634results about How to "Temperature monitoring" patented technology

The present invention is an automatic equalizing charge device which uses discharging network formed by MOS tube connecting with power resistance in series to replace power switch and bypass flow network formed by it to execute the automatic equalizing charge for series battery group in quick and safe way with in existing equalizing charge technique including series battery group waiting for charge, real time collecting and isolation circuit for battery voltage signal, main control circuit board, contravariant charging power source, patrol inspection and indication circuit of battery voltage,temperature transducer, isolation driving circuit, power source and bypass flow network formed by it.

The invention provides a friction and abrasion tester for reciprocating piston ring-cylinder liner. The invention relates to the technical field of mechanism friction and abrasion, in particular to a friction and abrasion tester for reciprocating piston ring-cylinder liner as a friction paring element practically applied in an internal-combustion engine. A motor driven crankshaft connecting rod mechanism of the tester moves in linear reciprocation through a slide block and a guide sleeve of a guide mechanism, a loading system adopts extrusion-high strength bolting structure to change the pressure from a piston ring of the high strength bolting to the cylinder liner, a lubricator and an oil collector of a lubricating device are positioned on the loading mechanism corresponding to the position of the cylinder liner, sensors of a friction tester and a temperature measurement and a control device are connected to a data collecting card of a data collecting and monitoring device and a computer through interfaces. The invention adopts the practically applied piston ring-cylinder liner of an internal-combustion engine as a friction paring element, load, speed, temperature, lubricant supply experimental parameters can be changed; the invention can monitor temperature, friction experimental data and process experimental data.

The invention relates to a method and a device for restraining and preventing thermal runaway of a lithium ion battery. According to the method, a liquid inert gas is utilized to perform spraying refrigeration and fire fighting on a faulted lithium ion battery. The method comprises the following steps: A, selecting spraying time; B, determining the spraying quantity of a sprayed gas; C, determining a spraying mode, wherein the spraying mode refers to continuous spraying or interrupted spraying. The device comprises a control cabinet, a storage tank, a main control valve, a secondary control valve, a nozzle, a detector and a safety valve, wherein the control cabinet is a manual button control cabinet or an automatic control cabinet provided with a PLC (Programmable Logic Controller); the detector comprises a temperature sensor used for monitoring the temperature of one or more battery monomers. The method and the device have the advantages that dual effects of refrigeration and fire fighting are achieved, a security mode is complete in functions, stable, safe, reliable and efficient, a vaporization product of the liquid inert gas is nontoxic, environmentally friendly and clean as well as free from secondary damages on battery equipment.

The invention provides a wireless network cloud platform system based on lighting nodes. The wireless network cloud platform system comprises a wireless gateway, at least one wireless lighting driver, at least one wireless lighting controller, at least one positioned terminal and a cloud server client side. A cloud server is connected with a wireless gateway, issues configuration information to the at least one wireless lighting driver and the at least one wireless lighting controller for configuration, controls the at least one wireless lighting driver and judges whether faults exist in a lighting line or not according to a current and energy consumption of the lighting line. Position monitoring is carried out on the positioned terminal according to the positioning information of the positioned terminal, the environment in a preset area is monitored according to environment parameters, and monitoring data are displayed to a user. According to the embodiment, wired lighting control is replaced with the wireless lighting, and labor cost and material cost can be saved. In addition, lighting energy consumption is monitored in real time, dimming is carried out according to current illuminance, and therefore electric energy consumption can be saved.

The invention relates to an intelligent performance analysis and testing bench for batteries of motorized automobiles, which allows the studying and analysis on the charging and discharging characteristics of various batteries in a lab, so as to reduce the studying cost, shorten the studying time, simplify the studying procedures and improve the analysis accuracy. The invention comprises a main system interface module comprising a hi-voltage charging parameter setting module and a hi-voltage charging display module. The hi-voltage charging comprises hi-voltage programmed charging and hi-voltage constant-current charging. The main system interface module additionally comprises a low-voltage charging parameter setting module and a low-voltage charging display module. The low-voltage charging comprises low-voltage programmed charging and low-voltage constant-current charging. The main system interface module additionally comprises a discharging parameter setting module and a discharging display module. The charging comprises programmed discharging and constant-current discharging.

