeline comprises a water inlet pipeline, a heating pipeline and a water outlet pipeline which are communicated with one another, the water inlet pipeline is connected with a water inlet control valve, and the water outlet pipeline is connected with a water outlet control valve. The periphery of the heating pipeline is connected with an electromagnetic heating coil; the water inlet side of the tank body is connected with the water outlet pipeline, the water outlet side of the tank body is connected to a water inlet of the diving suit through a booster pump, and the periphery of the tank body is connected with an electromagnetic heating blanket. The heating pipeline provided with the electromagnetic heating coil and the tank body provided with the electromagnetic heating blanket are used for supplying water to the diving suit and heating the diving suit, rapid heating can be achieved, it is ensured that the water temperature is constant, water flow control and heating speed control can be achieved through the series-connection structure and the parallel-connection structure of the heating pipeline, and the heating efficiency is improved. And effective guarantee is provided for rapid heating and temperature control of the diving suit.

The utility model provides a temperature sensor calibration support which comprises supporting legs, an angle-adjustable platform and a control unit. The angle-adjustable platform comprises a base, an adjusting threaded rod, an adjusting assembly, an adjusting supporting rod, a standard blackbody furnace platform, a standard blackbody furnace protection rod, an angle adjusting device and a threaded rod fixing device. The adjusting threaded rod is in threaded connection with the adjusting assembly, and the adjusting assembly can roll on a threaded area; the adjusting threaded rod is connected with the base through a threaded rod fixer; the standard blackbody furnace platform is connected with the standard blackbody furnace protection rod; the angle adjusting device is fixedly connected with the adjusting threaded rod, and the angle adjusting device is connected with the control unit through a circuit; one side of the base is connected with one side of the standard blackbody furnace platform through a rivet, so that free rotation around a shaft is realized; the supporting legs are arranged at the bottom of the base and used for supporting the angle-adjustable platform. The control unit controls the temperature sensor calibration support to work.

The invention discloses an indoor intelligent cattle shed for breeding plateau yaks based on solar energy, which relates to the field of yak breeding and comprises: a plurality of breeding units, each of which is provided with a plurality of detection units, identification units and heating units; a control unit is used for controlling the opening quantity and ventilation direction of ventilation units based on humidity information and air quality information of an environment corresponding to the breeding unit, and for controlling the start and stop and heating power of the heating unit based on temperature information of an environment corresponding to the breeding unit and age information of yaks in the breeding unit; an intelligent recognition unit is used for performing feature recognition on image information of a cow's head, obtaining physiological features of the cow's head, judging whether the yaks in the breeding unit are sick based on the physiological features of the cow's head and the body temperature information of the yaks, and generating alarm information if the yaks in the breeding unit are sick. The invention intelligently realizes temperature and ventilation control of the cattle shed, and intelligently realizes early warning of yak illness, thereby improving the breeding effect of plateau yaks.

The invention relates to the technical field of semiconductors, in particular to a photoresist removal method and equipment, a control method and a control circuit. The removing method comprises the following steps: arranging a wafer to be processed above a heating disc in a photoresist removing chamber; the wafer to be processed is subjected to an ion implantation process; controlling the to-be-processed wafer to lift until the temperature of the to-be-processed wafer reaches a first temperature, and performing a hardened layer removal process of the photoresist; the first temperature is 5-50 DEG C lower than the transition point temperature; wherein in the hardened layer removal process, the wafer temperature corresponding to the fastest change of the photoresist removal rate is the transition point temperature. According to the method, the problem of explosion caused by too high etching rate in the hardened layer removal process can be avoided, the problem of too low etching rate can also be avoided, the uniformity in the hardened layer removal process can also be ensured, and the yield and the productivity in the photoresist removal process after ion implantation are improved.

The invention relates to the field of trace nano material property measurement and chemical analysis, in particular to a system and a method for measuring peak oxidation temperature and weight of a trace carbon nano material. The measuring system is composed of a catalytic reactor, a micro-flow online mass spectrometer and the like, and the detection method is used for analyzing the peak oxidation temperature and weight of a gas product by measuring the gas product generated by the reaction of the carbon nanomaterial and oxygen. The method comprises the following steps: putting a certain amount of carbon nanomaterial into a catalytic reactor, heating or preserving heat in an oxygen-containing atmosphere, transmitting a gaseous reaction product through a micro-flow gas pipeline, carrying out online detection by using a micro-flow online mass spectrometer, and analyzing the carbon dioxide concentration in the gaseous reaction product by analyzing the temperature corresponding to the maximum value of the carbon dioxide concentration and the accumulated value of the mole number of the carbon dioxide. And accurate measurement and analysis of the peak oxidation temperature and weight of the nano material are realized. According to the invention, the peak oxidation temperature of the carbon nanomaterial within the weight range of 10 micrograms to 10 milligrams can be measured, and the weight of the carbon nanomaterial can be evaluated.

The utility model provides an aluminum plastic cover riveting preheating temperature control device which comprises an installation frame fixed on a feeding disc of a riveting device and a temperature sensor fixed on one side of the installation frame, the output end of the temperature sensor faces an edge notch of the feeding disc, a heating cylinder is fixedly arranged in the installation frame, the side wall of the heating cylinder is fixedly connected with a communicating pipe, and the communicating pipe is connected with a temperature sensor. The top end of the heating cylinder is connected with an air inlet pipe. And the effect of improving the riveting yield and the riveting efficiency of the aluminum plastic cover is achieved.

The invention discloses an IGBT module temperature and stress test device and method for generating heat by power circulation. The device comprises a DC stable power supply, a time delay relay, a micro circular high temperature ceramic rapid heating sheet, an IGBT module, an oscilloscope, an infrared camera, a right-angle strain rosette, a dynamic strain gauge and a PC. The method uses a time delay relay to connect a power supply and the micro circular high temperature ceramic rapid heating sheet, and utilizes the time delay circulation function of the time delay relay to provide different voltages to the micro circular high temperature ceramic rapid heating sheet in a cycle, so as to achieve the purpose of generating heat for the IGBT module in a cycle. The temperature of the IGBT module at this time can be accurately measured by the infrared camera, so as to provide a basis for subsequent stress-strain experiments at a certain temperature. The IGBT module is connected to the dynamic strain gauge by a right-angle strain rosette, so as to measure the strain of the measured position in real time, and the strain result is displayed on the PC. The temperature and stress test of the IGBT module under different power load loading conditions can be realized by utilizing the experimental data.

The invention belongs to the technical field of solid oxide fuel cells, and discloses a solid oxide fuel cell half cell and a preparation method thereof. The problem of bending deformation of SOFC cells produced in the prior art is solved. Comprising the steps that (1) an anode supporting layer green body, an anode functional layer green body and an electrolyte layer green body are prepared respectively, a solvent F1 system is adopted for preparing the anode supporting layer green body, a solvent F2 system is adopted for preparing the anode functional layer green body, a solvent F3 system is adopted for preparing the electrolyte layer green body, and F1, F2 and F3 are solvent systems with different compositions or proportions; (2) stacking, forming layers and sintering; f1, F2 and F3 respectively and independently comprise at least one of ethanol, propanol, isopropanol, butanol, butanone, terpilenol, butyl acetate, toluene and xylene, and the three components or ratios are different. The bending degree of the half battery piece can be effectively reduced, and the production yield is improved.