1907 results about "Thermistor" patented technology

The invention provides a multi-region independent temperature control intelligent frequency conversion refrigeration and preservation method and system, and relates to the technical field of refrigeration and preservation. A region division module, a temperature control module, an environment monitoring module, a data analysis module, an intelligent frequency conversion control module and a user interface module work cooperatively; fine temperature control management of different areas in the refrigeration equipment is realized, the system adopts three-dimensional laser scanning and multispectral image acquisition technologies to automatically divide temperature areas, a quantum-level precision thermistor array and an intelligent fuzzy PID controller ensure accurate temperature control, and meanwhile, humidity and air flow are monitored to optimize a storage environment, so that the temperature control efficiency is improved. The data analysis module is combined with deep learning and an association rule mining algorithm to provide decision support for frequency conversion control and realize energy consumption optimization, the user interface module provides visual operation experience, and the whole scheme improves the intelligence, accuracy and energy efficiency of refrigeration and preservation, and is suitable for various cold chain scenes.

The invention relates to the technical field of air conditioner energy-saving systems, and discloses a central air conditioner energy-saving automatic control system and method.The central air conditioner energy-saving automatic control system comprises a sensor module, a control module, a communication module, an intelligent control algorithm module, a dynamic adjusting module and an energy-saving optimization module; the sensor module comprises a temperature sensor, a humidity sensor, a CO2 sensor, an illumination sensor and an occupation sensor, the temperature sensor is used for monitoring indoor and outdoor temperatures and providing real-time data for decision making of a control system, and an NTC (negative temperature coefficient thermistor), a PTC (positive temperature coefficient thermistor) or a DS18B20 digital temperature sensor is adopted. The environment parameters are monitored in real time, the operation state of the air conditioning equipment is dynamically adjusted, the high-energy-consumption operation mode of a traditional air conditioning system is avoided, cooling / heating according to needs is achieved, energy consumption is effectively reduced, the mode is automatically switched to the energy-saving mode in the state that the number of personnel activities is small or no one exists, and therefore the effect of remarkably reducing the operation load and energy consumption can be achieved.

The invention discloses a temperature measurement method and device, equipment and a medium. The method comprises the following steps: acquiring a current resistance value of a target thermistor of a temperature sensor; a resistance temperature data set of the target thermistor is obtained, and the resistance temperature data set comprises multiple groups of resistance temperature value pairs of the corresponding relation between the temperature and the resistance; based on the resistance temperature data set, generating a piecewise polynomial fitting function corresponding to the target thermistor; and determining a current temperature value output by the temperature sensor based on the current resistance value and the piecewise polynomial fitting function. The temperature signal is processed through the fitted piecewise polynomial fitting function, so that the complexity and nonlinear change of the signal can be better adapted, the risk of over-fitting is effectively reduced, and the accuracy of the output temperature of the thermistor is improved.

The invention discloses a negative temperature coefficient medium-entropy thermistor material as well as a preparation method and application thereof. According to the invention, manganese dioxide, nickel oxide, cobalt sesquioxide, zinc oxide and copper oxide are used as raw materials, and a solid-phase reaction method is adopted to prepare the negative temperature coefficient medium-entropy thermistor material with a chemical formula of (NiX1CoX2ZnX3CuX4) Mn2O4. Wherein the values of X1, X2, X3 and X4 are 0.075-0.425, and X1 + X2 + X3 + X4 = 1. The negative temperature coefficient medium-entropy thermistor material is of a single spinel structure. The material has the hysteresis diffusion effect of medium-entropy ceramic, and by combining the coordinated optimization effect of multiple components, the material constant and the resistivity of the thermal sensitive ceramic can be remarkably reduced, and the anti-aging performance can be improved.

