43 results about "Temperature receptor" patented technology

The invention provides a saline water spray box, which comprises a main box body, a secondary box body and a control board, wherein the main box body comprises a testing box and a top cover; the secondary box body is arranged on one side of the main box body; a saline water box and a saturated air box are arranged in the secondary box body; the control board is arranged on the upper surface of the secondary box body; a temperature measuring device, a salt mist metering device and a spray tower are also arranged in the testing box; the temperature measuring device is a temperature sensor which is arranged on a side wall in the testing box; the salt mist metering device comprises a salt mist collector and a mist quantity meter; the mist quantity meter is arranged on the front side of the main box body; the salt mist collector is arranged in the testing box and is communicated with the mist quantity meter; and the spray tower is arranged in the testing box and is communicated with the saline water box and the saturated air box. The saline water spray box has the beneficial effects that the temperature and the spray capacity can be automatically adjusted according to real-time data obtained by the temperature measuring and mist quantity measuring devices so as to fulfill the aim of stabilizing test conditions.

The present invention discloses one kind of actuating mechanism for fire preventing smoke exhausting valve. The actuating mechanism includes one main rotating shaft assembly, one moving shelf assembly, one electromagnet, one micro switch, one pendulum link assembly, one electric line assembly, one temperature receptor assembly, one flameproof enclosure and one flameproof enclosure cover, sealing structures and one moving hammer amplifying mechanism, which is set between the electromagnet and the pendulum link assembly to increase the torque of the main rotating shaft and has one end connected to the moving iron core inside the electromagnet and the other end fitting the pendulum link assembly. The present invention can meet the requirement of preventing fire and exhausting smoke, and has also functions of suppressing explosion, preventing erosion, preventing moisture and preventing radiation.

The invention provides an air-conditioning system for a machine room. The air-conditioning system for the machine room comprises a refrigerating system used for providing cold air for the machine room, and a fan, wherein the refrigerating system comprises an evaporator, a compressor, a condenser and an electronic expansion valve, the evaporator is connected with the compressor, the compressor is connected with the condenser, the condenser is connected with the electronic expansion valve, and the electronic expansion valve is further connected with the evaporator, thus forming a refrigerating cycle; the fan is arranged at the bottom of a cabinet in the machine room. The air-conditioning system for the machine room further comprises a temperature sensor, a humidity sensor, a processor, and a central control room PC (personal computer). The air-conditioning system for the machine room provided by the invention has the beneficial effect of being capable of providing a refrigerating capacity according to the actual needs of the machine room, thus improving the refrigerating efficiency.

The invention provides a comfortable energy-saving air conditioning unit comprising an air conditioner indoor unit, an air conditioner outdoor unit, an air supply outlet and an air return port, an air supply pipe connected with the air supply outlet, an air return pipe connected with the air return port, and a DDC. The air supply outlet and the air return hole are arranged in the air conditioner indoor unit. The air conditioner indoor unit is connected with the DDC. The air return pipe is provided with a return air electric-regulation valve and a return air temperature sensor. One end of a fresh air pipe is communicated with the outdoor air, and the other end of the fresh air pipe is connected to the air return port of the air conditioner indoor unit. The comfortable energy-saving air conditioning unit has the advantages that the requirement for comfort is considered, ambient temperature is effectively controlled and the requirement for energy conservation is also considered.

The invention aims to provide an integrated building ventilation system. The integrated building ventilation system comprises a solar heating device, an air feeding pipe, a purification device, a corridor air pipe and an indoor air feeding pipe, wherein the air feeding pipe, the purification device, the corridor air pipe and the indoor air feeding pipe are connected in sequence; the solar heating device comprises a solar integrated board, a storage battery and a heating device body; the heating device body comprises a circulating pipe, a water pump, a heater, a temperature sensor and a controller; the water pump, the heater and the temperature sensor are arranged on the circulating pipe correspondingly; the circulating pipe is located inside the corridor air pipe; and the storage battery supplies power to an air suction and feeding fan, the water pump, the heater, the temperature sensor, the controller and an electromagnetic valve. According to the integrated building ventilation system, ventilation is achieved while heating is also achieved, and fresh air and a comfortable temperature can be maintained in all floors and all rooms.

