110 results about "Mercury thermometers" patented technology

The invention relates to a resin composition for temperature control indication. The resin composition comprises the following ingredients, by weight: 10-90 parts of thermoplastic resin, 10-90 parts of thermoplastic elastomer, 0-5.0 parts of compatilizer, 0.1-5.0 parts of sheet pigment and 0.1-2.0 parts if processing auxiliary agent. Compared with a prior art, the thermoplastic resin composition prepared by the invention can be used for temperature control and alarm indication; compared with traditional temperature display methods of electron microprobe, infrared radiation and mercury thermometer, the preparation method has advantages of simpleness, effectiveness, sensitive reaction and low cost, can be widely applied to temperature control alarm of large and small machinery equipment and apparatuses and has huge market prospect in fields of machinery and material processing, chemical engineering, electronic apparatus and monitor on various experiment processes, etc.

The invention provides a method for compensating the temperature detected by a temperature sensor, belonging to the sensing measurement and control field. Firstly, a Chinese Standard No.1 mercury thermometer is taken as the temperature detecting standard, a mathematic model of the temperature sensor Pt100 is established, and a transfer function is determined; secondly, parameters of the transfer function of the temperature sensor Pt100 is determined through experiments, a third-order model is introduced to describe the temperature property of the temperature sensor, an MATLAB software is used to fit the experimental data, a penalty function is introduced, and a penalty algorithm is determined; and finally, a difference equation realized by computer language is transferred to fulfill the purpose of automatically detecting the temperature. The compensating method ensures that the dynamic property of the temperature sensor Pt100 approaches the dynamic property of the Chinese Standard No.1 mercury thermometer well, which is verified in the practical application well. The method is convenient and easy to implement and has accurate measurement result.

The invention relates to a multi-function bedside nursing work station, which comprises a lower cabinet body, a strut formed by extending upwards from the top of the lower cabinet body, and an upper cabinet body supported by the strut, wherein the side of the lower cabinet body is flexibly provided with a lower cabinet door; drawers are arranged in the lower cabinet body; an electronic body temperature measuring and reading module, a tourniquet storing slot, a module with the functions of reading a mercury thermometer, sterilizing and zeroing, a blood collecting pipe agitating module, an electronic blood pressure sphygmometer and a directional illuminating lamp with adjustable brightness and position are arranged in the drawer; a call and response system and a call button connected to the call and response system are arranged in the strut; and a touch screen computer, a fingerprint registering module, a bar code scanner, a heating thermostat, an infusion monitoring module, a patient state monitoring camera, a transparent infusion bottle storing region and the upper cabinet door connected to the upper cabinet body are arranged in the upper cabinet body.

The invention belongs to the technical field of security and protection body temperature quarantine. The invention particularly provides a human body temperature screening method based on network datadeviation correction. A thermometer is used for measuring the temperature of the individual; if the temperature measurement value exceeds the over-temperature value of the human body, an alarm is given; the alarm information is uploaded to a remote server; mercury thermometer retesting is carried out on an abnormal individual; the re-measured temperature value is also uploaded to the remote server, the remote server returns the two measured values to the thermometer, and closed-loop feedback is formed through the difference value between the re-measured temperature value of mercury and the temperature measurement value of the thermometer to correct the temperature measurement parameters of the thermometer so as to improve the temperature measurement precision of the thermometer and reducethe probability of alarm information omission. Temperature measurement data storage and information sharing are facilitated, query of alarm information is facilitated, and existence of information islands is eradicated, and the safety and the integrity of alarm data are enhanced. On the other hand, a retransmission mechanism can be provided for temperature data which cannot be successfully uploaded for a complex network environment, a repeated acquisition mechanism is provided for temperature degrees which cannot be timely remeasured, and the reliability of uploading the temperature data andreturning the remeasured temperature data is improved.

The invention relates to an automatic packaging machine for a mercury thermometer. The packaging machine comprises a rack, a hopper system, a trough system, a pressing system and a pushing system, wherein the hopper system is fixed on the table of the rack by two supporting plates; a hopper is divided into three parts which are used for holding a housing cover, a thermometer and a housing from left to right in order; the baseplate of the hopper forms certain angle with the horizontal plane, which is more favorable for objects to slide down automatically; the trough system comprises a trough, a substrate, an ejecting cylinder, a linear module and a linear guide track; the pressing system comprises two L-shaped brackets and a cylinder, and the L-shaped brackets are fixed on the table of the rack; and the pushing system comprises a linear module, a servo motor, a pushing needle and a guide plate. The packaging machine uses an intelligent control platform to control the servo motor and carry out stepless speed regulation, the procedures of discharging, pushing and packaging can be controlled preciously, the production efficiency is improved, and the labor intensity is reduced.