The invention relates to a PCB over-temperature protection device, method and equipment, and relates to the technical field of servers, the device comprises at least one control circuit and a complex programmable logic device CPLD, and the control circuit comprises a thermistor and at least one voltage comparator; the thermistor is arranged in a monitoring area of a printed circuit board (PCB) and is used for converting the temperature of the monitoring area into a target voltage signal; the forward input end of the voltage comparator receives a target voltage signal, the reverse input end of the voltage comparator receives a reference voltage signal corresponding to the voltage comparator, and the voltage comparator is used for outputting a high level when the target voltage signal is higher than the reference voltage signal; the CPLD comprises a plurality of input pins respectively corresponding to the voltage comparators, each input pin is electrically connected with the output end of the corresponding voltage comparator, and the CPLD is used for triggering over-temperature protection operation corresponding to the input pin when the high level is received through the input pin, so that the timeliness of PCB over-temperature protection is improved.

The invention discloses a temperature and pressure sensor and a manufacturing method thereof, the temperature and pressure sensor comprises a support assembly formed by an inner support and a thermistor through an injection molding process, two pin copper wires of the thermistor are welded to an insertion piece of the inner support, and a plastic supporting structure wrapping the thermistor and the inner support is formed through injection molding; one end of a PIN needle of the terminal button is connected with an external plugging port; one end of a conductive circuit of the flexible wire board is respectively welded with the PIN of the ceramic capacitor and the insertion piece of the inner bracket, and the other end of the conductive circuit of the flexible wire board is welded with the other end of the PIN of the terminal button; a through hole is formed between the support assembly and the shell, a medium makes contact with the ceramic capacitor through the through hole, the ceramic capacitor transmits a pressure signal to the outside through the flexible wire board and the end button, the thermistor senses the temperature of the medium through the plastic supporting structure, and a temperature signal is transmitted to the outside through the inserting piece, the flexible wire board and the end button. The thermistor is effectively prevented from losing efficacy due to medium impact, and meanwhile, the structural process is relatively simple and easy to assemble.

The utility model discloses a temperature and pressure sensor for a new refrigerant, which comprises a shell with a built-in pressure sensing component, the shell is externally connected with an electric appliance connector connected with the pressure sensing component, and the shell is internally provided with an NTC (Negative Temperature Coefficient) thermistor connected with the pressure sensing component; the pressure sensing component is a five-pin ceramic capacitor, two pins of the five-pin ceramic capacitor are temperature measuring pin bodies which penetrate through a ceramic capacitor body and are connected with the NTC thermistor, and a pressure-resistant protective ring which surrounds the temperature measuring pin bodies is arranged between the pressure sensing component and the shell in an extruding manner. According to the utility model, the five-pin ceramic capacitor is used as a pressure sensing component, two pins for temperature measurement are designed to be of a straight-through type structure, and the withstand voltage protection ring with a double-ring-layer withstand voltage protection structure is arranged, so that the withstand voltage capability of the temperature and pressure sensor is improved.

The application relates to a linear NTC thermistor material LaMnO3-Al2O3 and a preparation method thereof, and belongs to the technical field of NTC thermistor materials. The linear NTC thermistor material LaMnO3-Al2O3 is composed of a Mn-based perovskite LaMnO3 and Al2O3, and the mole fraction of the Al2O3 accounts for 10-30% of the total mole fraction of the system. The material is prepared by ball milling, drying, sieving, pressing and sintering of the Mn-based perovskite LaMnO3 and the Al2O3. The NTC thermistor material LaMnO3-Al2O3 has a linear resistance-temperature characteristic in the range of 30 DEG C-65 DEG C, and the linearity reaches more than 99.6%. The linear NTC thermistor material can make the working circuit more simple and the whole system operation more simple and reliable.

