93results about How to "Reduce heating power consumption" patented technology

The invention provides a single-tank, double-pipe and bidirectional electric heating device and an air energy instant electric water heater. The single-tank, double-pipe and bidirectional electric heating device comprises a cylindrical tank body, the two ends of the tank body are connected with an upper end cover and a lower end cover in a sealing mode, the lower end cover is provided with a water inlet, a water outlet and a binding post, the tank body is internally provided with two layers of concentric pipe bodies which are an inner pipe body and an outer pipe body, an electric conduction heating body is arranged on a space layer between the inner pipe body and the outer pipe body, and a communicated water flow channel is formed by the inner channel of the inner pipe body and the annular channel between the tank body and the outer pipe body. The path length of water flow is increased, and the heating area of the water flow pipe bodies is increased by placing pipe bodies into the single tank body to divide the space inside the tank body, the process of obtaining the heating energy directly and bidirectionally transmitted by the heating body is accelerated, the heating and acting heat effect ratio per unit time of the tank body is effectively improved, and the power loss and the heating loss are reduced.

The invention relates to an energy-saving engine room heat regulation system of a high-power wind driven generator, which is used for solving the problem of heat regulation of wind driven generators. The heat regulation system consists of a refrigeration circulating system and a liquid cooling circulating system, wherein the refrigeration circulating system is arranged outside the engine room of the generator and is a refrigerant closed loop comprising a compressor, a condenser, a main electromagnetic expansion valve and an evaporator; the liquid cooling circulating system comprises a frequency-conversion control cabinet, a generator, a gearbox, an evaporator and a circulating pump, the frequency-conversion control cabinet, the generator and the gearbox are connected together in parallel and then connected with the evaporator and the circulating pump to form a secondary refrigerant closed loop, and the evaporator is formed by an inner pipe and an outer pipe which are sleeved together; the inner pipe is connected into the refrigeration circulating system; and a cavity between the inner pipe and the outer pipe is connected into the liquid cooling circulating system. The heat regulation system organically combines a refrigerating device and a heating device, has strong cooling capacity and low cooling and heating energy consumption and can guarantee the safe and efficient operation of the high-power wind driven generator.

The invention relates to semiconductor gas-sensitive sensor technology, and discloses a manufacturing method of an oriented nano-fiberized three-dimensional stereoscopic interdigital electrode of a semiconductor gas-sensitive sensor. The method comprises the following steps: firstly transferring a pattern of an interdigital electrode to a photoresist layer by a traditional photoetching process, etching a monocrystalline silicon substrate by a dry method with the photoresist layer as a mask so as to prepare oriented nano-fibers, sputtering a layer of Pt as a conducting layer on the fiber surfaces by a magnetron sputtering process, and finally peeling off the photoresist layer by a chemical method to obtain the oriented nano-fiberized three-dimensional stereoscopic interdigital electrode of a semiconductor gas-sensitive sensor. Compared with traditional plate interdigital electrodes, the oriented nano-fiberized three-dimensional stereoscopic interdigital electrode contains silicon nanofibers with high specific surface areas which can effectively increase the surface area of the electrode without decreasing interdigital pair numbers, thus can effectively increase the sensitivity of the sensitive electrode, and solves the contradictory relation between the interdigital pair numbers of traditional plate interdigital electrodes and surface areas.

The invention discloses a clothes dryer and a drying method thereof. An air incoming end of a condenser arranged on the clothes dryer is connected with an air exhausting end of a drying barrel, an air exhausting end of the condenser is connected with an air incoming end of the drying barrel, an air compressor is arranged arranged on a pipeline between the condenser and the air exhausting end of the drying barrel, a heating wire is arranged on a pipeline between the air exhausting end of the condenser and the air incoming end of the drying barrel, a to-be-heated pipe is arranged between the air incoming end of the condenser and the heating wire, and the condenser is arranged inside the to-be-heated pipe. Through the clothes dryer and the drying method thereof, the problem that drying time is prolonged when energy consumption of a clothes dryer in the prior art is lowered is solved, so that effect of reducing power consumption and drying time of the clothes dryer is realized.