The invention relates to multi-station mercury thermometer production equipment relating to the technical field of mercury thermometer production mechanical equipment. The multi-station mercury thermometer production equipment comprises a stand, a base disc, a transmission system, a rotating disc, an intelligent control platform and ten stations, wherein the ten stations comprise five processes of foamed pipe supply, triangular material supply, preheating, foam pipe connection and discharging; the stand is fixedly provided with the transmission system; power drives a main shaft through a servo motor, and then the main shaft is connected with the rotating disc; the rotating disc is fixedly provided with ten working bench clamps; mechanisms for the five processes are respectively fixed on the specified position of the stand (of a disc shape); and when the rotating disc rotates by 36 degrees every time, a machine completes the movement of one station, and the five processes belong to concurrent activities. The invention simultaneously ensures the rotation of the triangular material and the foamed pipe during sintering to enable a sintering position to be uniformly heated, by combining with a production process of a mercury thermometer and creatively adopting a mode that the welding center of the triangular material and the circle center of a rotating cylindrical jig are coincident, thereby greatly enhancing the success rate of the foam connection of the mercury thermometer.

A calibration and identification device for a multi-channel mine temperature sensor that can greatly improve the reliability and accuracy during use of the coal mine temperature sensor. The technical solution is: it is characterized by a constant temperature source, an auxiliary temperature source, a mercury thermometer, a digital communication acquisition and display system and a computer, wherein the constant temperature source is used to generate the liquid at the test temperature; the auxiliary temperature source is used to store the liquid at the desired temperature The mercury thermometer is used to calibrate the actual temperature source temperature according to the temperature range; the digital communication collection and display system is used to collect and display the electrical signal of the sensor; the computer is used to input, collect, convert, and judge the function and performance of the temperature sensor. The invention also discloses an identification method of the identification device.

The invention relates to a temperature measuring device and especially relates to a body temperature measuring radio frequency tag applied to a body surface of a human body. The radio frequency tag comprises a temperature measuring chip, a transceiver antenna and an external packaging material, wherein an RFID (Radio Frequency Identification Device) chip which is provided with a temperature sensing module and is capable of acquiring temperature information in real time is adopted by the temperature measuring chip; the temperature measuring chip is connected with the transceiver antenna; the temperature measuring chip and the transceiver antenna are arranged on the external packaging material; a flexible substrate is adopted by the external packaging material. Compared with present body temperature measuring means, such as a traditional mercury thermometer, a conventional electronic clinical thermometer, an ear thermometer and an infrared thermometer, the body temperature measuring radio frequency tag according to the technical scheme provided by the invention is a brand new body temperature measuring method. The body temperature measuring radio frequency tag has the advantages of simple structure, light and thin appearance, low cost, convenience and comfort in body temperature measuring and the like. Meanwhile, the body temperature measuring radio frequency tag is an electronic device without a battery and has ultrahigh innovation and practicability.

The invention relates to a mobile integrated gas cooker comprehensive performance experiment tester. The tester comprises a raw material gas supply device, a branch pipeline gas flow metering device, a pipeline valve, a mixed gas female pipe, a pressure display instrument, an electric switch valve, a gas filter, a safety relief valve, a gas flow meter, a remote control gas pressure regulator and a front combustor valve, wherein an outlet of the front combustor valve is connected with a test gas tool, the test gas tool is equipped with a test pan, a pan cover of the test pan is equipped with a water temperature measurement thermocouple or a mercury thermometer and a stirrer, and temperature signals of the water temperature measurement thermocouple are transmitted to a host computer through a data / signal transmission wire. The tester is a full-flow efficacy and combustion characteristic detection system from various gas distribution test gas source ends to a test gas cooker tail end, and realizes discrete test and examination on air tightness, thermal load, combustion condition, thermal efficiency, flue gas discharge index and temperature rising of the gas cooker so as to realize assessment and quantification of thermo-technical and safety performance of the gas cooker.