The invention relates to the technical field of thermistor temperature measurement, in particular to a temperature measurement detection device for a thermistor, which comprises a substrate and a handpiece, a to-be-measured resistor is mounted on the outer side wall of the substrate, an inner cylinder is fixedly connected to the end part of the handpiece, a top magnetic block is fixedly connected to the interior of the inner cylinder, and a top magnetic block is fixedly connected to the top magnetic block. A probe switching mechanism is arranged in the inner cylinder and comprises a rotating rod rotationally connected into the inner cylinder, a gear is fixedly connected to the outer side wall of the rotating rod, a push rod is slidably connected to the inner cylinder, and a rack is arranged at the end of the push rod. When an operator presses down the handheld piece, the swing arm can synchronously drive the two cleaning pieces to move towards the two sides, the cleaning brush directly cleans the surface of the resistor to be measured, extra manual cleaning is not needed, obstruction of dust residues to heat conduction is effectively avoided, and a precise foundation is laid for subsequent temperature measurement.

The invention discloses a flexible DC converter valve DC support capacitor temperature on-line monitoring method and system. The method comprises the steps of obtaining operation data of a thermistor arranged on a target capacitor wiring terminal; processing the operation data to obtain external temperature data of the target capacitor; constructing a thermal network model of the target capacitor based on the structure data and the material data of the target capacitor; performing optimization processing on the thermal network model through internal temperature data of the target capacitor acquired by the thermocouple to obtain an equivalent thermal resistance and thermal capacitance network model; inputting the obtained real-time current data of the target capacitor into the equivalent thermal resistance and thermal capacitance network model for processing to obtain internal temperature rise data of the target capacitor; and fusing the external temperature data and the internal temperature rise data to realize real-time monitoring of the temperature of the target capacitor according to a fused result. According to the method provided by the invention, real-time monitoring and accurate evaluation of the temperature of the capacitor are realized.

The invention provides a heat collecting coil temperature adjusting device and a control method thereof, and relates to the field of temperature adjusting equipment, and the heat collecting coil temperature adjusting device comprises a temperature sensor, a controller, a heating module and a cooling module. The temperature sensor is installed at a key temperature measuring point of the heat collecting coil, the measuring precision is + / -0.1 DEG C, and data are collected according to the characteristics of a thermistor and wirelessly transmitted to the controller. The controller receives the data, calculates deviation and change rate according to a preset target, and obtains a control quantity by using a fuzzy adaptive control algorithm; the heating module adjusts current according to control quantity to change power temperature rise, and the cooling module adjusts rotating speed of a water pump to control flow speed temperature reduction. The control method comprises the steps of target presetting, data acquisition and transmission, deviation and fuzzy control quantity calculation, temperature adjustment, parameter adjustment and the like, fuzzy control rule parameters are optimized through a genetic algorithm, and the problems that an existing device is insufficient in precision, complex in structure, inflexible in control strategy and the like are solved.

The invention discloses a small generator, and relates to the technical field of generators. The motor comprises a shell, double-end heat dissipation ventilation holes, a permanent magnet shielding rotor and a temperature control torsion limiting protection assembly. The grooves in the periphery of the rotor and the built-in paddles construct through airflow during rotation, so that self-dispersing heat dissipation is realized; coil temperature rise triggers a triode through a thermistor to drive a protection electromagnet, torque transmission of a fluted disc friction coupling is adjusted, and continuous derating can be achieved until zero-coupling shutdown is achieved; the permanent magnet adjusting assembly rapidly cuts off magnetic field output through an iron shell-aluminum strip-permanent magnet combination and an electromagnetic locking mechanism, and it is guaranteed that no induced voltage exists in the overhaul period.

The invention discloses a wireless charging safety monitoring management method, which comprises the following steps of: monitoring temperature, humidity, current and voltage indexes of wireless charging equipment in real time by deploying a thermistor, a digital humidity sensor and a Hall effect sensor, and preprocessing collected data, including data cleaning, format standardization and abnormal value detection and processing; a data fusion technology is utilized to integrate multi-source information, extract features and analyze correlation among data, an early warning model based on historical data training is established, multi-level early warning is triggered according to different conditions, early warning signals are timely transmitted to related personnel through multiple communication means, and once early warning is triggered, the early warning can be timely carried out. According to a preset emergency response scheme, measures including starting a cooling system, reducing output power and even cutting off a power supply and guaranteeing equipment safety are automatically taken, in addition, safety auditing carried out in each quarter is beneficial to continuously improving an early warning mechanism, and data safety of a monitoring system is guaranteed through an encryption technology and an access control and data backup mode.

