231results about How to "Improve temperature measurement accuracy" patented technology

The invention relates to the technical field of optical elements, systems or instruments, in particular to a temperature field testing method based on combination of colorimetric temperature measurement and multispectral imaging, and solves the technical problems of low temperature field temperature measurement reconstruction precision and low temporal-spatial resolution of an existing temperature measurement method. The method comprises the following steps: determining a spectral range and a temperature measurement range of a temperature field of a solid engine combustion chamber by utilizing an LIBS (Laser-induced Breakdown Spectroscopy) technology, coupling and packaging a multispectral optical filter and a CMOS (Complementary Metal Oxide Semiconductor) sensor, calibrating a multispectral camera by utilizing a blackbody furnace, and acquiring a spectral image of the temperature field by utilizing the multispectral camera. And obtaining a two-dimensional temperature field of the combustion chamber of the solid engine by using a colorimetric temperature measurement method, and performing comprehensive evaluation. According to the invention, multispectral information of the solid propellant combustion chamber flame can be obtained, and high space-time resolution detection of the two-dimensional temperature field of the solid engine combustion chamber is realized.

The invention provides a radiation temperature measurement device and method based on dynamic calibration, and relates to the technical field of radiation temperature measurement. The device is used for measuring temperature information of a hot end component and comprises a first lens group, a temperature measuring probe, a second lens group, an optical switch, an optical filter, a photoelectric detector, a pre-amplifier, an acquisition monitoring system and a controller, after passing through the optical filter, a corresponding temperature measurement characteristic wavelength is obtained; the photoelectric detector is of a thermoelectric refrigeration type, the temperature measurement characteristic wavelength is incident to the photoelectric detector for detection to obtain a corresponding electric signal, the electric signal is amplified into a collectable voltage signal through the pre-amplifier, and the collection monitoring system carries out collection and post-processing to obtain temperature information of the hot end component; the optical switch is arranged at the front end of the optical filter and is controlled to be turned on or turned off through the controller, and the controller is controlled by the collecting and monitoring system.

The invention provides a magnetic resonance temperature measurement imaging method. According to the method, based on proton resonance frequency temperature dependence, phase self-calibration echoes are added in a temperature measurement imaging sequence; the phase unwrapping of the spatial dimension is carried out on the phase image by using the prior art, and the phase unwrapping of the time dimension is carried out on the temperature measurement phase image by using the self-calibration phase image. According to the method provided by the invention, the problem of reference basis failure of magnetic resonance temperature measurement imaging can be solved, the temperature measurement precision is not lost, and additional temperature measurement tools and intraoperative waiting time are not increased. According to the method provided by the invention, the temperature measurement precision can be improved by prolonging the echo time TE. The method provided by the invention can be used for thermal ablation treatment guided by magnetic resonance.

The invention discloses a temperature measurement system and method based on a direction-adjusting excitation control Wheatstone bridge, and belongs to the technical field of sensor signal precision measurement. According to the invention, the problem of temperature measurement deviation caused by non-linear and asynchronous sampling error output by a traditional temperature measurement circuit based on a Wheatstone bridge and offset voltage output by a differential amplification circuit is solved. According to the invention, a bridge arm resistance value optimization strategy is used for suppressing output nonlinearity, the complexity of a temperature measurement value calculation model is reduced, and the precision temperature measurement reliability is improved; based on an analog-to-digital converter synchronous sampling and direction-adjusting excitation control method, asynchronous sampling errors caused by asynchronous signal sampling are eliminated, and measurement deviation caused by inherent output offset voltage of a differential amplifier is counteracted. The output nonlinearity of the temperature measurement circuit can be well inhibited, and asynchronous sampling errors and measurement deviations are eliminated. The method can be applied to the field of temperature measurement based on the Wheatstone bridge.