The invention discloses a mercury thermometer detection device. The mercury thermometer detection device comprises a box body, a top cover, a heating mechanism, a thermal insulation layer and a control mechanism; a lifting component is arranged on the top cover, and the lifting component is used for placing the mercury thermometer and driving the mercury thermometer to move up and down; the lifting component includes a lifting platform; a plurality of dismountable connection sleeves are arranged on the lifting platform; a vertical placing hole is arranged on each connection sleeve, and the shape of the placing hole is adapted to the cross-sectional shape of the mercury thermometer; the top cover is provided with through holes correspondingly; and a temperature sensor is arranged in the middle of the lower surface of the lifting platform. The mercury thermometer detection device can realize the function of fixing the thermometer well when detecting the mercury thermometer, so that the mercury end does not touch the bottom of the container; and the mercury thermometer detection device has the functions of heating, constant temperature and timed reminder, therefore, the influence of human factors, environmental temperature, detection time and other factors on the thermometer during the detection process is avoided; and thus, the manpower and physical strength are saved, and the detection effect is ensured.

The invention discloses a wear type mercury thermometer for children. The wear type mercury thermometer comprises an arm sleeve, a base plate and a mercury thermometer body, wherein the base plate isfixed on the outer wall of the arm sleeve; a hollow cavity is formed in the base plate; a threaded hole and a thermometer hole are respectively formed in the side walls of both ends of the hollow cavity; a moving block is arranged in the hollow cavity; a mounting slot is formed in one side, close to the thermometer hole, of the moving block; an insertion block is movably arranged in the mounting slot; an insertion hole is formed in one side, close to the thermometer hole, of the insertion block; the mercury thermometer body is movably inserted into the insertion hole; one side, close to the threaded hole, of the moving block is movably connected with a push block. The wear type mercury thermometer for children is fixed in a use process, so that the phenomenon that a thermometer falls off due to a fact that a child runs about during measurement of the body temperature is avoided; furthermore, the mercury thermometer can direct retract into the hollow cavity when the mercury thermometeris not used to avoid such a phenomenon that a thermometer cannot be found due to messy collection; the wear type mercury thermometer is more convenient and highly worthy of being popularized.

The invention disclose an automatic mercury thermometer calibration method based on machine vision. The method comprises the following steps for a selected calibration temperature: 1) a thermometer to be calibrated is put into a thermostatic bath until the mercury column of the thermometer has no change, and the temperature of the thermostatic bath is set to the selected calibration temperature; 2) a CMOS line-scan digital camera is used for obtaining a thermometer image which comprises the scale marks and numbers on the thermometer and the height of the mercury column; 3) the obtained image is processed and the reading of the thermometer is identified, the error range is set from -0.05 to +0.05, and the products of which the errors exceed the range are unsatisfied. The automatic mercury thermometer calibration method based on the machine vision is capable of completing automatic calibration quickly and accurately, and is capable of taking the place of labor and saving a large amount of labor; as a result, the production cost is reduced, and meanwhile, the production efficiency and the production quality are improved, and the product competitiveness is improved.

The invention discloses an electric thermometer, which comprises a temperature sensing head, a case and a control circuit, wherein the case comprises a casing and a back cover; the front end of the casing is connected with the temperature sensing head; the back end of the casing is connected with the back cover; the back part of the casing is provided with a holding end and a switch press key; the control circuit is arranged in the case and comprises a master single chip microcomputer and a slave single chip microcomputer; the master single chip microcomputer is connected with a temperature setting, warning and display circuit; the master single chip microcomputer is also connected with a temperature control module; and the slave single chip microcomputer is connected with the master single chip microcomputer through a serial communication module and is connected with a voice playing circuit. The electric thermometer has the advantages that the problems that the existing mercury thermometer has mercury pollution, is inconvenient to carry and is easy to break, the measuring time is too long, and the like are solved; the structure is simple; the portability is realized; the cost is low; and the real-time measurement display and the voice broadcasting and sound warning functions can be realized.

