113results about "Thermometers using material expansion/contaction" patented technology

The present disclosure relates to a system (100) for acoustically detecting a temperature change, the system (100) comprising: at least one conversion element (10) for converting a temperature change into a characteristic sound; an acoustic sensor (40) configured to be mechanically connected to the structure (50) at a distance from the at least one conversion element (10); and a processor (42, 62) coupled to the acoustic sensor (40), in which the at least one conversion element (10) comprises an actuation portion (20) having at least one material having thermal expansion properties such that a change in temperature causes a movement of the actuation portion (20) that causes the conversion element (10) to generate a characteristic sound and conduct the characteristic sound into the structure (50), the acoustic sensor (40) is configured to record a characteristic sound generated by the conversion element (10) as a structural sound propagating through the structure (50), and the processor (42, 62) is configured to detect a temperature change based on the characteristic sound recorded by the acoustic sensor (40).

The invention provides a temperature tactile collaborative response flexible pressure sensor and a preparation method thereof, and the sensor comprises an upper electrode which is used for transmitting a capacitance or resistance signal; the conductive nano composite material layer is used for forming a conductive path with the upper electrode and transmitting a resistance signal; the temperature sensitive insulating layer is arranged between the upper electrode and the conductive nano composite material layer and is used for preventing the upper electrode from being in contact with the conductive nano composite material layer; and the conformal electrode microstructure array is arranged below the conductive nano composite material layer and is used for forming a capacitor with the upper electrode and forming a conductive path with the upper electrode and the conductive nano composite material layer. Whether the environment temperature reaches the dangerous temperature or not is determined according to the type of an electric signal output by the sensor, and active adjustment of touch is achieved through temperature stimulation.

The present disclosure relates to a system (100) for acoustic detection of a physical event, the system (100) comprising: at least one conversion element (10) for converting a physical event into a characteristic sound; an acoustic sensor (40) configured to be mechanically connected to the structure (50) at a distance from the at least one conversion element (10); and a processor (42, 62) coupled to the acoustic sensor (40) wherein the at least one conversion element (10) is configured to react to the physical event by generating a characteristic sound and to introduce the characteristic sound into the structure (50), the acoustic sensor (40) is configured to record the characteristic sound generated by the at least one conversion element (10) as a structure propagation sound propagating through the structure (50), and wherein the processor (42, 62) is configured to detect the physical event based on the characteristic sound recorded by the acoustic sensor (40).

The utility model discloses a kind of dry reed tube temperature sensing devices, including containing mechanism, sealing mechanism and magnetic control mechanism, the containing mechanism includes jar body, the jar cover of buckling in the jar body front side, sealing mechanism, the sealing mechanism includes two sealing rings slidingly connected between the jar body and jar cover. In the utility model, jar cover closes jar body front side, and the sealing ring of pipe body fixation is realized joint sealing;Subsequently, left side control valve is opened, and cavity is completed vacuumizing and inert gas (such as nitrogen) injection through corresponding pipe body, after closing the valve, right side control valve is opened, and high-temperature resistant silica gel or epoxy resin is injected through the pipe body. After solidification, resin occupies jar body main body space, residual inert gas is evenly dispersed in resin matrix with micrometer level bubble, forms inert gas-resin complementary protection system, constructs moisture-proof, oxidation-resistant, impact-resistant and temperature-stable working environment for dry reed tube, significantly prolongs its service life.

The invention relates to the technical field of temperature protector detection, in particular to a temperature protector critical flip acoustic feature detection method and system, and the method comprises the steps: obtaining an original sound signal of a bimetallic strip temperature protector; performing dynamic closed-loop suppression on the original sound signal to generate a sound signal after noise reduction; carrying out acoustic feature recognition on the sound signal, and generating an acoustic feature set representing bimetallic behavior characteristics; generating an acoustic parameter compensation variable according to the transmission process behavior of the sound wave in the high-temperature gas; processing the acoustic feature set and the acoustic parameter compensation variable based on a behavior recognition analysis process, and outputting an action feature sequence of the bimetallic strip temperature protector; and when the action characteristic sequence displays a continuous action characteristic state, confirming that the bimetallic strip temperature protector has completed critical overturning. According to the invention, the problems of critical upset misjudgment and incapability of analyzing the pre-upset energy storage process caused by thermal noise interference in a traditional electric heating detection method are effectively solved.