The invention belongs to the field of semiconductor bridge current protection, and particularly relates to a semiconductor bridge current protection method based on a vanadium dioxide thick film thermistor. Firstly, copper, nickel and gold interdigital electrodes are deposited and grown on an aluminum oxide ceramic substrate, then a methanol solution of vanadyl acetylacetonate is sprayed on the surface of the heated interdigital electrode, a vanadium dioxide thermistor device is obtained, the vanadium dioxide thermistor device is connected with a semiconductor bridge in parallel, and current protection of the semiconductor bridge thermistor is achieved. Vanadium dioxide with a single valence state can be synthesized by adjusting the synthesis method and process, M-phase vanadium dioxide is synthesized on the interdigital electrode in one step, the vanadium dioxide prepared by the method avoids the tedious process that vanadium dioxide powder is firstly prepared and then transplanted to the surface of the interdigital electrode, and the preparation method is simple and convenient to operate. And the vanadium dioxide can be more stably combined on the surface of the interdigital electrode.

The invention relates to the technical field of electronic paste, in particular to copper electrode paste for an NTC thermistor and a preparation method and application of the copper electrode paste. A copper electrode slurry for an NTC thermistor comprises copper powder, an inorganic glass binder, an organic carrier and a dispersant, the inorganic glass binder comprises CuO and NiO, and the organic carrier comprises a polymer thickener. The copper electrode slurry can be coated on the surface of an NTC thermistor ceramic substrate through a silk-screen printing method, can be used as a metallized conductive layer after being sintered in nitrogen, is used for temperature measurement, temperature compensation, temperature control components and the like, and is wide in application. The copper electrode slurry for the NTC thermistor provided by the invention can be sintered in nitrogen at 550-650 DEG C, and has the advantages of wide sintering interval, good sintering appearance, excellent welding performance and strong adhesive force. After sintering, the ohmic contact is good, so that the prepared NTC thermistor can truly reflect the resistance value of a substrate, and the phenomenon of ion migration is avoided.

The embodiment of the invention provides a hydrogen purity detection method and device, equipment and a storage medium. Comprising the steps that sample gas and to-be-detected hydrogen are obtained, a Wheatstone bridge circuit is constructed based on the sample gas and the to-be-detected hydrogen, and the circuit comprises two fixed resistors and two thermistors; applying heat to the thermistor, and obtaining a resistance change value of the thermistor and a circuit output end detection value; and detecting the purity of the to-be-detected hydrogen according to the resistance change value and the detection value. The hydrogen purity is detected by constructing the Wheatstone bridge circuit and utilizing the thermal response difference of the thermistor to the sample gas and the hydrogen to be detected, and tiny resistance change can be captured, so that the detection precision and accuracy are improved. Based on a stable circuit principle and accurate resistance measurement, interference of external factors is reduced, and a detection result is more reliable. A resistance change value and a circuit output end detection value can be rapidly obtained, real-time detection of the purity of hydrogen to be detected is achieved, and a detection result is provided in time.

The invention provides a dual-wavelength smoke temperature composite fire detector and a detection method. The dual-wavelength smoke temperature composite fire detector comprises an infrared transmitting device, a blue light transmitting device, a 1 # light receiving device and a 2 # light receiving device, a thermistor is also included; optical axes of the infrared transmitting device, the blue light transmitting device, the 1 # light receiving device and the 2 # light receiving device are intersected at one point, the 1 # light receiving device receives forward scattered light of smoke particles to the infrared transmitting device and backward scattered light of the smoke particles to the blue light transmitting device, and the 2 # light receiving device receives backward scattered light of the smoke particles to the infrared transmitting device; and forward scattering light of the smoke particles to the blue light emitting device; the thermistor obtains environment temperature information; and identifying the type of the smoke according to the forward and backward scattering characteristic data of the smoke under the dual wavelengths and the environment temperature. According to the invention, functions of smoke detection and temperature detection are combined, and accuracy and reliability of fire detection are greatly improved by monitoring fire characteristic parameters of smoke and temperature at the same time.