The invention discloses a heat dissipation device and a heat dissipation method for a big data analysis and processing terminal. The device comprises a shell, a temperature sensor, a first breathableplate, a collecting box and a motor. A controller is installed on the upper right surface in the shell through screws, the temperature sensor is installed on the inner right surface of the shell through bolts, the first breathable plate is installed on the left surface of the shell through bolts, and springs are welded to the front surface and the rear surface of a fixing plate respectively. The heat dissipation device for the big data analysis and processing terminal is provided with the first breathable plate, the second breathable plate and the fan blades. In the using process, air in the shell and outside air are exchanged through the first breathable plate and the second breathable plate and immediate heat dissipation of the device is facilitated; the fan blades operate when the temperature is too high and immediate heat dissipation of the device is facilitated; meanwhile, the air holes of the first breathable plate and the air holes of the second breathable plate are arranged ina staggered mode, and damage to the electronic elements in the shell caused by the fact that dust directly enters the shell can be reduced conveniently.

The invention discloses a water temperature sensor comprising a temperature sensing outer shell and a plug. A shell hole is formed in the top end of the temperature sensing outer shell. The lower end of the plug is connected with the upper end of a second copper sheet via the shell hole. The lower end of the second copper sheet is connected with one end of a spring. The other end of the spring is connected with the upper end of a first copper sheet. The lower end of the first copper sheet is electrically connected with the upper end of an alarm device. The lower end of the alarm device is electrically connected with the upper end of a temperature receptor. The lower end of the second copper sheet and the upper end of the first copper sheet are connected with insulating paper, and the spring is arranged in the insulating paper. By arranging an internal thermistor, the temperature receptor, the alarm device and the spring, the working effect of the water temperature sensor is obvious, and alarming is performed in case of excessively high temperature, thus an automobile is not liable to be damaged and maintained, and the expenditure can be saved.

The invention discloses demonstration equipment, and particularly relates to fiber floccules energy storage heating demonstration equipment capable of effectively demonstrating difference of energy storage heating effect between different fiber floccules so that production examination of the fiber floccules and information interaction between producers and consumers are facilitated. The fiber floccules energy storage heating demonstration equipment comprises a box body, a heating device, a temperature-detecting device and a power supply. The heating device is installed in the internal part of the box body. The heating device is electrically connected with the power supply. The bottom part of the box body is provided with a drawer, and the middle position of the drawer is provided with a separating plate. The drawer is divided into a first heating chamber and a second heating chamber by the separating plate. The temperature-detecting device comprises a temperature receptor and a temperature displayer.

The invention discloses an intelligent bathroom mirror. The intelligent bathroom mirror comprises a shell, mounting bases are fixedly mounted at the front end of the shell, human body sensors, temperature sensors and lamp belts are arranged on the front ends and the side faces of the mounting bases respectively, a mirror body is attached to the inner sides of the mounting bases, a mounting grooveis formed in the upper end of the mirror body, an infrared detector is arranged at the inner side of the mounting groove, and an opening is formed in the lower portion of the mirror body; a touch screen is arranged at the inner side of the opening, connectors and buckles are arranged at the outer side of the shell, and a heating defogging film is arranged at the rear side of the mirror body; an Android system mainboard is fixedly mounted in the middle of the inner side of the shell and electrified through a wire, and a microphone and a stereophonic horn are arranged at the lower portion and the left portion of the inner side of the shell respectively. The mounting operation can be stably and conveniently carried out, the functions are rich, and the condition of the human body can be monitored; meanwhile, through the internet of things, other devices in a toilet are subjected to networking control, and the practicability is high.

The invention provides an automatic bookcase, which comprises an automatic bookcase body, wherein an inside environment regulating panel is arranged at the right upper end of the front side surface of the automatic bookcase body; a ventilator is arranged on the right upper end of the right side surface of the automatic bookcase body; a touch screen type book selecting device is arranged at the left side of the inside environment regulating panel; a temperature sensor is arranged on the left side surface inside the automatic bookcase body; a bookshelf made of abrasion-resistant materials is arranged inside the automatic bookcase body; and a book outlet and inlet opening is formed in the right lower side of the front side surface of the automatic bookcase body. The automatic bookcase has the advantages that the installation is simple and easy; the design is reasonable; a product of the automatic bookcase can realize the automatic storage and taking of books; in addition, the environment temperature, humidity and the like can be intelligently controlled; the completeness of the books can be maintained to the maximum degree; in addition, the automatic sorting can be performed; and convenience and high efficiency are realized.