The invention relates to the technical field of industrial processing, in particular to temperature monitoring equipment for ion nitriding treatment. Comprising an outer frame, a first vertical column, a second vertical column, a third vertical column, a cross beam and a fan-shaped ruler, the outer frame comprises four rigid rectangular materials which are connected end to end, and one end point of each vertical column is perpendicularly and fixedly connected with the inner surface of the top of the outer frame; the second vertical column and the transverse column comprise a first transverse column, a second transverse column and a rotary connecting rod, the first transverse column is parallel to the second transverse column, the two ends of the rotary connecting rod are fixedly connected with the first transverse column and the second transverse column respectively, one end of the vertical column is vertically and fixedly connected with the inner surface of the top of the outer frame, and the other end of the vertical column is fixedly connected with the inner surface of the top of the outer frame. One end of the second vertical column is perpendicularly and fixedly connected with the inner surface of the bottom of the outer frame, the other end of the second vertical column is hinged to one side wall of the transverse column, the end, away from the rotary connecting rod, of the second transverse column is rotationally connected with the central angle of the fan-shaped ruler, and one end of the third vertical column is perpendicularly and fixedly connected with the inner surface of the bottom of the outer frame.

The invention relates to the technical field of energy storage devices, and particularly discloses a modular liquid cooling energy storage device which comprises an energy storage cabinet assembly, a first cabinet door is installed on one side of the front face of the energy storage cabinet assembly, a second cabinet door is installed on the other side of the front face of the energy storage cabinet assembly, and a third cabinet door is installed on one side of the back face of the energy storage cabinet assembly. A liquid pumping assembly is installed on the other side of the back face of the energy storage cabinet assembly, a liquid storage box assembly is installed on the inner side of the energy storage cabinet assembly, a liquid pumping matching assembly is installed on one side of the liquid storage box assembly, and a circulating heat absorption assembly is installed on the top of the liquid storage box assembly. After the temperature of the liquid in the liquid storage tank assembly is reduced, the temperature of the liquid on the inner side of the liquid expansion cylinder is reduced, the volume of the liquid in the liquid expansion cylinder is shrunk to the original volume, the arc-shaped telescopic column is shrunk to the original position, cooling can be automatically started after the temperature in the equipment is increased, and the equipment is convenient to manage.

The present invention relates to the technical field of thermal runaway management for lithium-ion batteries, and more particularly to a method for detecting and locating overheating in lithium-ion batteries or battery packs using temperature sensors. The temperature sensor is based on a shape memory alloy or bimetallic strips. The lithium-ion batteries or battery packs are equipped with these temperature sensors and arranged in a matrix configuration, enabling detection and localization of overheated batteries within the pack. This method addresses the challenge of identifying overheating in large-scale battery packs and energy storage power stations, thereby improving the efficiency of detection and localization. It also facilitates timely identification and precise location of batteries that may be undergoing thermal runaway.