The invention discloses an automobile heat pump system and a control method. The automobile heat pump system comprises a warm air core body and an automobile equipment refrigeration unit. The automobile equipment refrigeration unit comprises a first compressor, a first condenser, a first evaporator and an automobile equipment radiator set. A heat medium of the warm air core body exchanges heat with a refrigerant in the first condenser to be heated and then flows back to the warm air core body; cold end air of the warm air core body is used for heating air of a passenger compartment; a refrigerant exchanges heat and is cooled in the first condenser and then flows into the cold end of the first evaporator; a cold medium of the automobile equipment radiator set enters the hot end of the firstevaporator, exchanges heat with a refrigerant for cooling and then flows back to the automobile equipment radiator set to be used for heat dissipation of automobile equipment. A refrigerant exchangesheat in the first evaporator, is heated and then flows into an inlet of the first compressor. Motor waste heat, battery waste heat and external air heat are utilized to the maximum extent, and an automobile air conditioner does not need to switch heating through a refrigerant loop; the development cost and the automobile heating power consumption are reduced.

The invention discloses a method and device for achieving COMMAND mode MIPI signals through a bridge chip. The device comprises an LVDS-to-RGB module, a COMMAND mode data buffer, an image detection module, an image switching command module, a COMMAND control module and a COMMAND mode data processing module. The device is used for converting LVDS video signals into recognizable COMMAND mode data bus interface signals of the bridge chip to be displayed by a liquid crystal module with an MIPI interface. According to the bridge chip, the RGB video signals can be completely demodulated into the MIPI video signals without errors. VESA / JEIDA LVDS video signals are converted into the RGB signals, and then the RGB signals are converted into the MIPI signals through the bridge chip. The method and device are suitable for the need for the resolution ratio of different liquid crystal modules.

The invention discloses an efficient integrated active heat management system for an electric vehicle. The system comprises an oil-cooled lubrication-type electromechanical coupling system, an oil-cooled integrated high-pressure integrated controller, an oil-cooled power battery system, a composite heating and cooling air-conditioning system based on a high-efficiency heat pump, a central heat exchanger system, a modular air-cooling system, a switchable loop system and a control device. By switching the controlled pipelines, various heat-generating components operate at a suitable temperaturewhen the vehicle is at a low temperature. The waste heat is fully utilized and is introduced into a power battery pack and the vehicle interior for heating, thereby shortening the running time of a heat pump air conditioning system and a PTC heater and reducing heating power consumption. The preheating time is shortened, which is conducive to the health of the power battery. The heat is dischargedat high temperature to ensure that the respective heating parts operate at the suitable temperature. Through the multi-loop active switching form, the temperature of each component is in an optimal section, and the waste heat is transferred and released to the required components, thereby realizing the high efficiency, flexibility and the energy saving of the heat management system.

The invention relates to an integration circuit, a temperature control heating circuit and a constant temperature keeping device which have temperature control function. The integration circuit comprises a temperature regulation module and a heater; the temperature regulation module can arrange a control signal according to the user; the heater is controlled by the control signal of the temperature regulation module so as to generate heat energy with pre-arranged temperature. As the original temperature control circuit is integrated with the heating circuit, the integration circuit, the temperature control heating circuit and the constant temperature keeping device also can shorten the whole volume except for leading the user to arrange temperature; therefore, the power consumed by heating is further reduced, and the efficacy of energy-saving is achieved.

The invention discloses a method for preparing Na4Fe3 (PO4) 2 (P2O7) by a homogeneous method and an application, and the preparation method comprises the following steps: mixing a carbon source, an iron source, a sodium source and a phosphorus source according to a certain stoichiometric ratio, adding an organic solvent, and sanding to form a homogeneous dispersion system; and carrying out spray drying to obtain a precursor, and sintering the precursor in an inert atmosphere to obtain Na4Fe3 (PO4)2(P2O7) powder. According to the method, the agglomeration phenomenon of the Na4Fe3 (PO4) 2 (P2O7) micro-nano powder can be remarkably improved, the morphology and the electrical performance of the powder are improved, the used organic solvent can be recycled through a cooling system for secondary utilization, the latent heat of vaporization of the organic solvent is far lower than that of water, and the heating power consumption is reduced. Compared with the existing transition metal oxide, Prussian blue and vanadium-based polyanionic compound positive electrode materials, the Na4Fe3 (PO4) 2 (P2O7) positive electrode material prepared by the invention is lower in cost, better in cycling stability, green and pollution-free, and can provide an ideal positive electrode for a commercial sodium ion battery.