The invention relates to the field of storage battery dispensing, and discloses a dispensing device for storage battery processing and a working method thereof. The dispensing device comprises a dispensing box, and the interior of the dispensing box is composed of a glue chamber and a mold which are integrally formed. A heating net is arranged in the glue chamber, and a temperature sensor is fixedly arranged on the wall face of one side of the glue chamber. A connecting column is fixedly arranged in the middle of the top face of the dispensing box, and an air cylinder is arranged in the connecting column. A piston is arranged in the air cylinder, and a pressure sensor is arranged on the bottom face of the piston. Whether a storage battery corresponds to the mold or not is judged through aposition recognition frame. If yes, the dispensing device sinks to enable the mold to be attached to the surface, needing dispensing, of the storage battery; and then the piston is pressed downwards through mechanical force application, so that the pressure in the air cylinder is increased, and glue in the glue chamber is extruded to the position needing dispensing through the mold. If the storagebattery does not correspond to the mold, the mold cannot sink. Batched dispensing can be efficiently conducted on the storage battery through the above manner.

The invention belongs to the technical field of flow field testing, and discloses a full-parameter probe for measuring a two-dimensional steady-state flow field of a boundary layer of an outer wall ofa hub. The full-parameter probe comprises a probe head, pressure sensing holes, a temperature sensor, a heat-insulating sealing element, a pressure guiding pipe, a temperature sensor cable leading-out channel, a pressure guiding pipe leading-out channel and a probe supporting rod. The probe head is cylindrical, and the three pressure sensing holes which are arranged in a shape like a Chinese character 'pin' and are not communicated with one another are formed in the windward side of the probe head; an arc groove is formed in the leeward side of the probe head in the axial direction, and the temperature sensor is arranged in the arc groove so as to prevent a main flow from directly impacting the temperature sensor. Compared with an existing boundary layer probe, the full-parameter probe can simultaneously measure the total temperature, the static temperature, the total pressure, the static pressure, the deflection angle, the Mach number, the density and the two-dimensional speed of thetwo-dimensional steady-state flow field in the boundary layer of the outer wall of the hub, can also measure the flow field in the boundary layer in an air inlet channel of an aero-engine, and has the advantages of being small in size, high in spatial resolution, high in measurement precision and high in reliability.

The invention provides an alternating-current low-voltage power distribution cabinet which comprises a power supply box and a power distribution box. The lower surface of the power distribution box is fixedly connected with the left end of the upper surface of a heat conduction plate, a temperature sensor is arranged in the middle of the upper surface of the heat conduction plate, and a fire extinguishing box is arranged at the right end of the upper surface of the heat conduction plate. A direct-current storage battery is arranged on the upper portion of the left side face in the power supply box, a positive electrode end and a negative electrode end are arranged on the right side face of the direct-current storage battery, and a first fixed resistor and a second fixed resistor are connected between the right side face of the positive electrode end and the right side face of the negative electrode end in series. A third fixed resistor is connected in series between the lower side surface of the first fixed resistor and the lower side surface of the large induction coil through a wire; and the upper side surface of the large induction coil is electrically connected with the upper side surface of the second electricity leading sheet through a wire. According to the technical scheme, the technical problems that in the prior art, the direct current-to-alternating current conversion capacity is not achieved, and automatic power-on, automatic fire extinguishing and the like cannot be achieved are effectively solved, and application and popularization are facilitated.

The invention relates to a device for automatically fermenting and detecting ice wine, and a method for brewing ice wine by using the device. The device comprises a fermentation tank (1), a surrounding copper pipe (2), a control center (3) and a display device (4), wherein the surrounding copper pipe (2) is arranged outside the fermentation tank and is internally filled with constant temperature cold water; the fermentation tank is internally provided with an air pressure gauge (5), a visual probe (6), an alcohol content tester (7), a temperature sensor (8) and a pH meter (9). The corresponding parameters of fermentation liquor and the fermentation tank are set by means of the control center, so that the methyl alcohol content of the ice wine is enabled to be less than 200mg / L.

The invention discloses an intelligent climate adjusting device which comprises an air draft component and a detection component and further comprises an irrigation water tank used for buffering stored water. The cold end of the thermoelectric power generation assembly is located in the irrigation water tank, and the hot end is exposed in the greenhouse environment; the atomization assembly is arranged in the irrigation water tank; the detection part comprises a humidity sensor which is used for detecting the humidity in the greenhouse and is electrically connected with the air draft part so as to control the air draft part to dehumidify; the temperature sensor is used for detecting the room temperature in the greenhouse and the water temperature in the irrigation water tank; the storage battery is electrically connected with the temperature sensor so as to acquire the room temperature and water temperature data and execute a power supply action according to the room temperature and water temperature data; the atomization assembly is electrically connected with the temperature difference power generation assembly, the humidity sensor and the storage battery so as to obtain a power source and humidity data, and atomization action is executed according to the humidity data. The planting environment can be improved, and the yield stability is improved.