The invention discloses a device for testing the temperature of a piston in real time, and the device comprises at least one temperature sensor which is disposed at a temperature measurement point of the surface of the piston, the temperature measurement part of the temperature sensor is exposed out of the surface of the piston, and a K-type thermocouple is disposed in the temperature sensor; the temperature measurement module is mounted at the bottom of a pin seat of the piston and comprises a heat insulation plate, a chip, a high-temperature-resistant battery and a temperature control switch, and the heat insulation plate is in contact with the bottom of the pin seat; the chip is used for receiving the temperature data transmitted by the temperature sensor and converting the temperature data into a wireless temperature signal; the high-temperature-resistant battery supplies power to the chip; the temperature control switch is arranged between the high-temperature-resistant battery and the chip and used for sensing the temperature transmitted by the piston. The temperature sensor penetrates through an internal channel of the piston through a wire and is connected with the chip; the signal receiver is arranged outside the internal combustion engine and used for receiving the wireless temperature signal sent by the temperature measuring module; and the upper computer is connected with the signal receiver and is used for converting the wireless temperature signal into a temperature numerical value and displaying and recording the temperature numerical value.

The embodiment of the invention provides a detection method of a thermal overload protector, and relates to the technical field of thermal overload. The method comprises the following steps: sampling a thermal overload protector to-be-detected set to obtain a plurality of thermal overload protector samples, and obtaining test tripping time corresponding to each thermal overload protector sample; determining the tripping hot bending deflection corresponding to each thermal overload protector sample; according to a first hot bending deflection corresponding to a predetermined action range lower limit current, a second hot bending deflection corresponding to an action range upper limit current and tripping hot bending deflections corresponding to the plurality of thermal overload protector samples, determining a process capability index corresponding to the thermal overload protector samples; and determining the process capability of the thermal overload protector according to the process capability index corresponding to the thermal overload protector sample. The embodiment of the invention is used for providing a technical scheme which avoids the problem of high cost caused by full inspection and can realize effective quality control.

The utility model relates to the technical field of temperature metering, and discloses a portable temperature metering device, which comprises a mercury thermometer, a temperature measuring disc, a temperature sensor, a temperature sensor, a temperature sensor, a temperature sensor, a temperature sensor, a temperature sensor, a temperature sensor, a temperature sensor and a temperature sensor, and is characterized in that the mercury thermometer is internally provided with a slim tube, and mercury is arranged in the slim tube; the mercury thermometer is bent and deformed into a spiral line shape and is fixed on the top surface of the temperature measuring disc, and a measuring end is arranged on the outer side and is connected with the top surface of the temperature measuring disc; and the shell is sleeved and fixed above the temperature measuring disc, and the mercury thermometer is arranged in the shell. After the centrifugal structure is rotated, the temperature measuring disc and the shell are rotated through the centrifugal structure, and mercury in the mercury thermometer flows to the measuring end along the thin tube under the action of centrifugal force. Compared with the prior art, the utility model has the advantages that: compared with the shape of a strip, the disc-shaped pen container has a smaller storage length and is more convenient to carry.

A sensor arrangement has a structure extending along a length, an optical fibre carrier, and an optical fibre sensor carried by the optical fibre carrier. The optical fibre carrier is fixed to the structure proximal to each end of the structure and is formed of a first carrier portion and a second carrier portion that are movable relative to each other and is formed substantially of a material having a first coefficient of thermal expansion. The optical fibre sensor has a single measurement point and is fixed to the optical fibre carrier either side of the single measurement point; and the structure is formed of a material having a second coefficient of thermal expansion which is different to the first coefficient of thermal expansion

The present application relates to the technical field of power system safety protection and fire fighting, in particular to an underground pipe gallery cable joint overheating warning device, and an automatic fire extinguishing device and system thereof. The underground pipe gallery cable joint overheating warning device comprises a shell, a heat-sensitive driving mechanism and a warning module. The shell is used for passing the cable and the cable joint is located in the shell. The heat-sensitive driving mechanism senses the temperature change of the cable joint through an SMA spring to produce deformation to drive the slider to slide relative to the support rod. The warning module uses the SMA spring as the core temperature sensing driving element, uses the temperature-induced phase change characteristics to generate mechanical driving force, triggers the indicator to pop up to the ground for warning. Therefore, the present application performs overheating warning for the internal part of the cable joint, does not need to rely on external power supply, and can resist harsh environment, thereby solving the problems of monitoring blind area of the cable joint caused by difficulty in monitoring the core temperature of the cable joint, and external power supply of the electronic monitoring device.