The invention provides a simulated experiment method of overheat faults of a contact surface in sulfur hexafluoride gas insulation equipment, belonging to the technical field of online monitoring of an insulation state of the SF6 gas insulation equipment. The method provided by the invention utilizes a 'simulation device of the overheat faults of the contact surface in the sulfur hexafluoride gas insulation equipment' applied by the applicant to carry out simulated experiment on the overheat faults of the contact surface in the SF6 gas insulation equipment. According to the method provided by the invention, the overheat faults of the contact surface in the SF6 gas insulation equipment can be simulated and the method has the characteristics of high simulation accuracy, high detection precision, simple experiment method, safety, easiness of mastering, convenience for popularization and application and the like. The simulated experiment method can be widely applied to simulating the overheat faults in the SF6 gas insulation equipment and particularly simulating the overheat faults of the contact surface in the SF6 gas insulation equipment.

The invention discloses a special robot for inspecting and deicing a high-voltage line. The special robot comprises a robot body; the top of the robot body is provided with an ultrasonic radar module and a GPS positioning module; a high-performance and long-life lithium battery is mounted inside the robot body; four adjustable stretching arms are mounted around the robot body; the upper parts of the tail ends of the adjustable stretching arms are provided with propellers below which translation wheels are mounted; the front end of each translation wheel is provided with a high-strength vibrating deicer; the robot body is also provided with two cloud decks, one of the cloud decks is arranged at the top of the robot body, and the other cloud deck is arranged at the bottom of the robot body; the front side of the robot body is provided with an infrared sensor; and the rear side of the robot body is provided with a rotatable manipulator. The special robot for inspecting and deicing the high-voltage line is light and artful in appearance and high in endurance battery capacity so that the utilizability of the equipment is greatly improved; and the special robot for inspecting and deicing the high-voltage line is provided with the two cloud decks with 24,000,000 pixels, and the upside and the downside of a circuit line can be visually inspected when a person walks on the circuit line.

The invention relates to an online monitoring method and a device for the temperature of a high-temperature superconducting cable conductor. The method provided by the invention comprises the following steps of: adhering a low-temperature sensor (2) onto the high-temperature superconducting cable conductor (1), and leading out the test leads of the low-temperature sensor (2) through a four-lead method; leading the test leads of the low-temperature sensor (2) into a corresponding temperature optical fiber conversion module (3); connecting the temperature optical fiber conversion module (3) and a modularized distribution type I / O system (4); connecting the modularized distribution type I / O system (4) to a computer (6); processing the input signal in the computer, and displaying and storing the temperature of the high-temperature superconducting cable conductor (1). The online monitoring method and the device provided by the invention can carry out the accurate temperature monitoring of the high-temperature superconducting cable conductor in a liquid nitrogen temperature range, and simultaneously realize high-voltage isolation monitoring. The online monitoring method and the device provided by the invention have the advantages of good insulation and anti-interference property, simple structure, reliable run, low electricity consumption, long service life and low cost.

The invention discloses a high-temperature solidifying furnace. The high-temperature solidifying furnace comprises a heating cavity, a heater and a temperature monitoring system, wherein the heater comprises a plurality of heating modules which can be controlled independently; and the temperature monitoring system comprises a thermocouple for monitoring the internal ambient temperature information of the heating cavity, an infrared monitoring device for monitoring temperature information on the surface of each layer of substrate inside the heating cavity and generating a temperature signal, a signal processing module for performing signal connection of the thermocouple and the infrared monitoring device and generating a corresponding execution command when a substrate with temperature abnormality is judged according to the temperature information fed back by the thermocouple and the temperature signal fed back by the infrared monitoring device, and an executing module in signal connection with the signal processing module and regulating the heating power of a heating module corresponding to the substrate with the temperature abnormality according to the execution command generated by the signal processing module. The high-temperature solidifying furnace monitors the ambient temperature of the heating cavity and the temperature on the surface of the substrate through the thermocouple and the infrared monitoring device, so that the solidifying temperature monitoring precision is improved.

The invention discloses traditional Chinese medicinal equipment with a good ventilation effect, and belongs to the technical field of traditional Chinese medicine saving. According to the equipment, the interiors of the left and right side faces of a box body are provided with a micro fan and a ventilation port, wherein the micro fan is electrically connected with a control panel, an instruction is sent by the control panel to switch on the micro fan when temperature reduction ventilation is needed by medicinal materials to ventilate the medicinal materials, drying agent filling layers are arranged on both upper and lower ends of the box body, drying devices or other additives preventing mosquitoes and insects can fill the filling layers to ensure the dryness and completeness of the medicinal materials, the medicinal materials in the box body can be conveniently taken out, a limiting device is not arranged, and therefore the scattering of the medicinal materials caused by the sliding out of frame bodies of medicine drawers in the box body is ensured to be prevented when medicinal materials are taken out.