The invention discloses a computer case with a heat sink. The computer case comprises a case body and a bracket arranged at the bottom of the case body, wherein a movable cover plate is arranged on one side of the case body, micro cooling fans are arranged on the movable cover plate, and a temperature sensor is further arranged on the case body. According to the invention, four foldable bracket structures are arranged at the four corners of the bottom of a notebook computer, so that the distance between the computer and a desk surface is increased, the heat dissipation is facilitated, and the use is convenient. The computer case is further provided with the micro cooling fans placed at the bottom of the computer, and the micro cooling fans are light in weight, portable, and good in the heat dissipation effect. In addition, the case is further provided with the temperature sensor, so that a user is reminded of turning on the micro cooling fans to dissipate heat when the temperature is higher than a certain value.

The invention discloses a high-efficiency automatic controlled heating water heater. The high-efficiency automatic controlled heating water heater comprises a cold water inlet, a machine case, an inner container, a water storage box, a heating rod, a dry-heating-resistant device, a hot water outlet, a water-break detection ball, a water inlet valve controller, a temperature indicator, a temperature receptor, a control panel, a regulation control cabinet, a binding post, a heating processor and a circuit box. The cold water inlet is connected with the machine case. The water-break detection ball is located below the cold water inlet. The heating rod is connected with the dry-heating-resistant device. The temperature indicator is connected with the control panel. The regulation control cabinet is located below the control panel. The binding post is connected with the machine case. The circuit box is fixed to the position below the regulation control cabinet. The high-efficiency automatic controlled heating water heater is provided with the temperature receptor, and control over the water temperature is better. The water heater is provided with an anode magnesium-aluminum rod descaling device, and power consumption is low. The water heater is made of an aluminum alloy material, the practicality is more prominent. Time is saved. The cost is lowered. The purposes of time saving and trouble saving are achieved.

The invention discloses a multifunctional colloidal soil stirring device. The multifunctional colloidal soil stirring device comprises a tank body (2), wherein a feeding port (1) is fixedly mounted at the center of the top of the tank body (2); a window (12) and a controller (13) are further arranged on the tank body (2); one of two motor and speed regulator groups comprises a first motor (4) and a first speed regulator (5), and the other of the two motor and speed regulator groups comprises a second motor (10) and a second speed regulator (9); the first speed regulator (5) and the second speed regulator (9) are connected with two ends of a stirring rotating shaft (15) respectively; the motors and the corresponding speed regulators are electrically connected; stirring blades (11) are mounted on the stirring rotating shaft (15); a heating layer (7) is arranged at the bottom of the tank body (2); an annular heater (14) is arranged in the heating layer (7); an insulating layer (3) is arranged on the inner wall of the tank body (2); a temperature sensor (8) is arranged in the position, close to the bottom of the tank body (2), of the insulating layer (3). The stirring blades are arranged on the side surface of the colloidal sol tank body, so that the colloidal sol effect is improved.

The invention discloses an Internet of Things based poultry housing heating device. The device comprises a poultry housing, a controller, a temperature sensor, a frequency converter and an air heater. The temperature sensor is arranged in the poultry housing and is connected with a first port of the controller. The air heater is electrically connected with the frequency converter which is in communication connection with the second port of the controller. A wireless communication transceiver is in communication connection with the third port of the controller and a remote terminal. According to the device, the temperature in the poultry housing is monitored by the temperature sensor, and detection values are sent to the controller which analyzes the detection values, and the analyzed air pressure values are sent to the remote terminal by the wireless transmitter, the remote terminal receives sent information and sends control instructions to the wireless receiver after giving related responses, and accordingly, the temperature in the poultry housing is adjusted, connection and control through things are achieved, and the value of the Internet of Things is presented.