A measurement system includes: a vibration-driven energy harvesting unit that generates electric power from sound, vibration, or displacement; a power supply controller that controls an amount of power consumption of a power supply based on the electric power generated by the vibration-driven energy harvesting unit; a detector that is driven by electric power supplied by the power supply controller and detects an environment state quantity; and a transmitter that is driven by electric power supplied by the power supply controller and transmits information regarding the environment state quantity detected by the detector.

The present application relates to the technical field of overload protection, and particularly relates to a motor winding embedded overload protector, which comprises a protector body embedded in a stator body and an embedding structure; the stator body comprises an insulation framework and winding assemblies arranged at intervals between the insulation framework; the inside of the protector body comprises a temperature-sensitive metal sheet; the embedding structure comprises a heat-conducting pressing sheet and an extended cover plate, the heat-conducting pressing sheet presses the protector body against one end of the winding assembly; the heat-conducting pressing sheet and the temperature-sensitive metal sheet correspond to each other in position and shape; one end of the extended cover plate is in contact with the winding assembly, the extended cover plate conducts the heat of the winding assembly to the temperature-sensitive metal sheet through the heat-conducting pressing sheet, the center of the temperature-sensitive metal sheet is provided with a center hole, and a plurality of inner division grooves are radially arranged on the outer peripheral edge of the center hole, the present application realizes stable installation and improves protection sensitivity.

The broadband light source includes a confocal sensor assembly configured to measure a surface of a rotatable drum covered with a plasma formation target material. The broadband light source includes a laser source configured to direct pulsed illumination at the rotatable drum to excite the plasma formation target material and emit broadband light as the drum is angularly rotated and axially translated. The broadband light source includes a controller configured to direct the confocal sensor assembly to transmit a confocal light signal to the rotatable drum, record a calibrated measurement of the distance from the confocal sensor assembly to the rotatable drum, direct a cryogenic cooling subsystem to cryogenically cool the rotatable drum, record one or more distance measurements from the sensor head to the rotatable drum, convert the distance measurements to temperature values, and determine whether a target process condition temperature has been achieved.

The utility model discloses a conductivity meter verification auxiliary device, which belongs to the technical field of instrument metering and comprises a support base, one end of the support base is provided with a notch, the lower surface of the support base is provided with a fixed clamping plate and a movable clamping plate, the fixed clamping plate is fixedly mounted on the lower surface of the support base, and the movable clamping plate is fixedly mounted on the lower surface of the support base. A sliding plate is fixedly installed on the upper surface of the movable clamping plate and located in the notch, and a plurality of fixing screws are fixedly installed on the inner wall of the notch. The supporting base is arranged to be used in cooperation with the fixed clamping plate and the movable clamping plate, and the supporting base can be clamped on the thermostatic bath through cooperation of the movable clamping plate and the fixed clamping plate; and a mercurial thermometer, a standard solution test tube and a conductivity meter temperature probe are respectively inserted into the mercurial thermometer socket, the standard solution test tube socket and the conductivity meter temperature probe socket on the mounting plate, so that a worker does not need to carry out handheld operation during verification, the operation convenience is improved, and smooth operation is ensured.

The invention relates to the technical field of overload protection, in particular to a motor winding embedded overload protector which comprises a protector body embedded in a stator body and an embedded structure. The stator body comprises insulating frameworks and winding assemblies arranged between the insulating frameworks at intervals; a temperature sensing metal sheet is arranged in the protector body; the embedded structure comprises a heat conduction pressing sheet and an extension cover plate. The heat conduction pressing sheet presses the protector body at one end of the winding assembly. The heat conduction pressing sheet and the temperature sensing metal sheet correspond to each other in position and shape. One end of the extension cover plate is in attached contact with the winding assembly, the extension cover plate guides heat of the winding assembly into the temperature sensing metal sheet through the heat conduction pressing sheet, a center hole is formed in the center of the temperature sensing metal sheet in a penetrating mode, and a plurality of inner partition grooves are formed in the center hole in the radial direction towards the peripheral edge. Stable installation is achieved, and protection sensitivity is improved.