The invention relates to the field of temperature detection, and discloses a method for improving the in-furnace temperature test accuracy of a blank, which comprises the following steps: forming a plurality of test holes in the blank; mounting the mounting sections of the plurality of thermocouples into the plurality of measuring holes respectively, and filling the plurality of measuring holes with a filling medium; connecting the connecting ends of the plurality of thermocouples with a furnace temperature tracker, and then testing; wherein the multiple measuring holes comprise deep holes with the hole depth larger than or equal to a preset threshold value, and the step of installing the installation section into the deep holes comprises the steps that the installation section is bent, and the first end and the second end of the installation section abut against the bottom of the deep holes and the upper portions of the side walls of the deep holes respectively; wherein the first end of the mounting section is a temperature measuring end. According to the invention, the thermocouple can be simply and effectively fixed in the measuring hole, so that the temperature measurement accuracy and reliability can be improved.

The embodiment of the invention provides an infrared equipment calibration method and device, equipment and a storage medium, and relates to the technical field of infrared thermal imaging. Comprising the following steps: acquiring an actually measured gray value obtained by measuring a plurality of standard blackbody radiation sources with different preset temperature values by an infrared device to be calibrated; determining a standard gray value corresponding to each preset temperature value through a standard curve corresponding to the to-be-calibrated infrared equipment; the standard curve is used for representing a corresponding relation between the temperature value and a standard gray value; based on a standard gray value change rate corresponding to each preset temperature value in the standard curve, determining a weight corresponding to each preset temperature value; the change rate of the standard gray value is negatively correlated with the weight; determining a gain parameter and a bias parameter based on the actually measured gray value, the standard gray value and the weight corresponding to each preset temperature value; and performing temperature measurement calibration on the to-be-calibrated infrared equipment based on the gain parameter and the bias parameter.

The invention discloses a module high and low temperature test system based on a semiconductor, and the system comprises a hardware module which is used for controlling the temperature, transmitting data, and receiving an instruction; a control algorithm unit; the control algorithm module comprises a PID control module which optimizes temperature control by adjusting proportional, integral and differential parameters and improves the stability and response speed of the system by using a self-adaptive PID or fuzzy PID method. High temperature measurement precision can be realized by using a high-sensitivity sensor, errors can be reduced, control accuracy can be improved, novel technologies such as an MEMS actuator and the like are adopted, the temperature can be rapidly adjusted, the rapid change environment requirement can be met, meanwhile, through fuzzy logic and a reinforcement learning algorithm, the system can automatically adjust a control strategy according to real-time data, and the system is suitable for large-scale popularization and application. The method adapts to different working environments and conditions, combines edge calculation and deep learning technologies, can predict temperature changes, and takes measures in advance.

The invention relates to a temperature sensor for a ship engine, and the temperature sensor comprises a metal protection outer tube, a thermal resistor element, a high-temperature-resistant wire and a high-temperature signal cable, the metal protection outer tube is formed by sequentially connecting a first metal tube, a variable cross-section sleeve and a second metal tube, and the end part of the second metal tube is welded with a sealing connection end; the thermal resistance element is arranged at the end part of the first section of metal tube; the high-temperature-resistant wire extends to the sealing connecting end from the first section of metal pipe; one end of the high-temperature-resistant wire is welded with the thermal resistor element, the other end is welded with one end of the high-temperature signal cable, and the welding point is located in the sealing connection end; the interior of the temperature measuring end is filled with an inorganic insulating material. High-temperature inorganic glue is filled in gaps among the leads of the thermal resistor element and gaps among the high-temperature-resistant wires; and the sealing connecting end is filled with high-temperature insulating sealant. The sensor can bear vibration, impact, bumping, inclined swinging and the like with a certain margin, and has good mechanical performance.

The invention discloses a method and a system for measuring transient temperature characteristics of a resistive load sample. The method comprises the following steps: keeping a light source on normally, adjusting a sample to different temperatures and collecting corresponding gray values, and drawing an average gray value-temperature curve graph of corresponding areas of different materials of the sample; a material with the maximum linear fitting slope absolute value of different average gray value-temperature curve graphs is selected, and a heat reflection calibration coefficient is calculated; applying low-frequency periodic square wave excitation to the to-be-detected sample, and obtaining the steady-state temperature change of the sample by using a camera; searching an area with the maximum steady-state temperature change of the sample, and marking the area as a hot spot area; adjusting the light source intensity to enable the photoelectric detector to be in a linear dynamic range; high-frequency periodic square wave excitation is applied to a to-be-detected sample, and a photoelectric detector is used for collecting transient temperature changes of a hot spot area of the sample. According to the invention, the measurement error of the light source caused by a pulse working mode is avoided, and the time resolution and the measurement accuracy of transient temperature characteristic measurement are improved.