The invention relates to a method for measuring temperature of a cavity of epitaxial equipment. The method comprises the following steps of: growing an oxide layer; performing ion implantation; performing an annealing process in the cavity of the epitaxial equipment; completely stripping off the oxide layer and measuring predetermined square resistance distribution; and acquiring corresponding temperature distribution according to a measured square resistance value and temperature-resistance relationship so as to measure the temperature of the epitaxial equipment. In the method for measuring the temperature of the cavity of the epitaxial equipment, the ion implantation is adopted and the annealing is performed in the cavity of the epitaxial equipment, so that the predetermined square resistance distribution is measured, then the corresponding temperature distribution is acquired, and overall temperature distribution of each region in the cavity of the epitaxial equipment is acquired to completely monitor the temperature of the cavity of the epitaxial equipment.

The invention relates to a wireless temperature measuring device for rotational molding equipment. The wireless measuring device mainly comprises an insulation box for a thermometer, an end cap for the thermometer, an information acquisition module, an FSK (frequency shift keying) radiofrequency transmitter, a power supply, a FSK radiofrequency receiver, an information processing module and a data processing system, wherein the information acquisition module acquires the temperature inside an oven of a rotational molding machine, the temperature of inside and outside walls of a mold and the temperature of materials, and converts the temperature into electric signals, the FSK radiofrequency transmitter transmits the converted signals to a receiving device, the FSK radiofrequency receivers receives the signals transmitted by the FSK radiofrequency transmitter, the data processing system processes and analyzes the temperature change signals received and acquired by the FSK radiofrequency receiver, and sends feedback the control system of the rotational molding equipment. A five-layer structure between the insulation box for the thermometer and the end cap for the thermometer can efficiently ensure the temperature measuring environment and precision of the equipment. The temperature measuring device can monitor the temperature change in real time, remarkably improve the efficiency of the rational molding, reduce the energy consumption, and improves the quality and the precision of the product.

A heating system for heating fluid media, in particular for domestic appliances, including a carrier unit, a heating unit arranged on the carrier unit and a heat transfer element which is arranged on the carrier unit and comprising a material which is a good conductor of heat, which heat transfer element has a first mounting portion for mounting a first safety device which responds at a first response temperature and a second mounting portion for mounting a second safety device which responds at a second response temperature which is lower than the first response temperature, which heat transfer element has a first temperature pickup portion which is in direct heat-conducting contact with the heating unit and the first safety device. Further, a heat transfer element has a second temperature pickup portion which is spatially separate from the first temperature pickup portion and which is in heat-conducting contact with the medium to be heated and the second safety device.

The invention discloses a quick quenching device and method for shaft parts. The quick quenching device for shaft parts is provided with a temperature monitoring device, a laser device, a liquid nitrogen cooling system, a workpiece clamp and a connecting plate assembly, wherein the connecting plate assembly is provided with a manipulator connecting plate, a connecting component and a spray nozzle connecting plate, a laser head is installed on the manipulator connecting plate, and a liquid nitrogen spray nozzle is installed on the spray nozzle connecting plate and is connected with a liquid nitrogen cooling system control valve through an air delivery pipe. The workpiece clamp is arranged under the connecting plate assembly and is provided with a chuck, a tip and a control system for controlling rotation of the chuck, and a workpiece is arranged between the chuck and the tip. The temperature monitoring device is arranged on one side of the connecting plate assembly and is used for monitoring the temperature of a laser quenching zone on the workpiece. By the adoption of the quick quenching device and method for shaft parts, the automation degree of surface laser strengthening of large shafts can be improved, working efficiency can be improved, shaft surface strengthening and near-net shaping can be also achieved, additional machining is not needed basically, and working procedures and cost are saved.

The invention discloses a part additive composite manufacturing device and method. The part additive composite manufacturing device comprises a forming chamber, a controlling device, a laser melting mechanical arm, a laser shot blasting mechanical arm, a femtosecond laser transmitter and a forming cylinder, wherein the bottom face of an inner cavity of the forming chamber serves as a working tabletop, the top of the forming cylinder is connected with the bottom of the working table top, a bottom plate of the forming cylinder is connected with a first lifting device, the laser melting mechanical arm and the laser shot blasting mechanical arm are both arranged on the inner wall of the forming chamber, a laser melting nozzle is arranged at the tail end of the laser melting mechanical arm, alaser shot blasting nozzle is arranged at the tail end of the laser shot blasting mechanical arm, an electric linear reciprocating mechanism is arranged in the inner cavity of the forming chamber, thefemtosecond laser transmitter is connected to the electric linear reciprocating mechanism, and the movement direction of the electric linear reciprocating mechanism is parallel to the working table top. The effect that three machining devices do not affect one another is realized, the comprehensive performance of produced parts is greatly improved, and meanwhile secondary machining is avoided.