A method for coating the sensing material on the substrate of flat gas sensor includes such steps as grinding the inorganic sensing material particles, mixing with solvent to obtain slurry, immersing said substrate in the solution of transition metal chloride for activating it, drying by compressed air, annealing in N2, and coating the slurry onto said substrate by micro-slurry applicator.

The invention discloses a nitrogen dioxide gas sensor containing petal-like SnSe2. The nitrogen dioxide gas sensor comprises a gas sensitive material and a heating substrate, wherein the heating substrate is coated with the gas sensitive material, the coating thickness ranges from 1-100 micrometers, and the gas sensitive material is prepared from a petal-like SnSe2 nanomaterial. A preparation process includes the following steps: step 1, mixing 1.6-2.4 mL of C2H8N2 with 30.4-45.6 mL of (CH2OH)2, adding 361-541.6 mg of stannous chloride dihydrate and 126.3-189.5 mg of selenium powder, performing magnetic stirring for 20-30 minutes, pouring the mixture into a reaction kettle for 3-12 hours of reaction at the temperature of 165-180 DEG C, separating an obtained black product by a centrifugalmachine, repeatedly performing washing until the pH of waste liquid is 6.5-7.5, and drying the waste liquid at the temperature of 80 DEG C for 6-12 hours to obtain the petal-like SnSe2; step 2, preparing SnSe2 dispersion liquid; step 3, coating the dispersion liquid onto the heating substrate, and drying the heating substrate in a drying box at the temperature of 80 DEG C to obtain the nitrogen dioxide gas sensor. The nitrogen dioxide gas sensor provided by the invention has the advantages of simple process step, low cost and sensitive response to nitrogen dioxide.

The invention discloses a temperature control eye fumigating physical therapy device which comprises physical therapy device bodies arranged on the left side and the right side of a connection frame in a structural type of spectacle glasses. Each physical therapy device body comprises a supporting body, a heating part, an adsorbing part and a fumigating part, wherein the supporting body, the heating part, the adsorption part and the fumigating part are sequentially connected in the direction from the orbit to the eyeball. A hollow heat conduction supporting part is further arranged between the heating part and the adsorption part of each physical therapy device body, and a refrigerating part is further arranged in each heat conduction supporting part. According to the temperature control eye fumigating physical therapy device, unevenness of heating the adsorption parts by the heating parts is avoided, and therefore discomfort of the human eyes is avoided. Semiconductor refrigerating plates are current transduction type pieces, due to the control over input currents, high-precision temperature control can be achieved, in addition, refrigerating time and heating time are short, fast and efficient temperature control is achieved, and therefore the heating power consumption power of resistance wires of the heating parts is reduced.

The invention aims to provide a whole vehicle HVAC system and an air conditioning mode conversion method. The whole vehicle HVAC system comprises an air conditioning device, an HVAC controller and a whole vehicle auxiliary heating device, wherein the air conditioning device comprises a shell, an air conditioning mode conversion device, two air inlet boxes, a linkage driving device, an evaporator and an air conditioning heater; the shell is provided with an air outlet cavity and two air inlet holes; the air conditioning mode conversion device is arranged in the air outlet cavity; the two air inlet boxes are provided with internal and external circulating air mode conversion devices and connected to the outer ends of the air inlet holes in a one-to-one matching manner; the linkage driving device is provided with two air-blast impellers extending into the inner ends of the air inlet holes in a one-to-one matching manner; the evaporator and the air conditioning heater are arranged in the air outlet cavity; a blowing-face air outlet is arranged at the front end of the shell; and a defrosting air outlet is arranged at the upper end of the shell. The whole vehicle HVAC system has lower speed of an air blower and higher efficiency of the air blower under the same air volume requirement so as to facilitate energy saving and noise reduction. In the cold weather, the whole vehicle auxiliary heating device is used for assisting in heating, so that the heating temperature and heating speed can meet the needs.