The invention relates to the technical field of medium-frequency induction heating furnaces, in particular to a medium-frequency induction heating furnace body, a furnace body manufacturing method anda temperature control method. The medium-frequency induction heating furnace body comprises a furnace lining, a material channel allowing a blank to pass through is formed in the middle of the furnace lining, and an induction coil which extends in axial direction of the material channel and is spirally wound on outer side of the material channel is arranged in the furnace lining; and a pluralityof temperature measuring holes are formed in the side wall of the furnace lining in the axial direction of the furnace lining at intervals, the temperature measuring holes are formed in the radial direction of the furnace lining and penetrate through the side wall of the furnace lining, and the temperature measuring holes are located at the intervals between every two adjacent turns of coils of the induction coil. The invention further provides a manufacturing method of the medium-frequency induction heating furnace body and a temperature control method of the medium-frequency induction heating furnace. According to the furnace body, the temperature measuring holes are formed in the side wall of the furnace body for temperature measurement instead of adopting the temperature measurement mode at a discharge port so that the temperature measurement accuracy can be improved.

The invention relates to a method for improving temperature measurement performance of an aero-engine, and the method comprises the following steps: carrying out the response characteristic analysis of a temperature sensor, and obtaining a response error of the temperature sensor in a response process; performing temperature measurement deviation analysis on the temperature sensor to obtain the temperature measurement deviation of the temperature sensor; performing structure optimization on the temperature sensor by taking the time constant, the response error, the temperature measurement deviation and the reliability of the sensor as performance indexes to obtain the temperature sensor with the optimal structure; and establishing a dynamic parameterization compensation model based on the response error and the temperature measurement deviation of the temperature sensor with the optimal structure, and completing the self-adaptive compensation of the measurement error through the dynamic parameterization compensation model. The overall temperature measurement performance of the aero-engine can be improved.

The invention provides a cable joint temperature detection method and device, electronic equipment and a storage medium, and belongs to the technical field of optical fiber temperature measurement, and the method comprises the steps: determining a target collection duration based on the attributes of a cable joint and the characteristics of a fluorescent material, and determining a target collection frequency based on the attributes of the cable joint and the characteristics of the fluorescent material; the fluorescent material is a fluorescent substance in an optical fiber probe of the optical fiber temperature measurement sensor; performing temperature measurement on the cable joint based on the target acquisition duration and the target acquisition frequency to obtain a first temperature; and calibrating the first temperature based on the environment information of the cable joint to obtain a second temperature of the cable joint. According to the invention, the temperature measurement error of the cable joint can be reduced, and the temperature measurement accuracy is improved.

The utility model discloses a thermometer, which relates to the technical field of body temperature measuring instruments, and comprises an infrared forehead thermometer and a distance limiting mechanism, a handle of the infrared forehead thermometer is provided with a temperature measuring button, the distance limiting mechanism comprises a bottom plate, the bottom plate is arranged on the top surface of the infrared forehead thermometer, the top surface of the bottom plate is provided with a rotating seat, the rotating seat is rotatably connected with a rotating shaft, and the rotating shaft is connected with the infrared forehead thermometer. The side of the rotating shaft is connected with one end of the distance limiting rod, and the end of the rotating shaft is connected with a driving structure used for driving the rotating shaft to rotate. According to the utility model, the temperature measurement distance can be ensured and the temperature measurement accuracy is improved.