The utility model provides a thermometer which is provided with a body, a front-end component and a temperature sensing assembly, one end of the front-end component is connected with the body, the other end of the front-end component is connected with the temperature sensing assembly, the front-end component is provided with a first section and a second section, one end of the first section is connected with the body, and the other end of the first section is connected with the temperature sensing assembly. The other end of the first section is connected with one end of the second section; the temperature sensing component is adjacent to the other end of the second section; wherein the upper surface or the right side surface of the first section is provided with first grooves which are arranged at intervals, the lower surface or the left side surface of the first section is provided with second grooves which are arranged at intervals, and the first grooves and the second grooves are mutually symmetrical.

The utility model belongs to the field of temperature sensing equipment, and particularly relates to an inverted bimetal thermometer which comprises a gauge head 1, the bottom of the gauge head 1 is fixedly connected with an outer protective tube 2, a sleeving piece 3 is arranged in the outer protective tube 2, the top of the sleeving piece 3 is fixedly connected with the gauge head 1, a rotating shaft 4 is arranged in the sleeving piece 3 in a sleeving mode, and the top of the rotating shaft 4 is fixedly connected with a pointer 41. A shaft rod of the rotating shaft 4 is fixedly connected with one end of a bimetal spring 5, the other end of the bimetal spring 5 surrounds the rotating shaft 4 and is spirally arranged in the direction away from or close to the meter head 1, a first-layer spiral structure is formed, and the end of the first-layer spiral structure spirally expands outwards in the radial direction. The double-metal spring 5 is spirally arranged around the first-layer spiral structure in the direction opposite to the first-layer spiral structure to form a second-layer spiral structure, by parity of reasoning, n layers of spiral structures are formed, n is a natural number and is larger than or equal to 2, and the end of the nth-layer spiral structure in the double-metal spring 5 is fixedly connected with the sleeving piece 3.

The present application belongs to the technical field of liquid metal cooled nuclear reactor measurement, and relates to a temperature and strain measurement device in the solidification process of liquid metal, which can measure the temperature and strain data change rule in the solidification process of liquid metal by measuring the deformation of the cavity inner wall of different materials under temperature change, and the main structure comprises a first cavity, a second cavity, a third cavity, a first capillary and a second capillary, the bottom of the measurement instrument body is composed of two hemispherical cavities closely attached together, the first capillary and the second capillary are respectively connected above the first and second cavities, the instrument container contains liquid metal, the test sample is immersed in the liquid metal, and in the solidification process of the liquid metal, the outer wall of the third cavity absorbs the shrinkage deformation in the solidification process of the liquid metal, so that the temperature strain change value in the solidification process of the liquid metal can be accurately measured; the overall structure is scientific and reasonable, easy to use, has good high-temperature resistance effect, high measurement precision and long service life.

The invention discloses an overload protection power distribution cabinet and a bus load distribution method, and relates to the technical field of power electronic components, the overload protection power distribution cabinet comprises a power distribution cabinet body, the inner wall of the power distribution cabinet body is fixedly connected with a layered plate, and the side wall of the top end of the layered plate and the side wall of the top end of the power distribution cabinet body are both provided with a plurality of corresponding wire inlet holes. When the surface temperature of multiple strands of wires in the power distribution cabinet body is regularly detected, external wires are automatically separated through the adsorption shell and the clamping ring structure, internal wires are effectively exposed, then the temperature sensor automatically detects the surface temperature of the corresponding wires, whether overload is about to occur or not is judged according to a temperature measurement result, and once a risk is recognized, the power distribution cabinet is timely started. The load current of the bus where the electric wire is located is automatically redistributed, the current of the line is reduced, overload is prevented, the position of the electric wire does not need to be manually adjusted, and the temperature detection efficiency and the coverage integrity are effectively improved.