The invention relates to the technical field of automobile heat management, in particular to a multi-loop integrated heat management system and method for an electric automobile. Comprising a first electronic water pump, a second electronic water pump, a refrigerating device, a first temperature sensor, a second temperature sensor, a pressure sensor, a third temperature sensor, a fourth temperature sensor, a fifth temperature sensor, a first pressure temperature sensor, a second pressure temperature sensor, a first electronic expansion valve, a second electronic expansion valve, an evaporator, a fan and a compressor. According to the system, on the basis of an existing whole vehicle air conditioning system, an air-cooled condenser is replaced with the water-cooled condenser, a three-way valve, an integrated battery, the motor, the controller of the motor and a passenger compartment heat management system are removed, the motor is comprehensively utilized for preheating, the energy utilization rate is increased, and the energy consumption is reduced. The endurance mileage of the whole vehicle is improved, and the complexity of the system is reduced.

The invention provides a lithium ion battery control method and device based on temperature regulation and control, and relates to the field of data processing. The method comprises the following steps: acquiring temperature measurement data sent by a thermistor and an infrared temperature sensor for a lithium ion battery; performing data processing on the temperature measurement data to obtain current temperature data; inputting the current temperature data into a preset neural network model to generate predicted temperature data; acquiring temperature error data of the lithium ion battery; generating a temperature regulation and control mechanism according to the predicted temperature data and the temperature error data; and controlling a temperature control assembly corresponding to the lithium ion battery to carry out temperature regulation and control according to the temperature regulation and control mechanism. By implementing the technical scheme provided by the invention, the temperature of the lithium ion battery can be conveniently and accurately regulated and controlled.

The utility model provides a fault simulation training device for an overheat protection circuit of a civil aviation air conditioning component, comprising a stand body, a central console, and an air conditioning component overheat protection fault simulation circuit module comprising a dark box and a circuit panel; the dark box is connected to the central console in communication; the dark box includes an air conditioning component overheat protection fault simulation circuit, which includes a DC power supply, a thermal relay, a thermistor module, a reset switch module, and an overheat indication module; the DC power supply is connected to one end of the thermistor module via a coil of the thermal relay, the other end of the thermistor module is grounded, the reset switch module and the overheat indication module are respectively connected to the first make contact and the second make contact of the thermal relay; the circuit panel is provided with a connection schematic diagram corresponding to the fault simulation circuit and a plurality of fault measurement holes. The utility model can simulate various circuit fault points in the air conditioning component overheat protection fault simulation circuit module, and realize direct measurement of circuit faults.

A connector for connecting a NTC (negative temperature coefficient) thermistor is disclosed. The connector comprises an insulating body and a conductive terminal. The insulating body has a receiving hole therein. The conductive terminal has a connecting portion extending outward. The connecting portion extends out of the insulating body. The connecting portion has a recess for a NTC thermistor to be embedded and attached to the recess, such that the NTC thermistor can detect the temperature inside the connector in time. Thus, the power can be cut off in time to avoid irreversible consequences of fire, and the NTC thermistor can be mounted and operated more easily.

The invention relates to the field of aerospace thermal control, in particular to a star sensor light shield based on foam carbon and phase change materials, which comprises a foam carbon main body, and two phase change materials with different melting points are filled in pores of the foam carbon main body; the graphene film is co-cured on the outer surface of the foam carbon main body and completely covers the outer surface of the foam carbon main body; the heating sheets are adhered to the outer surface of the graphene film in the circumferential direction of the foam carbon main body to form different heating areas; the thermistors are adhered to the positions, corresponding to the heating areas, of the outer surface of the graphene film; the outer surface of the graphene film is covered with the multi-layer heat insulation assembly; and the temperature controller is used for adjusting the output power of the heating sheet by adopting a self-adaptive temperature control algorithm according to the temperature data acquired by the thermistor and the state of the phase change material, and controlling the temperature of the star sensor light shield within a preset temperature range. The direct solar radiation heat flow on the light shield can be effectively inhibited and dredged, and the high thermal stability control of the light shield is realized.