The invention discloses a low-power-consumption positive temperature coefficient thermistor starter which is mainly used for starting a refrigerator compressor motor and can be used for starting a common single-phase alternating current motor. The low-power-consumption positive temperature coefficient thermistor starter is characterized by comprising a bidirectional thyristor T and a positive temperature coefficient thermistor Rt, wherein an end A1 of the bidirectional thyristor T is connected with a leading-out end S of a motor secondary winding; an end A2 of the bidirectional thyristor T is connected with a leading-out end M of a motor primary winding; an end G of the bidirectional thyristor T is connected with one end of the positive temperature coefficient thermistor Rt; and the other end of the positive temperature coefficient thermistor Rt is connected with the leading-out end M of the motor primary winding. The low-power-consumption positive temperature coefficient thermistor starter has the advantages of simple structure, reliability in operation, low cost and suitability for large-scale batch production, and the large-scale batch production can be matched with large-scale production of household electrical appliances.

The invention discloses a device for cleaning the contaminants on the surface of a spherical Langmuir probe, comprising a hollow spherical Langmuir probe, a cleaning halogen lamp, a ceramic halogen lamp bracket, a coaxial lead for the power supply of the cleaning halogen lamp, a temperature measuring resistor, a coaxial lead for supplying power to the temperature measuring resistor, a hollow columnar spherical Langmuir probe bracket, a ceramic insulating base, a temperature measuring power supply interface and a cleaning halogen lamp power supply interface. One end of coaxial lead for the power supply of the cleaning halogen lamp penetrates through hollow columnar spherical Langmuir probe bracket and the ceramic halogen lamp bracket and is connected with the cleaning halogen lamp, and the other end is connected with the power supply of the cleaning halogen lamp; the temperature measuring resistor is adhered to the surface of the hollow cavity of the spherical Langmuir probe; one end of the coaxial lead for supplying power to the temperature measuring resistor penetrates through hollow columnar spherical Langmuir probe bracket and is connected with the temperature measuring resistor, and the other end is connected with a temperature measuring power supply. The device can be used for effectively clean the spherical Langmuir probe when the satellite runs in the orbit during the satellite ion electric propulsion plume monitoring, and the device can be heated by consuming lower power.

Provided is a low-power-consumption heat insulation and preservation strengthening process of an LCD module. The low-power-consumption heat insulation and preservation strengthening process is characterized in that the aim of local heat preservation of the module is achieved through the combined action of heat preservation grooves in a front shell of a metal structure and transparent heat insulation and preservation optical composite glue. The heat preservation grooves are located in the four corners of the front metal shell, the inner surfaces of the grooves are frosted surfaces, heat preservation materials are pasted in the grooves, and the heat conductivity is smaller than 0.03 W / m.K. The transparent heat insulation and preservation optical composite glue is prepared from nano SiO2 aerogel slurry, water-based acrylate resin, a dispersing agent, an initiator, other filter and the like. The heat conductivity of the transparent heat insulation and preservation optical composite glue is smaller than 0.09 W / m.K, and the light transmissivity of the transparent heat insulation and preservation optical composite glue is larger than 97%. According to the process, the display quality of the module at low temperature can be improved, low temperature power consumption can be reduced, and the low temperature failure occurrence rate can be lowered.

The present invention provides a closed-loop probe heating control system to provide a heating control system with accurate temperature control, low power dissipation and high reliability. The closed-loop probe heating control system is realized through the following technical schemes: a probe temperature sensor (1) feeds resistance signals into an analog quantity conditioning module (2) for conditioning and converts the resistance signals to voltage signals, an A / D converter (3) converts the voltage signals to digital signals and then the digital signals are processed through a central processing unit (CPU) (5), the central processing unit (CPU) (5) emits control signals to a regulation PWM wave heating module (6) according to the collected temperature signals, the control signals are compared to the preset threshold of probe heating, the duty ratio of the PWM wave heating module is regulated according to a comparison result, pulse width modulation (PWM) waves are output to a probe heating wire (7), the heating power of the probe heating wire is regulated, the temperature of the probe is controlled on a preset threshold, and the duty ratio of a heating power supply is regulated to realize the regulation of the probe heating wire heating power.