The invention discloses a multi-node power grid wireless temperature measuring device and a temperature measuring method, and relates to the technical field of power grid wireless temperature measurement. The multi-node power grid wireless temperature measuring device comprises two racks, driving mechanisms used for driving the device to move are installed on the two racks, and side frames are fixedly installed on the sides, away from the racks, of the driving mechanisms; one side of the side frame is fixedly provided with a monitoring mechanism used for preliminarily measuring the temperature of the line, the two ends of the rack are both provided with clamping mechanisms used for conducting environment isolation temperature measurement on the line, and one side of the monitoring mechanism is provided with a processing mechanism used for processing the surface of the line. Through the arrangement of the monitoring mechanism, the cable temperature state can be timely and roughly fed back, a temperature abnormal area can be rapidly positioned, the long-distance cable temperature measurement process is effectively shortened, rapid testing is achieved, the temperature measurement process is accelerated in the process, the cable maintenance efficiency and accuracy are improved through real-time monitoring, and the service life of the cable is prolonged. And the operation safety and stability of the cable are further ensured.

The invention discloses a thermistor and thermocouple compatible high-precision temperature measurement method, relates to a high-precision temperature measurement method, and constructs a hardware temperature measurement circuit. The temperature measuring circuit comprises a temperature sensor, a digital-to-analog conversion chip, a digital isolation chip and a single-chip microcomputer. The temperature sensor is composed of a thermistor and a thermocouple which are connected to the two ends of the digital-to-analog conversion chip respectively. The single-chip microcomputer is responsible for taking out temperature data in the digital-to-analog conversion chip and then taking out corresponding temperature data by matching different data processing algorithms according to the types of accessed sensors, a cold junction compensation part related to the thermocouple can be realized by using an internal temperature sensor of the digital-to-analog conversion chip, and the thermocouple and the thermal resistor are adaptive to different precision and range scenes; according to the compatible temperature measurement method provided by the invention, convenience is provided for industrial scene use, the same interface can be compatible with different types of sensors, disconnection detection and power frequency suppression functions are provided, and the compatible temperature measurement method can be applied to complex industrial high-precision temperature measurement scenes, and is high in precision and strong in anti-interference capability.

The invention discloses a calibration method of a multi-measuring-point fiber grating temperature measurement sensor, and belongs to the technical field of temperature sensor calibration. The calibration method comprises the following steps: firstly, arranging a test environment calibrated by a multi-measuring-point fiber grating temperature measurement sensor, and setting a plurality of calibration temperature points; starting the incubator, keeping the temperature for a set time length when the incubator reaches each calibration temperature point, and recording the temperature indicating value of the thermocouple mounted on each fiber grating temperature measurement sensor and the wavelength value of the connected fiber grating temperature sensor under each calibration temperature line; and the process is cycled for multiple times, and according to the corresponding numerical values of each fiber grating temperature measurement sensor under each calibration temperature line recorded in a certain cycle, a function relation between the thermocouple temperature corresponding to each fiber grating temperature measurement sensor and the wavelength of the fiber grating type temperature sensor is obtained, and the function relation is used as a calibration curve of each fiber grating temperature measurement sensor. According to the invention, errors caused by non-uniformity and instability of the temperature in the calibration temperature box in the calibration process can be reduced.

This invention discloses a downconversion fluorescence thermometry method based on bilinear mode, implemented using a hardware system. The hardware system includes a 280nm light-emitting diode, two convex lenses, and a Tb... 3+ :Cs2Na 0.9 Ag 0.1 The system comprises InCl6 temperature-sensing material, a grating spectrometer, an oscilloscope, a signal generator, a computer, and a thermostat. The specific implementation steps are: signal excitation and acquisition; temperature calibration; actual temperature measurement; and high measurement accuracy: VPR mode linear correlation coefficient R² ≥ 0.998, FL mode linear correlation coefficient R² ≥ 0.992, avoiding measurement errors introduced by the exponential bias or correction term of traditional FIR technology, thus fundamentally improving temperature measurement accuracy.