The invention discloses a power type negative temperature coefficient thermistor and method for suppressing surge current, and relates to the technical field of negative temperature coefficient thermistors, the thermistor comprises a core body and pins, the pins are respectively arranged on electrodes on two sides of the core body by adopting a multi-contact-surface structure, and the pins are arranged on the two sides of the core body. The core body is made of a Mn-Co-Ni-La oxide with a nano composite gradient structure; the Mn-Co-Ni-La oxide with the nano-composite gradient structure determines the upper limits of core capabilities such as surge suppression, wide temperature stability and low power consumption of the thermistor, and the redesign of the pin is the key of performance transfer, so that the electrical properties (low contact resistance and high surge tolerance) of the Mn-Co-Ni-La oxide with the nano-composite gradient structure are not counteracted by structural defects; the arrangement of the bracket prevents the Mn-Co-Ni-La oxide with the nano-composite gradient structure from losing the effect due to heat accumulation and physical damage through thermal management and mechanical protection, and the three components supplement one another and cooperate with one another, so that the performance of the thermistor of the Mn-Co-Ni-La oxide with the nano-composite gradient structure is guaranteed.

The embodiment of the invention provides a temperature detection circuit and method and electronic equipment, and the circuit comprises a temperature detection module which comprises a detection capacitor; the detection capacitor is used for generating a corresponding capacitance value according to the internal temperature of the electronic equipment; the conversion module is connected with the detection capacitor, and the conversion module is used for controlling the detection capacitor to charge and discharge repeatedly under the corresponding capacitance value and outputting a square wave signal according to the charge and discharge state; and the control module is connected with the conversion module and is used for acquiring the corresponding internal temperature according to the square wave signal. According to the electronic equipment, the detection capacitor is used for replacing a thermistor or a temperature sensor in an existing scheme to detect the temperature of the electronic equipment, and the detection capacitor has a direct current blocking effect, so that quiescent current cannot be generated, and the effect of reducing static power consumption can be achieved.

The invention discloses a semiconductor laser double-layer temperature control system, which is characterized in that firstly, digital PID temperature control is carried out on an external heat sink of a laser, the set voltage of an outer thermistor and an outer slide rheostat is converted by an ADC conversion circuit and then is sent to an STM32, and control information is sent to a DAC conversion circuit after digital PID operation; and the DAC conversion circuit outputs a control signal to a CTLI pin of the MAX1978 after analog-to-digital conversion, and generates a driving current to control an outer TEC, thereby realizing coarse stabilization of the external temperature of the laser. The inner layer adopts a simulation PID control mode, an inner layer MAX1978 chip reads voltage values of a thermistor and a slide rheostat in the laser and then carries out simulation PID network operation, current is output to drive a TEC in the laser, and therefore high-stability temperature control of the laser is achieved.

The invention relates to the technical field of lasers, and discloses a laser temperature adjusting method and device, and the method comprises the steps: determining a second thermistor temperature based on a predetermined temperature compensation coefficient, a first environment temperature, a second environment temperature and a first thermistor temperature, the temperature of the thermistor at the second environment temperature is adjusted to be the second thermistor temperature; wherein the process of predetermining the temperature compensation coefficient comprises the following steps: carrying out a wavelength change test on the laser chip at a first preset temperature and within a preset current range, and determining wavelength change data corresponding to the laser chip; and calculating according to the first relation of the laser chip wavelength along with the change of the environment temperature, the wavelength change data, the temperature tuning coefficient and the test environment temperature change data to obtain a temperature compensation coefficient. Therefore, a temperature compensation coefficient is introduced to counteract the influence of ambient temperature fluctuation on the actual temperature of the laser chip, and the output wavelength stability of the laser is effectively improved.