The invention relates to a gas sensor and a manufacturing method thereof, in particular to an AlN ceramic substrate thermal insulation structure four-unit array gas sensor and a manufacturing method thereof. The problems that an existing silicon substrate micro-hotplate integrated array gas sensor is poor in hot stability, the silicon substrate hotplate integrated array gas sensing film forming technology is complex, and hot mismatching exists on a silicon substrate at high temperature are solved. The AlN ceramic substrate thermal insulation structure four-unit array gas sensor comprises a rectangular aluminum nitride ceramic substrate and four independent sensor units. Each independent sensor unit comprises two heating electrodes, two signal electrodes, four isosceles trapezoid heat insulation holes, a rectangular heater and a signal detector. The manufacturing method of the AlN ceramic substrate thermal insulation structure four-unit array gas sensor comprises the steps that the aluminum nitride ceramic substrate is cleaned by an acetone solution and an alcoholic solution at first, then is dried, glued and photoetched, and is coated with a film and placed into the acetone solution to dissolve photoresist, laser etching is carried out, the aluminum nitride ceramic substrate is placed into a diluted hydrochloric acid solution to be cleaned, and finally annealing treatment is carried out, so that the sensor is obtained. The AlN ceramic substrate thermal insulation structure four-unit array gas sensor is applicable to measuring gas compositions.

The invention belongs to the technical field of gas sensors, and provides a gold-modified flower-like SnS2 nitrogen dioxide gas sensor and a preparation method thereof. The nitrogen dioxide gas sensorcomprises a gas sensitive material and a heating electrode. The gas sensitive material is uniformly coated on the surface of the heating electrode. The gas sensitive material is flower-like SnS2 withuniformly distributed gold, and has a large surface area-volume ratio structure, and Au nanoparticles can be used as an active catalyst with specific catalytic characteristics, and can enhance the diffusion and transfer rate of adsorbed substances from an active site to an inactive site. The gold-modified flower-like structure nano material is prepared by adopting a hydrothermal method and a water bath method, the raw materials are convenient to obtain, the price is low, and the preparation process is simple.

The invention relates to a rectangular micro heating device with a heating resistance wire with non-uniform wire width and a heating method. The micro heating device comprises a substrate frame, a rectangular heating film region, a supporting suspension beam, a trapezoidal transition region, a folded heating resistance wire, a lead, a contact electrode and a heat insulation chamber. The system is characterized in that the rectangular heating film region is connected with the substrate frame through the transition region and the supporting suspension beam; the folded heating resistance wire is arranged on the rectangular heating film region in a manner of having wider wire width at the centre of the heating film region and narrower wire width at two ends of the heating film region, and is connected with the contact electrode on the substrate frame through the lead on the supporting suspension beam; and the heat insulation chamber is arranged below the rectangular heating film region and the supporting suspension beam.

The invention relates to a screen heating control method and system applied to terminal starting. The screen heating control method comprises the steps: S1, monitoring the temperatures of multiple different positions of a screen in real time to obtain multiple real-time temperature values; S2, calculating a median temperature value in the plurality of real-time temperature values, and obtaining differences between the plurality of real-time temperature values and the median temperature value; S3, selecting the real-time temperature value with the difference value meeting a preset condition asan effective temperature value, and obtaining an average value of all the effective temperature values; S4, comparing the average value with a preset target value, executing the step S5 when the average value is less than the preset target value, and executing the step S6 when the average value is not less than the preset target value; S5, starting the screen heating system, obtaining a differencevalue between the average value and a preset target value and a change value of the average value according to a preset period so as to control the heating power of the screen heating system, and executing the step S1; S6, starting a terminal starting process. By implementing the invention, the heating power consumption can be effectively reduced so as to improve the cruising ability of the equipment in a low-temperature environment.