The invention provides an integrated temperature control fiber-optic gyroscope chip, method and system. The fiber-optic gyroscope chip integrated with temperature control comprises a signal transceiving unit, a gyroscope modulation unit, an optical signal processing unit, an optical fiber coil interface unit and an on-chip temperature-sensitive micro-ring resonant cavity, and the signal transceiving unit is used for forming an optical signal according to a light source; the on-chip temperature-sensitive micro-ring resonant cavity is used for forming a first transmission spectrum according to the optical signal; the gyro modulation unit is used for generating a modulation electric field in response to the modulation driving signal so as to perform phase modulation on the optical signal; the optical signal processing unit is used for performing polarization and beam splitting on the modulated optical signal to form a first path of optical signal and a second path of optical signal; and the optical fiber coil interface unit is used for transmitting the first path of optical signal and the second path of optical signal to a polarization maintaining optical fiber coil to form a gyroscope interference optical signal and outputting the gyroscope interference optical signal, so that a gyroscope detector obtains a compensated gyroscope output result according to the gyroscope interference optical signal.

This invention discloses an infrared temperature measurement correction method, apparatus, and system for three-dimensional curved surfaces. The infrared temperature measurement correction method includes: dividing the blade surface into at least two emissivity measurement regions according to the surface type of the blade being measured; acquiring the emissivity distribution of each emissivity measurement region on the blade surface at different temperatures; obtaining bidirectional reflection distribution functions for different surface types based on the projected energy of the infrared light source at different incident angles and the reflected energy received by the infrared camera at different detection angles; and obtaining the corrected measurement temperature based on the acquired emissivity distribution of each emissivity measurement region on the blade surface at different temperatures and the bidirectional reflection distribution functions for different surface types. This invention has a wide range of applications and high correction accuracy, and can be used to correct infrared temperature measurements of curved surfaces such as aero-engine turbine blades in complex environments, enabling non-contact, multi-dimensional, and online measurement of curved surfaces.

The utility model relates to a laser welding head temperature closed-loop control optical path system which comprises a bottom main supporting seat, a main supporting seat and a QBH optical fiber connector, the bottom of the QBH optical fiber connector is installed on the top of the main supporting seat through the QBH supporting seat, and the main supporting seat is installed on the bottom main supporting seat; a temperature control fixing frame is installed on the left side of the main supporting seat, a temperature control supporting frame is installed on the temperature control fixing frame, a temperature control base is installed on the temperature control supporting frame, and a temperature control probe is installed on the temperature control base and located over the molten pool. According to the novel temperature closed-loop control light path system of the welding head, the temperature control probe for measuring the temperature is vertically installed above the welding part, real-time monitoring of the welding part is achieved through the beam combiner, and the accuracy of the real-time temperature can be guaranteed to the maximum degree.

The utility model relates to the technical field of circulating fluidized bed boilers, and discloses an abrasion protection device for a boiler bed temperature measuring point, which comprises a furnace body, two vertical boxes are fixedly mounted at the top of the furnace body, the same top box is fixedly mounted at the tops of the two vertical boxes, a motor is fixedly mounted on the inner wall of the top of the top box, and a lifting mechanism is arranged between the top box and the vertical boxes; and a temperature measuring mechanism and a protection mechanism are arranged below the top box. Compared with the prior art, the device has the following advantages and effects that by arranging the lifting mechanism and the temperature measuring mechanism, the vertical position of the wear-resistant thermocouple can be adjusted, the wear-resistant thermocouple can be inserted into the center position of the bed material, and the temperature of the center position of the bed material can be conveniently measured through the wear-resistant thermocouple; and through the arrangement of the screw joint mechanism, the protection cylinder and the mounting base can be conveniently disassembled and assembled, and the purpose of conveniently replacing the protection cylinder can be achieved.