The invention relates to a metallization layer for a PTC semiconductor ceramic for at least partially coating the surface of the PTC semiconductor ceramic, which contains at least one functional layer, wherein the at least one functional layer serves for current distribution, wherein the porosity of the at least one functional layer is less than 5%, as well as a method for applying the metallization layer to a PTC semiconductor ceramic, a PTC thermistor which has this metallization layer, and the use thereof.

The utility model particularly relates to a tile-shaped heating device, which comprises a tile-shaped heating sheet body, an NTC (Negative Temperature Coefficient) thermistor and a lead, the tile-shaped heating sheet body comprises a tile-shaped ceramic outer layer, a tile-shaped ceramic inner layer and a circuit layer, and the circuit layer is arranged between the tile-shaped ceramic outer layer and the tile-shaped ceramic inner layer; the lead is arranged at one end of the tile-shaped ceramic outer layer and is connected with the line leading-out end; and the NTC thermistor is arranged on the outer side surface of the tile-shaped ceramic outer layer. The tile-shaped ceramic inner layer can be well attached to the surface of the battery, so that the tile-shaped heating sheet body is high in heating efficiency, efficient and energy-saving; the lead is arranged on the tile-shaped ceramic outer layer, so that the connection with an external power supply is facilitated, and the fitting degree between the tile-shaped ceramic inner layer and the battery is not influenced; the NTC thermistor is arranged on the outer surface of the tile-shaped ceramic heating sheet body, temperature sensing is more accurate, temperature feedback of a compensating circuit is more accurate and rapid, real-time temperature can be effectively fed back, external temperature control equipment can conduct temperature control according to the fed-back actual temperature, and using is safer and more reliable.

A nonlinear crystal flexible clamping and temperature control device comprises a clamping seat, a top face clamping block, a side face clamping block, a stud, a compression spring, a nut, a window mirror pressing ring, a wave spring, a window mirror gasket, a window mirror, a window mirror limiting block, a nonlinear crystal, silicon rubber, a thermistor and a ceramic heating piece. The flexible clamping device exerts pre-tightening force on the nonlinear crystal in the horizontal direction and the vertical direction through the compression spring, and meanwhile flexible clamping of the nonlinear crystal is achieved in a silicone rubber dispensing fixing mode. The temperature control device achieves accurate control over the temperature of the nonlinear crystal in the mode that a thermistor collects temperature signals and a ceramic heating piece heats a clamping base. The flexible clamping and temperature control device disclosed by the invention has the characteristics of performing thermal expansion compensation on the nonlinear crystal, being high in mechanical resistance and temperature control precision, uniform in crystal heat distribution and the like.

The invention discloses a thermistor mounting method and related equipment. The thermistor mounting method comprises the following steps: applying micro-power alternating bias excitation to a thermistor to obtain cold-state thermal resistance reference data; mounting a thermistor on the surface of the solder paste, collecting real-time resistance data in a temperature rise process, and performing normalized difference according to cold-state thermal resistance reference data to obtain a normalized dynamic resistance curve; performing derivative continuity and extreme value distribution analysis on the curve to obtain a wetting connectivity index; when the wetting connectivity index reaches a preset threshold value, executing second-order extreme value spacing analysis to obtain interface heat flux density distribution, calculating an interface thermal resistance dispersion vector field, and adjusting the transmission chain speed and furnace chamber airflow parameters according to the interface thermal resistance dispersion vector field; and a backtracking dynamic resistance curve is obtained in the cooling process, and the backtracking dynamic resistance curve and the standardized dynamic resistance curve are differentiated to obtain a curing quality factor. According to the invention, real-time identification in a defect germination stage and instant correction in a solder solidification window stage in a thermistor mounting process can be realized, and the mounting quality and reliability are improved.