The invention discloses a multifunctional ceramic manufacturing table, which comprises a glaze blowing pot, an instrumental case, an interlayer, a lifting layer, a drawer, a cabinet, a pulley, a pedal, table leg plates, a pulling plate, a table top, an expansion plate, a table lamp, a rotary time lampshade, a temperature sensor, a solar electroplate, a base, a water pool, a clay disc, a rotating disc and a tool shelf. The expansion plate is mounted at the upper end of the table top, the interlayer is arranged on one side of the table top, and the pulling plate is mounted on one side of the lower end of the table top; the drawer is mounted on the other side of the lower end of the table top, and the cabinet is mounted at the lower end of the drawer; and the lifting layer is mounted on one sides of the table leg plates. The multifunctional ceramic manufacturing table is scientific and reasonable in structure and safe and convenient to use, a drawing can be conveniently placed by a manufacturer, the time can further be reasonably arranged, the desired brightness can be obtained even if the multifunctional ceramic manufacturing table is located in different environments, the multifunctional ceramic manufacturing table is very easy to move and fix no matter how cumbersome the multifunctional ceramic manufacturing table looks, and arrangement is very convenient at the end no matter how messy during manufacturing.

The invention discloses a battery PACK thermal field change evaluation method based on data, and belongs to the field of automobile batteries. The method specifically comprises the following steps of:collecting temperature data output by a plurality of temperature sensors arranged in a battery PACK through a BMS (Battery Management System), determining a reporting period, and periodically reporting the collected temperature data to a server according to the reporting period; determining the effective interval of the temperature data, screening the temperature data by the server according to the effective interval, and storing the temperature data in the effective interval; determining a data accumulation period, and after the data accumulation period is reached, starting data analysis processing; and determining a data processing period, and carrying out processing analysis on the stored latest temperature data by the server every other data processing period. According to the method,the battery PACK thermal field can be accurately evaluated, the abnormality of the battery PACK can be predicted and identified, and the abnormal condition can be alarmed, so that safety accidents are effectively avoided.

The invention discloses a damp-proof and moisture-proof intelligent switch cabinet. The damp-proof and moisture-proof intelligent switch cabinet comprises a device body, a shell, a transformer, a temperature receptor, an air blowing fan, a humidity sensor, a temperature sensor, a display screen, a bus chamber, a humidity receptor, a cooling partition plate and a base, wherein a storage battery isarranged below a solar cell panel, the transformer is arranged at a right side of the device body, the air blowing fan is arranged at an upper end of the transformer and is fixedly connected with theshell, a thermal resistance wire is arranged at an upper part of the air blower and is electrically connected with the storage battery, the temperature receptor and the humidity receptor are respectively fixed on a lower right side wall of the shell and are electrically connected with the display screen, the bus chamber is arranged at a left lower end of the device body, and the cooling partitionplate is arranged at a lower end of the device body and is fixedly connected with the base. The damp-proof and moisture-proof intelligent switch cabinet has the beneficial effects of high-efficient cooling, energy saving and environmental friendliness and is applicable to different environments very well.

The invention relates to an automatic bioprotein temperature fine detection control device which comprises a temperature control system. The system comprises an efficient heater, a heating circuit, atemperature sensor, a shaping amplifying circuit, an A / D conversion device, a control and display center, a fine adjustment compensator and a sample container. Temperature control is researched according to the temperature requirement in an automatic biochip bioprotein detection process, great effects are achieved through pulse heating through the efficient heater matched with a control algorithm,bioprotein activity is unaffected, and the application requirement of an automatic biochip bioprotein detection analyzer can be met.

The invention discloses a water temperature sensor comprising a temperature sensing shell and a plug. The top end of the temperature sensing shell is provided with a shell hole. The lower end of the plug is connected with the upper end of a second copper sheet through the shell hole. The lower end of the second copper sheet is connected with one end of a spring. The other end of the spring is connected with the upper end of a first copper sheet. The lower end of the first copper sheet is electrically connected with the upper end of an alerter. The lower end of the alerter is electrically connected with the upper end of a temperature receptor. The lower end of the second copper sheet and the upper end of the first copper sheet are connected with insulating paper, and the spring is arranged in the insulating paper. An internal thermistor, the temperature receptor, the alerter and the spring are arranged so that the working effect of the sensor is enabled to be substantial, alarming is performed in case of excessively high temperature, and thus the automobile is not liable to be damaged and maintained and the expenditure can be saved.