This invention discloses an insulating encapsulation structure and connection method for a probe temperature sensor, relating to the field of temperature sensor technology. The insulating connection bracket has an outer insulating and thermally conductive protective layer, and contains insulating adhesive and a temperature-sensing component. The specific implementation is as follows: an insulating layer assembly, a built-in snap-fit ​​structure within the insulating connection bracket, and an eccentric cavity for housing the temperature-sensing component. A thermistor glass body is used as the insulator. In the insulation process, direct contact between the glass body and the inner wall of the bracket reduces one useless insulating layer. The cavity formed by the end of the insulating connection bracket and the insulating layer assembly houses the temperature-sensing component. The cavity contains a clearance structure for the thermistor pins and multiple layers of insulation between the pins and the conductive copper wires. A fluid insulating adhesive is used, and then the insulating connection is cured. Finally, the encapsulation is placed inside a metal shell containing insulating adhesive and cured, thus forming multiple layers of effective insulation and sufficient safe insulation thickness between the thermistor conductive pins and the metal shell.

The invention discloses a temperature controller thermal compensation experiment method and system, and the method comprises the steps: building an environment simulation laboratory, simulating the actual working environment of a temperature controller, carrying out the analysis of the spontaneous heating influence factors of a target temperature controller, setting the experiment conditions of the temperature controller under different working conditions according to the spontaneous heating influence factors of the target temperature controller, and carrying out the simulation of the actual working environment of the temperature controller. Experiments are carried out under different experimental conditions, experimental data of a target temperature controller under a specific working condition are captured, a thermal compensation algorithm is generated according to the experimental data of the target temperature controller under the specific working condition, spontaneous heating of the target temperature controller is compensated through the thermal compensation algorithm, and the actual environment temperature is calculated. The simulation laboratory environment is constructed, the spontaneous heating characteristic of the high-power-consumption temperature controller is analyzed and compensated, the problem of temperature measurement errors caused by spontaneous heating can be effectively solved, and the temperature measurement precision of the temperature controller is remarkably improved.

This application proposes a wireless passive food temperature probe and a food processing device. The wireless passive food temperature probe includes a probe tube and a handle; the probe tube is a metal tube, and a printed circuit board, an RF chip, and a temperature sensor are disposed inside the probe tube; an RF antenna and an antenna ground wire are disposed inside the handle; the temperature sensor is connected to the RF chip, and the RF chip is connected to the RF antenna and the antenna ground wire through the printed circuit board and a shielded wire, respectively; the probe tube is connected to the handle. Through innovative wireless passive design, the operation, cost, size, and environmental adaptability problems of existing probes are comprehensively solved, providing an efficient and reliable temperature monitoring solution for the food processing field.

The application discloses a quick-mounting temperature sensor, relates to the technical field of temperature sensors, and comprises a temperature sensor main body, a mounting block integrally connected to the top end of the temperature sensor main body and a plug-in part, the plug-in part is arranged above the mounting block, one side of the mounting block is provided with an arc-shaped mounting groove, both ends of the mounting block are provided with rotating holes, one end of a first connecting rod is rotationally connected to the inside of one of the rotating holes, a fixing piece is fixedly connected to one end of the first connecting rod, the periphery of one of the rotating holes is fixedly connected with a first limiting clamping tooth piece, and a fixing hole is formed in the other end of the first connecting rod. The application can flexibly adjust the mounting angle of the quick-mounting temperature sensor, is suitable for the inclined mounting surface which is not horizontal or vertical, improves the compatibility of mounting, ensures that the temperature sensing end of the sensor always contacts the measured medium at the best angle, and improves the temperature measurement accuracy and response speed.

The invention provides a thermal infrared imager dark current compensation method and device, and the method comprises the steps: obtaining the change data of a target parameter of each pixel in a detector of a thermal infrared imager along with the change of the temperature, and generating a target corresponding relation table containing the target parameter-temperature corresponding relation of each pixel based on the change data, the target parameter-temperature corresponding relation is matched with the dark current-temperature corresponding relation; when the thermal infrared imager measures the temperature, a first target parameter generated by the dark pixel is obtained; determining the temperature corresponding to the current dark pixel in a target corresponding relation table based on the first target parameter; determining the temperature distribution of all the pixels on the detector by combining the current temperature of the dark pixel and the heat transfer characteristics of the detector and the pixels; determining a second target parameter representing the current generation of each pixel in a target corresponding relation table according to the temperature distribution; and correcting the current temperature measurement result of the pixel according to the second target parameter of each pixel.