The invention discloses a non-contact medical temperature measuring device and application thereof. The non-contact medical temperature measuring device comprises a single-chip microcomputer control circuit, and a temperature measurement circuit, a display circuit, a power supply circuit and a keyboard circuit which are respectively connected with the single-chip microcomputer control circuit. A parallel matrix keyboard is adopted in the keyboard circuit and is connected with the port P1 of a single-chip microcomputer in the single-chip microcomputer control circuit to realize bed number input, temperature measurement control and data payback display. The temperature measuring device is applied to measuring body temperature of patients in wards. Non-contact infrared temperature measuring sensors are used for replacing the traditional mercury thermometers to realize the non-contact measurement of the body temperature. The invention provides non-contact medical temperature monitoring equipment for monitoring the body temperature of clinical patients, wherein the non-contact medical temperature monitoring equipment has the advantages of rapidness, high automation level, good data payback function and high measurement efficiency.

The invention discloses a liquid metal with low surface adhesion. The liquid metal is composed of an outermost water film, an intermediate oxide layer and an inner liquid alloy, wherein the thickness of the outermost water film is 1-12 μm. The present invention prepares a liquid metal with low surface adhesion on glass by attaching a layer of water film of a certain thickness to the surface of the liquid metal and selecting a suitable liquid metal formula, and also provides a method for applying the liquid metal Process for making thermometers from metals. The thermometer made of the liquid metal not only has excellent fluidity and can effectively indicate temperature, but also is environmentally friendly, non-toxic and harmless, and has low cost, and can effectively replace mercury thermometers.

The invention relates to a medical mask, in particular to a disposable medical mask with a body temperature indicator strip. The disposable medical mask comprises a mask body and elastic ear hanging ropes, and the body temperature indicator strip is arranged on the mask body. The measurement function of a thermometer and the protective function of the medical mask are combined, and therefore the disposable medical mask has dual-purpose functions. By applying the disposable medical mask, the speed of seeing a doctor is greatly increased, waiting time of patients in a waiting room is shortened, the probability of mutual infection among the patients is reduced, and damage and pollution caused by utilization of a mercury thermometer are avoided.

The invention discloses a method for medically and wirelessly monitoring the body temperature. The method is based on a ZigBee technology, the body temperature of a patient is monitored in real time through a wireless communication way, a patient body temperature monitoring system based on the ZigBee technology is a software and hardware joint design which relates to an embedded system and is a design based on a wireless sensor network technology, and the monitored body temperature of the patient is transmitted to a medical monitoring room through the wireless communication technology. According to the method and the device for medically and wirelessly monitoring the body temperature, disclosed by the invention, a product which is designed by the method is small in mass, the carrying is convenient, compared with a traditional mercury thermometer, multiple advantages are provided, and the product is not easily broken; the inner part of the product is not filled with mercury, and a medical accident caused by mercury leakage can be avoided; the accuracy is high; temperature value can be conveniently and quickly read, and accurate positioning on the body temperature of the patient and a whole system can be realized at any time by medical personnel, and the practicability is realized critically based on the selection of a wireless network topological structure, a chip which is used for realizing communication and the selection of a sensor chip in the system.

The invention relates to the technical field of medical care, in particular to a device for preventing an underarm thermometer from slipping and breaking. One end of a fixed ring is fixedly connected to one end of a movable plate; The alveolar formed between the teeth; the outer wall of the fixed ring is provided with a limit fixed plate; the fixed end of the thermometer is hinged to the end of the support rod through a hinge shaft. When using the present invention, when it is necessary to measure the body temperature of the human body, the thermometer is inserted into the armpit of the human body; the movable plate is first inserted between the fixed ring and the external plate and then passed through the ring guide hole; by pulling the movable plate, the locking wristband Locked on the arm; the fixed teeth are stuck in the tooth socket for fixation. With this device, the thermometer for measuring the body temperature of the armpit can be fixed at the same position, which greatly reduces the brokenness of the liquid mercury thermometer due to slipping Case. The invention has the advantages of simple structure, reasonable setting, low production cost and the like.

The invention discloses a preheatable mercury thermometer, which is characterized by the following: setting a case pipe in front end of mercury thermometer; placing a heating element and temperature sensor in the case pipe; connecting the heating element and temperature sensor with temperature control circuit through wire; connecting temperature control circuit with a power; setting temperature control circuit and power on the rear of mercury thermometer. The temperature control circuit begins to work after the power is on. The heating element heats the mercury of front end of mercury thermometer. The temperature sensor detects the temperature of front end of mercury thermometer. When the front end temperature of mercury thermometer reaches 35 deg.c, it is placed in the detecting part of human body. The temperature control circuit stops to heat. The mercury thermometer can detect the body temperature rapidly.