A temperature-controllable electronic cigarette, related to an appliance for smokers, is disclosed in the present invention. An atomizer, a PCB control circuit board and a battery module are in sequence connected in an electronic cigarette body. A temperature sensor is arranged close to a resistance wire of the atomizer; the resistance wire and the temperature sensor are both electrically connected with the PCB control circuit; a pressure sensor is connected with the bottom of the atomizer; and the pressure sensor is electrically connected with the battery module and the PCB control circuit respectively. The present invention aims to provide a temperature-controllable electronic cigarette for controlling the heating temperature of the resistance wire of an electronic cigarette. The electronic cigarette can detect the heating temperature of the resistance wire in the electronic cigarette, and controls the disconnection / connection state of the circuit in the electronic cigarette according to the measured temperature, thus avoiding over-high heating temperature of the resistance wire, and improving the smoking experience of the smokers.

The invention provides a cooling type dehumidifier for an electric cabinet, which comprises a semiconductor cooling plate, an environmental temperature and humidity acquisition module, a hot-end temperature monitoring module for the semiconductor cooling plate, a control module, a level conversion module, a fan and a shell; and the control module is used for controlling the working states of the semiconductor cooling plate and the fan according to the current temperature in the electric cabinet obtained via a sensor, the temperature of the hot end of the semiconductor cooling plate, the humidity threshold set in the control module and the maximum allowable working temperature of the hot end of the semiconductor cooling plate. By adopting the characteristic of easy condensation under large air temperature differences, very low temperature can be achieved at the cold end of the cooling plate, and moisture in air can be condensed at the cold end of the semiconductor cooling plate and discharged out of the box through a water discharging hole. Since the moisture in humid air in the electric cabinet can be condensed and discharged out of the box, the humidity of air can be reduced significantly, and the common humidity problem of the electric cabinet can be solved fundamentally.

The invention relates to a method for online monitoring of the safety status of an energy storage battery. The method includes the following steps: determining the battery thermal runaway warning temperature; and providing early warning of battery thermal runaway. This method is based on the study of the reaction between the internal materials of the battery and the electrolyte. Through the research results of the temperature of the exothermic reaction between the internal materials of the battery and the electrolyte at different decay stages of the battery, it is possible to determine the temperature of the battery when the battery is in different stages of capacity decay. Out-of-control early warning temperature. Based on this research result, a method of using micro wireless sensors to detect the internal temperature of the battery is used. When the sensor detects the internal temperature of the battery, it is compared with the corresponding early warning value obtained from the research results, thereby realizing the detection of battery thermal Early warning of loss of control.

The invention discloses an intelligent cable plug and further discloses an intelligent cable plug detection system. The intelligent cable plug comprises a hollow body and at least one temperature sensor. The temperature sensor is located in the hollow body and comprises a detection module and an alarm module, wherein the detection module is used for detecting the real-time temperature value of the cable plug, and the alarm module is used for judging whether the cable plug operates abnormally or not according to the real-time temperature value and sending alarm information according to judgment results. Compared with the prior art, because the temperature of the intelligent cable plug can be monitored in real time, whether the cable plug operates abnormally or not is judged according to the real-time temperature value, and the alarm information is sent according to the judgment results, the temperature of the cable plug can be intelligently detected while an alarm for prompting can be given, faults can be found in time and prejudged, fault treatment can be carried out in time to recover normal power supply, power supply reliability is improved, and working efficiency is improved at the same time.

The invention provides a steam generation device which can generate steam with pressure, temperature, flow and dryness adjustable and the invention provides a dryness adjustment method. By adjusting flow of a water pump, the output flow speed of the steam can be conveniently adjusted, the pressure value of the steam can be kept constant under the action of a back pressure valve, and accordingly the steam with constant pressure is generated. By means of matching of the water pump, an electric heating wire and the back pressure valve, the steam with flow, pressure and temperature adjustable can be generated, and the output steam can be monitored through a temperature sensor and a pressure sensor.