The invention discloses an intelligent temperature-control eye therapy instrument which comprises a shell. The shell is of a spectacles structure, a circuit board and a control unit are arranged in the shell, physical therapy units are connected to positions of spectacle lenses on one side of the circuit board and close to eyes, and a power source is connected to the other side of the circuit board; each physical therapy unit comprises a support body, a heating element, an adsorption element and a steaming element which are sequentially connected in the direction away from the eyes to the direction of the eyes, a hollow heat-conducting support element is further arranged between the heating element and the adsorption element of each physical therapy unit, a refrigerating element is further arranged in the heat-conducting support element, and the refrigerating element is of a semiconductor-refrigerating chip; the control unit is connected with the circuit board and comprises a microprocessor, a button control module and a Bluetooth module, the button control module and the Bluetooth module are connected with the microcontroller, the microcontroller is used for controlling the physical therapy units, the button control module is used for controlling buttons, and the Bluetooth module is used for being wireless connected with external equipment.

The invention provides a method for binding an ultra-high molecular weight polyethylene film sheet and a metal board. The method comprises the following steps of: (1) cutting the ultra-high molecular weight polyethylene film sheet coated with a copolymer primer into blocks for later use; (2) grinding a board face made of a metal material or the surface of a box body to be a rough surface; (3) heating the rough surface in the step (2) to a temperature of 190-250 DEG C; and (4) gradually adhering the block-shaped ultra-high molecular weight polyethylene film sheets in the step (1) to the heated rough surface in the step (3) one by one; pressing the block-shaped ultra-high molecular weight polyethylene film sheets, so that the block-shaped ultra-high molecular weight polyethylene film sheets are tightly adhered to the heated metal rough surface; and pressing the block-shaped ultra-high molecular weight polyethylene film sheets until the temperature of the metal rough surface is cooled to a temperature of 50-60 DEG C. With the adoption of the method provided by the invention, the ultra-high molecular weight polyethylene film sheet is tightly adhered to a metal material, so that the service life of a product obtained by binding the ultra-high molecular weight polyethylene film sheet and metal is prolonged, and the application range of the ultra-high molecular weight polyethylene film sheet can be expanded.

The invention discloses an automobile air conditioner heating method which comprises the steps that on the premise that the power-on state of an automobile is ON, the air conditioner required strengthis calculated by collecting air conditioner settings of a user, and meanwhile whether heating is conducted or not is judged in combination with the collected engine water temperature and evaporator air outlet temperature; signals of in-vehicle temperature, in-vehicle humidity, out-vehicle temperature and sunlight intensity are collected, a front bumper dew point temperature and a front bumper inner wall surface temperature are calculated for judging a fogging risk; in addition, VCU power information is collected to judge whether PTC is allowed to be started or not; meanwhile, the vehicle speed serves as input of a calculation model, and the compensation effect of the vehicle speed on external circulation air intake is considered. And the information is integrated to obtain the temperatureair door opening degree, the air outlet mode, the air blower gear, the internal circulation proportion, the PTC power, the water pump duty ratio and other outputs in the state. On the premise of ensuring that the front gear is not fogged, the internal circulation proportion is increased as much as possible, so that the power consumption of electric appliances such as a PTC, an air blower and a water pump is reduced, and the purpose of saving energy is achieved.

The invention relates to a multi-station compound hollow insulator flange cementing machine. According to the existing cementing machine, the height of each compound hollow insulator is different so that a compound hollow insulator flange only can be singly produced, a sealing ring cannot be compressed in place and sealing leakage is caused. Therefore, the cementing efficiency is low, the energy consumption is great and the quality is instable. Therefore, the multi-station compound hollow insulator flange cementing machine comprises a bottom plate and a top plate; the bottom plate is internally provided with heating device and N hydraulic cylinders are arranged below the bottom plate; N flange fixing devices are arranged at positions on the bottom plate, which correspond to the N hydraulic cylinders; N adjusting pressing devices are arranged at the positions below the top plate, which correspond to the N flange fixing devices; and N groups of stations are formed by the N hydraulic cylinders, the N flange fixing devices and the N adjusting pressing devices, and N is a natural number which is more than or equal to 2. According to the multi-station compound hollow insulator flange cementing machine, the cementing of a plurality of the compound hollow insulator flanges can be realized; the cementing machine has an automatic positioning function and prevents a product from being flattened; and furthermore, the cementing machine has the advantages of high production efficiency, low heating power consumption, good product stability and the like.