The invention belongs to the technical field of battery detection, and discloses an electric vehicle battery temperature comprehensive detection device, which comprises a detection master control module and an outer side temperature detection mechanism, and is characterized in that the two sides of the detection master control module are symmetrically provided with assembling assemblies, and the assembling assemblies are vertically symmetrically distributed between adjacent battery modules; an elastic supporting piece is elastically connected between the upper assembling assembly and the lower assembling assembly. According to the invention, the gap temperature detection mechanism located in the gap between the adjacent batteries is matched with the outer side temperature detection mechanism on the outer surface of the battery module, so that the multi-dimensional comprehensive monitoring of the battery temperature field is realized, and the elastic support piece with the temperature sensing plate is arranged in the core hot area between the adjacent batteries; compared with traditional point-mode temperature measurement, the temperature field distribution of the whole battery pack can be reflected more comprehensively and truly, and missing detection of local overheat points is effectively avoided.

The present application relates to the technical field of liquor detection, and more particularly to a liquor distillation and fermentation detection machine.The present application provides a liquor distillation and fermentation detection machine capable of accurately detecting the degree of liquor.A liquor distillation and fermentation detection machine comprises a support main frame and a support plate, the support plate being slidably connected to the upper part of the support main frame; a protective cover is installed on the support plate; and a testing mechanism is provided on the support plate.The present application winds the pull rope by rotating the winding device, so that the magnet moves outward to separate and loosen the alcohol meter, and the alcohol meter falls into the liquor for degree detection, thereby avoiding the contact of the alcohol meter with anything and the influence of the detection accuracy of the alcohol meter, and then the mercury thermometer is controlled to enter the liquor to detect the real-time temperature in the liquor, and finally the degree on the mercury thermometer and the alcohol meter is checked, and the accuracy of the liquor can be calculated by comparing the alcohol meter, which is simple in operation and accurate in detection result.

This invention relates to the field of distribution transformer fault diagnosis technology, and discloses a distribution transformer explosion-proof early warning device and method based on shape memory alloy temperature rise self-awakening, used for fault early warning and diagnosis of distribution transformers. The device includes: a transformer fault diagnosis probe assembly; a fault driving module, disposed inside the transformer fault diagnosis probe assembly, containing at least one shape memory alloy element; a fault threshold trigger switch, directly mechanically coupled to the fault driving module; and an electronic temperature measurement unit, including a temperature sensor, a main control circuit, a wireless communication module, and a power supply module; the power supply module includes a photovoltaic power collection panel and a supercapacitor. This invention utilizes the shape memory effect of the shape memory alloy element, which shrinks and deforms when the temperature reaches a preset fault threshold, waking up the high-precision electronic temperature measurement unit in a dormant state, achieving power saving during normal dormancy and real-time continuous measurement of fault characteristic variables and wireless early warning.

The present application belongs to the technical field of inductance detection, and particularly relates to a magnetic core inductance testing machine and a detection method thereof, which comprises a beaker, a magnetic core, a temperature raising assembly, a thermometer, a capacitance inductance tester and a support. The beaker is placed on the heat transfer surface of the temperature raising assembly. The magnetic core is bound with a copper wire. The capacitance inductance tester is connected with the copper wire through a terminal. The beaker is filled with water and ice cubes. The mercury end of the thermometer is immersed in the solution in the beaker. The support comprises a base, a vertical rod, a horizontal rod one and a horizontal rod two. The vertical rod is fixedly connected with the base. The horizontal rod one and the horizontal rod two are movably connected with the vertical rod through an adjusting mechanism. The horizontal rod one is wrapped with insulating tape. The copper wire is hung on the insulating tape. The horizontal rod two is fixedly connected with a hook. The thermometer is hung on the hook through a bandage. The present application has the beneficial effect of adding the adjusting mechanism to improve the accuracy of the test data.