The invention discloses a super-high temperature Vicat and thermal deformation testing machine, and relates to the field of test instruments. The testing machine comprises a heating furnace, a measuring structure, and an elevating structure. The bottom of the heating furnace is provided with a pumping chamber. A heating tube is arranged in the heating furnace. A sample can be placed in the bottomof the measuring structure. The measuring structure stretches into the heating furnace. The temperature is measured by a temperature sensor. The elevating structure controls the measuring structure soas to determine whether the measuring structure stretches into the heating furnace or not. The heating tube is tightly arranged in the furnace, the pumping chamber is arranged in the bottom of the furnace to increase the temperature of the interior of the furnace, the measuring structure is arranged in the furnace, multiple measuring units are arranged on the measuring structure and cooperate with each other, thus the super-high temperature Vicat and thermal deformation tests can be preformed, furthermore, alumina powder is taken as the heat conduction medium, the safety is enhanced, environment is better protected, the furnace is in a cylindrical shape, the whole measuring structure is compact, the heat loss is reduced, the heat is converged, the temperature range is wide, the structureis reasonable, the operation is convenient, and the precision is high.

The invention belongs to the technical field of flow field testing, and discloses a full-parameter probe for measuring a high-subsonic three-dimensional steady-state flow field, which comprises a probe head, pressure sensing holes, a convective heat exchange hole, a temperature sensor, a heat insulation sealing piece, a pressure guide pipe, a temperature sensor cable, a temperature sensor cable lead-out channel, a pressure guide pipe lead-out channel and a probe support rod. Three pressure sensing holes are formed in the windward side of the cylinder of the probe head, one pressure sensing hole is formed in the windward side of a blunt cone, and the temperature sensor is placed in the convection heat exchange hole in the leeward side of the probe head so as to be protected against high-speed main flow impact. Compared with an existing probe, the probe can measure the total temperature, the static temperature, the total pressure, the static pressure, the deflection angle, the pitch angle, the mach number, the density and the three-dimensional speed of the high-subsonic three-dimensional steady-state flow field at the same time, is suitable for three-dimensional steady-state flow fields among inlets, outlets and impeller stages of high-subsonic air compressors, fans, compressors and the like, and can realize high-precision refined multi-parameter flow field measurement.

The invention discloses an electronic compass applicable to going-out. The electronic compass comprises a compass body, a pointer and an electronic power source. The pointer is arranged inside the compass body, and a temperature sensor is connected to the interior of the compass body; an angle sensor is arranged inside the temperature sensor, indication lines are arranged on the surface of the compass body, and scale lines are arranged on the surface of the compass body; the angle sensor and the electronic power source are electrically connected; the angles of the indication lines are the same. The electronic compass has the advantages that by arranging the angle sensor, the angle sensor can adjust the electronic power source, the scale lines on the compass body have the function of facilitating reading, the device has the advantages of being simple in structure, compact in connection between the structure, long in service life, good in using performance, easy and convenient to operate, high in safety and practicability and large in application range, and the angle sensing effect is achieved by arranging the angle sensor.

The invention discloses an automatic stable control and detection device for a urine protein. The automatic stable control and detection device comprises a temperature control system, the temperaturecontrol system comprises a sample container, electrooptic parts, photoelectric parts, a control and display center, a temperature sensor, a heating part and a low frequency oscillator, wherein the heating part comprises a heating circuit; the electrooptic part mainly comprises a deuterium lamp, a tungsten lamp and corresponding power supplies, and the wavelength of emitted ultraviolet light or visible light is arranged to 200-900 nm. A photoelectric system transforms an optical signal passing through a sample and transmitted by the photoelectric system into an electric signal and comprises a photoelectric tube, a photomultiplier, a silicon photocell and a diode array; the sample container is square, and chooses the material of quartz; more than two pairs of electrooptic parts and photoelectric parts are arranged, each pairs of the electrooptic parts and photoelectric parts are arranged in parallel, so that the lengths of the two pairs passing through the sample are the same; and the wavelength and the intensity of the electromagnetic wave emitted by each pair of the electrooptic parts are the same. The low frequency oscillator is arranged, so that the low frequency oscillator is started when the difference of intensities received by a plurality of photoelectric parts is more than 3%, and the fluidity of a sample liquid is improved.

The present invention discloses one kind of actuating mechanism for fire preventing smoke exhausting valve. The actuating mechanism includes one main rotating shaft assembly, one moving shelf assembly, one electromagnet, one micro switch, one pendulum link assembly, one electric line assembly, one temperature receptor assembly, one flameproof enclosure and one flameproof enclosure cover, sealing structures and one moving hammer amplifying mechanism, which is set between the electromagnet and the pendulum link assembly to increase the torque of the main rotating shaft and has one end connectedto the moving iron core inside the electromagnet and the other end fitting the pendulum link assembly. The present invention can meet the requirement of preventing fire and exhausting smoke, and has also functions of suppressing explosion, preventing erosion, preventing moisture and preventing radiation.