The invention relates to an environment control method for a crocodile hatching room, which belongs to the technical field of crocodile culture. The control process comprises the following steps that an explosion-proof light, a mercury thermometer, a physical hygrometer and an electronic temperature and humidity sensing probe are installed in a hatching room, an automatic warm water moisturizing system is installed outside, and a constant temperature and a relative humidity are set; after hatching eggs are put on shelves for three days, the hatching condition is observed, unfertilized hatching eggs are detected in time, residual hatching eggs are rearranged, the direction with upward lineation does not change all the time, and the updated quantity on the shelves is re-registered for preservation and future reference; the hatching eggs are disinfected for the second time, and specifically, a soaking disinfection method with bromogeramine is used. According to the control method, scientific control of hatching environment temperature and humidity is combined with secondary disinfection of the hatching eggs, so that the crocodile hatching eggs are hatched in a better environment, and the hatching rate of the hatching eggs is effectively increased. The control method has the advantages of simple hatching steps, high benefits and easiness in realization.

The invention relates to an intelligent mercurial thermometer capable of being monitored in real time. The intelligent mercurial thermometer comprises a strip-shaped mercurial thermometer body. A capillary tube is arranged in the mercurial thermometer body and communicated with a glass bulb located at the lower end of the mercurial thermometer body, two longitudinal guide lines parallel with the capillary tube are arranged in the mercurial thermometer body and respectively provided with a plurality of longitudinally-arranged transverse guide lines, spacing distances of the transverse guide lines on the longitudinal guide lines are the same, the transverse guide lines on the longitudinal guide lines correspond to one another and are separated by the capillary tube, one end, located on the capillary tube, of each transverse guide line is exposed out of the inner wall of the capillary tube, one end of each longitudinal guide line stretches out of the mercurial thermometer body, the stretching end of one longitudinal guide line is electrically connected with one output end of a direct-current power supply, and the stretching end of the other longitudinal guide line is electrically connected with the other output end of the direct-current power supply through a current information processor. According to the intelligent mercurial thermometer, the real-time temperature can be visually displayed as numbers.

The invention discloses a mercury thermometer standardization groove, which comprises a test tube frame with a hemisphere-shaped appearance. The hemispherical surface of the test tube frame is provided with multiple slots; the slots are internally provided with radial tube holes; the top part of the slots is provided with a standard hole; temperature measuring ends of the tube holes are concentrated in a local small spherical area; and the bottom part of the tube holes is provided with a base. By adopting the hemisphere-shaped design, to-be-standardized thermometers are inserted in the inner radial tube holes, the bottom parts of the tube holes are concentrated towards the center position of the hemisphere, the temperature measuring ends of all thermometers are ensured to be concentrated in a small area, the problem of different temperature at a different position of a water bath box is avoided, the temperature measurement is more accurate, and errors can be eliminated easily.

The disclosed mercury thermometer comprises a sealed glass tube with back end set an electronic timer that composes by a timer circuit, a LCD linked to former circuit by a cable, a startup button, an adjusting button, a cell and a buzzer. Wherein, it can set multiple time intervals by the adjusting button, and turns on the LED for brightness. This invention can improve measurement precision efficiently.

An integrated dust collection and disinfection device for vehicle interior decoration comprises a measuring device, a body, an adsorption net, an ignition head, a fan, an exhaust pipe, a button, an air suction pipe, an ignition device, an ashtray, a plug, a mercury thermometer, a generating hole, an ultraviolet sterilizer, a pointer hygrometer and a power line device. According to the integrated dust collection and disinfection device for vehicle interior decoration, dust is adsorbed on the adsorption net to be collected, a cigarette end is fired through the ignition device, and cigarette ashis collected through the ashtray. As for temperature and humidity measuring, compared with an existing disinfection and dust collection device with a simple function, the device has the advantages ofstrong functionality, high integration degree and the like, the problems that the existing dust collection and disinfection device can only carry out dust collection and simple disinfection in a vehicle and has a single function are overcome, and the device has large market potential and is popularized in the market.