The utility model provides a slag rake cooling water temperature and liquid level self-adjusting device, which relates to the technical field of steelmaking converters and comprises a cold water inlet pipe leading to the inside of a cooling water tank and a hot water discharge pipe arranged below the side wall of the cooling water tank and communicated with the inside of the cooling water tank, a water inlet valve is arranged on the cold water inlet pipe, and a water discharge valve is arranged on the hot water discharge pipe. The first support is provided with a liquid level sensor, the second support is provided with a thermodetector, the outer wall of the cooling water pool is provided with a control box, and the water inlet valve, the water drainage valve, the liquid level sensor and the thermodetector are all electrically connected with the control box. The cold water inlet pipe is provided with the water inlet valve, the hot water discharge pipe is provided with the water discharge valve, the liquid level sensor is arranged to measure the liquid level, and the thermometer is arranged to measure the temperature of pool water, so that the water inlet valve and the water discharge valve can be automatically controlled by the control box to act, and automatic cold water filling and hot water discharge are realized; and the water level and the water temperature in the cooling water tank are kept stable.

The invention provides an uncooled infrared sensor structure and a manufacturing method thereof, and the method comprises the steps: providing a substrate which is provided with a reading circuit, a protection layer formed on the substrate, a first connection structure and a second connection structure which penetrate through the protection layer, and an electrode layer formed on the protection layer, the electrode layer is divided into a first part electrode and a second part electrode by the isolation groove, the first part electrode is connected with the first connecting structure, the second part electrode is connected with the second connecting structure, a thermosensitive layer covering the electrode layer and the isolation groove is formed, the material of the thermosensitive layer comprises a tin-alloyed germanium material, and the thermosensitive layer is doped to form the thermosensitive layer. The thermosensitive layer is used for absorbing infrared light and then heating, and the resistance of the thermosensitive layer changes along with the temperature. The resistivity of the thermosensitive layer can be reduced by performing tin alloying on the germanium material, the temperature sensitivity and the temperature measurement precision of the thermosensitive layer are improved, and the noise level of the uncooled infrared sensor is reduced, so that the signal-to-noise ratio of the uncooled infrared sensor is improved.

The invention discloses a high-precision temperature measurement control system for a pt100 resistor. The high-precision temperature measurement control system comprises a resistor temperature measurement unit, a data real-time acquisition unit, a data transmission unit, a data storage unit, a data processing unit, an intelligent regulation and control unit and a real-time monitoring unit, the resistance temperature measuring unit is used for measuring the temperature of the object to be measured in real time; and the data real-time acquisition unit is used for carrying out real-time acquisition on data information generated by the resistance temperature measurement unit in the temperature measurement process, and belongs to the technical field of temperature measurement. Through real-time acquisition of environment temperature and humidity, air density, connecting wire parameters and real-time current and voltage multi-dimensional data and detailed analysis of the data, the system can accurately calculate and correct temperature measurement errors, and the temperature measurement precision is significantly improved. Meanwhile, the intelligent regulation and control unit automatically regulates the temperature of the temperature measurement object according to the analysis result, and ensures that the temperature measurement result meets the preset requirement.

The invention relates to a photoelectric signal conversion device and a preparation method thereof. A first wafer and a second wafer are respectively provided with a first photoelectric conversion unit and a second photoelectric conversion unit; the first wafers and the second wafers are arranged in a manner that the first photoelectric conversion unit of each first wafer corresponds to the second photoelectric conversion unit of one second wafer, and the second photoelectric conversion unit of each first wafer corresponds to the first photoelectric conversion unit of one second wafer; and after each first photoelectric conversion unit and the corresponding second photoelectric conversion unit form a sensor unit, the wafer assembly is segmented, so that a plurality of photoelectric signal conversion devices can be formed. According to the preparation method, a supporting device required by the photoelectric signal conversion device in the application process can be removed, and the temperature measurement precision can be improved while the production cost is reduced.