The invention provides a temperature monitoring circuit device and method. The device includes: a voltage-stabilizing circuit module for providing a reference voltage; a temperature monitoring circuit module which is connected with the voltage stabilizing circuit and used for providing temperature sampling signals and reference voltage signals; a first signal processing module which is connected with the temperature monitoring circuit module and used for performing a subtraction operation between the sampling voltage signals and the reference voltage signals and amplifying the sampling voltage signals and the reference voltage signals; and a second signal processing module which is connected with the first signal processing module and the voltage stabilizing circuit and used for amplifying the signals and performing DC offset adjustment. In the technical scheme, a to-be-detected temperature is sampled so that the subtraction operation is performed between the temperature sampling signals and the reference signals and then the signals are amplified and the DC offset voltage adjustment is added so that an error signal is obtained and then the temperature value of the to-be-detected temperature is obtained according to the error signal. Therefore, real-time monitoring of the temperature of a turbine shroud of a breathing machine is realized and the precision of temperature monitoring is improved.

The invention relates to a semiconductor laser device aging tool which is characterized by comprising a main control panel, a communication connection board, multiple water cooling boards, an operation panel and a machine cabinet. The main control panel, the communication connection board and the operation panel are respectively assembled in the machine cabinet. Each water cooling board is installed in the machine cabinet via a guide rail. The main control panel is connected with an upper computer via a 485 communication mode. The communication connection board connects the water cooling boards and the main control panel via flat cables. The operation panel controls power-on and power-off of the whole system of the aging tool, and the state of each aging device is indicated. Simultaneous aging of multiple semiconductor laser devices can be realized, aging parameters of each laser device can be independently set, and current, voltage, power and temperature of the laser devices can be monitored simultaneously.

A gas stove and smoke exhaust ventilator cooperative control system comprises a gas stove part, a smoke exhaust ventilator part and a gang control part. According to the system, a programmable infrared detection module is adopted to be matched with a single-chip microcomputer programming temperature control module to carry out real-time detection, processing and alarm output on temperature in a cooker, and accidents that oil is spontaneously combusted and a boiler is dried out due to negligence can be effectively avoided. A wireless control module conveys and processes the operation state of the gas stove, a gang control module controls the operation states of the gas stove and the smoke exhaust ventilator, and automatic control over the boiling water mode, cooking mode and stewing mode can be achieved, for example, after water is boiled, the gas stove is automatically switched off and the smoke exhaust ventilator is switched off in a delayed mode. The gang control system has the real-time temperature displaying function and the commonly used cooking oil smoke point temperature value setting function, also has the function of manually setting the temperature alarm value, and meets the requirements of various healthy cooking.

The invention discloses a method and a device for preparing Li-B alloy by vacuum smelting, pertaining to the metallurgy technology field. The device is a vacuum smelting furnace, a temperature-control thermocouple is arranged at the outer side of a crucible, a stirring paddle is arranged at the central position of the smelting furnace, a temperature thermocouple is arranged at the bottom end of the stirring paddle, an incident light port and an observation port are arranged on the upper surface of the furnace cover, a vacuum-pumping and argon channel is arranged at the upper end of the side of the furnace body, and an air-cooling device is arranged at the corresponding position of the argon channel. Li and B powder are put into the iron crucible, protected in high vacuum atmosphere, heated to 400 DEG C and then kept for 10min to 2h, the B powder is introduced with Ar gas to carry out protection when being fully dissolved in the melting of the Li; temperature rise is continued and stirring is reinforced, melt is solidified at the temperature of 530 DEG C, and after the alloy is fully solidified, the temperature rises to 650 DEG C, and the alloy is cooled with the furnace and treated with air-cooling after the temperature of 400 DEG C. The method and the device of the invention have compact and reasonable structure, simple technology, safe use, convenient operation and high-efficient production, thus having generalization and application value.

The invention discloses a switching room monitoring alarm system. A plurality of power distribution cabinets are parallelly arranged in a switching room; each two power distribution cabinets form a power distribution cabinet set; a coil chamber is arranged between two power distribution cabinets in each power distribution cabinet set, and is internally provided with a cooling coil; a communication area is arranged between two power distribution cabinets in each power distribution cabinet set, and is internally provided with a temperature probe; a temperature controller is arranged in one power distribution cabinet, and controls two fans in the set to work simultaneously; the lower portion of the power distribution cabinet is provided with a total cooling water supply pipe and a cooling water return pipe which are both in connection with a cooling water supply terminal; the ceiling of the switching room is provided with a fire alarm. The system can effectively monitor temperatures in power distribution cabinets to keep the temperatures within a safe and reasonable range, control a rate of temperature increase in power distribution cabinets to prevent fire, and ensure the normal operation of power distribution cabinet inner elements and the safety of an electric power system.