The invention relates to a micro-gas sensor of a laminated structure and a preparation method of the micro-gas sensor, and belongs to gas sensors and preparation method thereof. The gas sensor comprises a single-chip gas micro-reactor and a single-chip temperature detector, and the single-chip gas micro-reactor and the single-chip temperature detector are processed by MEMS (micro electro mechanical systems) technology and form the micro-gas sensor of the integral laminated structure through bonding. The single-chip gas micro-reactor independently heats a catalyst carrier, the single-chip temperature detector independently detects temperature rise of the single-chip gas micro-reactor due to gas catalytic combustion reaction and is not influenced by voltage or current on the single-chip gas micro-reactor during measuring, and the single-chip gas micro-reactor and the single-chip temperature detector are not electrically connected and independent to each other. The preparing process of the micro-gas sensor is compatible with CMOS (complementary metal oxide semiconductors) process. The sensor can respectively and independently regulate the single-chip gas micro-reactor and the single-chip temperature detector, and therefore, the sensor can have various operating modes, is simple in configuration, easy to operate, low in power consumption, high in sensitivity and stable in performance.

The invention discloses a ZnSe / ZnO based nitrogen dioxide gas sensor and a preparation process thereof. The sensor comprises a gas sensitive material and a heating electrode, wherein the gas sensitivematerial is coated on the surface of the heating electrode, the coating thickness is 50-80 microns, and the gas sensitive material is a heterojunction composite nano-material formed by zinc selenideand zinc oxide. The preparation process comprises the steps of first, placing zinc selenide powder in an ark, putting the ark in a tubular furnace, introducing a dry gas mixture of 20% of oxygen and 80% of nitrogen for heating at the same time, and reacting at a temperature of 400 DEG C-600 DEG C for 0.5h-4h, then naturally cooling to the room temperature to obtain a ZnSe / ZnO heterojunction; second, putting the ZnSe / ZnO heterojunction powder into a mortar, adding deionized water, and grinding until the solution is in uniform suspension; taking the suspension, coating the suspension on the surface of the heating electrode, placing the sensor in a drying oven to dry at a temperature of 80 DEG C so as to obtain a nitrogen dioxide gas sensor. The nitrogen dioxide gas sensor has the advantagesof simple processing steps, low cost and sensitive response to nitrogen dioxide.

The invention discloses a catalytic combustion gas sensor based on a ceramic-based micro-hotplate and a preparation method of the sensor. A ceramic film and a heating layer are sequentially formed onthe first surface of a silicon substrate to form the ceramic-based micro-hotplate; the ceramic film is formed by sintering set ceramic slurry; the heating layer is formed by sintering set conductive slurry; and the ceramic film and the heating layer are both formed by a high-temperature sintering process and have the relatively good high temperature resistance, so that compared with the prior artthat the heating layer is formed by physical vapor deposition of low-temperature process conditions, the heating layer formed by the high-temperature sintering process has the better high temperatureresistance, and the stability and the reliability can be improved. By adjusting compositions of the ceramic slurry, the thermal conductivity of the ceramic film can be adjusted and the problem of relatively rapid heat dissipation is avoided, so that the heating power consumption is reduced. Compared with chemical vapor deposition and physical vapor deposition equipment, equipment for forming the ceramic film and the heating layer by sintering the corresponding slurry is relatively low in equipment cost, and the manufacturing cost is reduced.

The invention belongs to the field of infrared light sources, and particularly relates to an MEMS infrared light source and a manufacturing method thereof. According to the MEMS infrared light source, a reflecting layer with high reflectivity to infrared radiation is introduced into a heating electrode layer and the back of a supporting material (located in a cavity area of a substrate), so that infrared radiation energy radiated by the heating electrode layer to the cavity part of the substrate through a supporting film is reflected back and is radiated upwards through the heating electrode layer; infrared radiation energy capable of being utilized by the infrared sensor is enhanced, the photoelectric conversion efficiency of the MEMS infrared light source is greatly improved, and the heating power consumption is reduced; meanwhile, the ultrathin (the thickness is not greater than 1 micron) infrared emission layer is introduced, so that the thermal quality of the heating electrode layer is greatly reduced while the high infrared emission capability of the MEMS infrared light source is ensured, the modulation frequency of the MEMS infrared light source is improved, and the heating power consumption is further reduced.