The invention discloses a temperature imbalance indicating device, and belongs to the technical field of temperature detection, the temperature imbalance indicating device comprises a thermometer and an interaction structure, the thermometer comprises a meter shell and a pointer rotating relative to the meter shell through a pointer shaft, and the interaction structure is used for generating an interaction trace when the pointer points to a position representing temperature imbalance. According to the thermometer, the interaction structure is installed on the thermometer, when the temperature is unbalanced, the interaction structure can interact with the thermometer and form the interaction trace, whether the temperature is unbalanced or not can be known by observing whether the interaction trace exists or not, and even if the subsequent temperature returns to normal, the interaction trace cannot be eliminated. Compared with the prior art, power is supplied without a power source such as a battery, examination and approval are not needed, meanwhile, the use cost is low, and the thermometer can be obtained through rapid transformation by means of an existing thermometer.

The invention belongs to the technical field of pressure detection instruments and meters, and relates to a mechanical differential pressure indicator structure based on temperature response, which comprises a shell made of a non-magnetic material and internally provided with a large cavity and a small cavity which are coaxial and separated; one end of the small cavity is open; a radial through hole is formed in the bottom of the large cavity and is connected with second oil pressure; the large magnetic column assembly is arranged in the large cavity, a lower cover plate is installed at the opening end of the large cavity, and a large spring is arranged between the lower cover plate and the large magnetic column assembly; the small magnetic column assembly is arranged in the small cavity, and a small spring is arranged between the small magnetic column assembly and the bottom of the small cavity; the temperature-sensitive blocking piece assembly is arranged at the end of the small magnetic column assembly, the temperature-sensitive blocking piece assembly axially limits the small magnetic column assembly in the first temperature range, and axial limiting of the temperature-sensitive blocking piece assembly on the small magnetic column assembly disappears in the second temperature range.

The utility model relates to the technical field of bimetal thermometers, and discloses a multi-angle adjustable bimetal thermometer, which comprises a measuring assembly, an adjusting assembly is arranged at the bottom of the measuring assembly, and a dial plate and connected parts thereof can freely twist up, down, left and right through the arrangement of the adjusting assembly. A user can easily read temperature data at different positions conveniently, the temperature sensor has obvious advantages especially in a scene with a limited installation position or a poor observation angle, dust can be effectively blocked by combining with a corrugated pipe, abrasion and corrosion to internal elements are reduced, a sealing ring is installed at the connection position of key components, and the temperature sensor is convenient to use. The device can stably work in humid, dusty and other severe environments, the surface of the dial and the surface of the pointer are evenly coated with noctilucent powder, the device can clearly read temperature data in a dark environment without the help of an external light source, the use convenience is improved, and meanwhile the application scene of the device is further widened.

The utility model belongs to low -voltage electrical apparatus test technical field discloses a kind of circuit breaker double gold performance detection devices, including rack, first electrode assembly, second electrode assembly and detection component, first electrode assembly and second electrode assembly can be relatively close or far away and be located in rack, for placing circuit breaker between them, first electrode assembly and the first wiring end of circuit breaker are electrically connected separately, second electrode assembly and the second wiring end of circuit breaker are electrically connected separately;Detection component is located in rack, test window is opened on shell, and detection component can pass through test window and detect the performance of bimetallic strip. By connecting circuit breaker whole into energized circuit and passing current, the motion state of bimetallic strip under real working condition of circuit breaker can be accurately simulated, since bimetallic strip is placed inside circuit breaker shell, the temperature environment when bimetallic strip works can be accurately simulated, the influence of temperature and other factors on bimetallic strip performance test is eliminated, and the accuracy and reliability of test result are improved.