The invention discloses automatic fixed-length cutting equipment for a stainless steel-teflon braided tube. The automatic fixed-length cutting equipment comprises a feed conveying mechanism, a traction straightening mechanism, a counterweight material storage mechanism and a fusion cutting mechanism. The fusion cutting mechanism comprises a fusion resistance unit and a saw cutting unit. The fusionresistance unit comprises a fifth air cylinder, a sixth air cylinder, a left solder resistance clamping assembly, a right solder resistance clamping assembly and a high-pressure gas blowing device, wherein the driving direction of the fifth air cylinder is opposite to that of the sixth air cylinder; the left solder resistance clamping assembly is driven by the fifth air cylinder, and the right solder resistance clamping assembly is driven by the sixth air cylinder; and the high-pressure gas blowing device conducts gas blowing cooling on the fused portion of the tube. The structure of the leftsolder resistance clamping assembly is the same as that of the right solder resistance clamping assembly, and a gap is reserved between the left solder resistance clamping assembly and the right solder resistance clamping assembly. The left solder resistance clamping assembly comprises an upper clamping electrode block and a lower clamping electrode block which are used for clamping the tube andare further electrically connected with a power supply unit. The saw cutting unit comprises a cutting blade which moves up and down and further makes self-rotation movement. The cutting blade goes deep into the gap. The automatic fixed-length cutting equipment is high in cutting efficiency and cutting precision, and a fusion ring is formed on the cut-off surface so that the scattering phenomenon can be avoided.

The invention discloses a braking simulation test device and method for a km deep mine hoist disc brake. The device comprises a flywheel system, a braking system and a sensing monitoring system. The flywheel system comprises a frequency converter (1), a motor (2), a jaw clutch (3), a gear coupling (6), a rotation shaft (8) and a flywheel assembly. The braking system comprises a braking disc (19),a braking shoe (18), a shoe clamp (13), a shoe clamp connection plate (20), a connection component (16), a sliding block guide rail (11), a hydraulic cylinder (21) and a hydraulic cylinder holder (17). The sensing monitoring system comprises a rotation speed sensor (5), a vibration sensor (10), an infrared temperature sensor (12), a three-dimensional force sensor (14) and a positive pressure sensor (16). According to the device and the method, braking performance of emergency braking of the mine hoist disc brake can be tested, and practical braking condition of the mine hoist disc brake can betruly simulated.

The invention discloses a cold-hot stage type high-speed calorimeter capable of being combined with other microstructure characterization techniques, and relates to the phase and microstructure analysis device technology field. The cold-hot stage type high-speed calorimeter includes a sample chamber having a light transmission transparent window and a light reflection transparent window on the wall, a cold-hot stage having the interior including a heating element and a refrigerant circulation pipeline for controlling the temperature and having a transmission hole, a sample chamber temperature control system and a high-speed calorimetric system. The cold-hot stage type high-speed calorimeter has the advantages that: 1, the high-speed calorimetric system having the temperature rising / dropping rate is miniaturized to the cold-hot stage, and with utilization of the reflection window, the transmission window and the cold-hot stage transmission hole, on-site combination of calorimetry and microstructure characterization are carried out; and 2, response is rapid through programmable control, sample temperature disturbance caused by incident light in structure measurement is dynamically compensated, the sample temperature is stabilized, thereby being conveniently used for researches on a metastable state.

The invention discloses a roof integrated explosion-proof air conditioner, which comprises a sheet metal shell mounted on a roof, wherein the sheet metal shell is internally divided into a refrigerating chamber and a heat dissipating chamber by a partition, the refrigerating chamber is internally provided with an evaporator, an explosion-proof centrifugal fan for cooling and a temperature detecting module, the heat dissipating chamber is internally provided with a compressor, a condenser, an explosion-proof control box, a refrigeration system pressure protection module and a temperature protection module, a top cover of the heat dissipating chamber is provided with an axial flow fan corresponding to the condenser in position, and a hollow protection cover is arranged above the axial flow fan. The roof integrated explosion-proof air conditioner has the advantages of excellent explosion-proof function, high safety, small space occupation and simple and convenient installation and maintenance, can ensure the cooling effect of a high-temperature dangerous environment of drilling, petroleum and chemical industries, etc., effectively reduces the equipment occupying space, and also has the characteristics of convenient installation and maintenance, safety and reliability.