The invention discloses a mercury thermometer for armpit use. The mercury thermometer for the armpit use is composed of a mercury bubble and an index bar which is connected with the mercury bubble, wherein a temperature scale is arranged on the surface of the index bar, a thin pipeline which is communicated with the mercury bubble is arranged in the index bar, a necking is formed at the position, close to the mercury bubble, of the thin pipeline, and the index bar is bent into a ring with a notch formed between the mercury bubble and the free end of the index bar, and diameter of the ring is 3-15cm, and the width of the notch is three fourths of the diameter of the ring. According to the mercury thermometer for the armpit use, due to the fact that the mercury thermometer is provided with the ring structure which can be clamped on the arm of a human body, the trouble that the mercury thermometer needs to be held with a hand when the mercury thermometer is used for measuring axillary temperature is avoided, and therefore the mercury thermometer is more convenient to use.

The invention relates to the technical field of one-bath dyeing and discloses a one-bath dyeing device for viscose / cotton knitted fabric. The one-bath dyeing device comprises an external dyeing barrel, the bottom center of the external dyeing barrel is fixedly connected with the shaft end face of the output shaft of a motor, an internal dyeing barrel is mounted in the cavity center of the externaldyeing barrel, a first expansion pipe and a second expansion pipe are respectively mounted on the right wall and the left wall of the axial bottom of the external dyeing barrel, a first mercury thermometer and a second mercury thermometer are respectively mounted in the first expansion pipe and the second expansion pipe, and a cylindrical cavity and an annular cavity between the outside of the internal dyeing barrel and the inside of the external dyeing barrel are respectively provided with a first heating resistor and a second heating resistor. The invention further discloses a one-bath dyeing process for the viscose / cotton knitted fabric. The problem that a one-bath dyeing solution cannot be heated and maintained at constant temperature efficiently simultaneously when the viscose / cottonknitted fabric is dyed by the one-bath method is solved.

The invention discloses a breakage-proof mercury thermometer, comprising a thermometer body and a housing, wherein the left end of the thermometer body is a metallic temperature sensing end, the right end is a temperature reflecting end, a mercury is arranged inside the temperature reflecting end, the housing is arranged outside the temperature reflecting end, a shock absorption layer is arranged in the housing, two groups of scales are symmetrically arranged on left and right of the top of the housing, a groove is formed in the middle of the housing, and a transparent lug having an arch-shaped section is arranged in the groove. According to the breakage-proof mercury thermometer, the housing is arranged outside the temperature reflecting end of the thermometer body, the housing surface and the housing body form a non-detachable structure, and a buffer layer is arranged on the inner side of the bottom of the housing, so that the thermometer body can be well protected, breakage and mercury leakage caused by collision or fall are avoided, or volatilization of mercury can be delayed when the thermometer body is broken, and the thermometer is convenient to use and safer on the whole.

The invention proposes an electronic thermometer, comprising: a mercury thermometer and a housing; the bottom of the mercury thermometer is a metal probe and a mercury ball, the middle part is a cylindrical clamping area, and the upper part is a cube-shaped data readout area. There is a light guide groove in the center of the four sides of the area. The light guide grooves are opposite to each other and in a straight line. The width of the light guide groove is smaller than the diameter of the mercury column; A bar-shaped light source is set, and an optical fiber array is set at the position opposite to the bar-shaped light source on the other side of the side wall of the housing; each phase in the optical fiber array has one end stuck in the light guide groove, and the other end connected to the The control terminal of the phototransistor, the collector of the phototransistor is connected to the power supply terminal, the emitter is connected to the ground potential through a resistor, the common end of the emitter of the phototransistor and the resistor is connected to the input terminal of the decoding circuit, and the decoding circuit The output terminal is connected to the digital display circuit.

The invention discloses an ultrahigh precision digital thermometric indicator replacing a precise mercury thermometer, comprising a supporting body, a printed circuit board, a temperature detection device and a display. The temperature detection device selects a double-bead cascade connection compensation structure or a double-bead complementary parallel-serial compensation structure, wherein the double-bead cascade connection compensation structure employs a second thermistor to be in cascade connection with a third thermistor to form a complementary temperature detector; the double-bead complementary parallel-serial compensation structure employs a fourth thermistor to be in cascade connection with a fifth thermistor to form a first cascade connection compensation structure; then the first cascade connection compensation structure is in parallel connection with a third compensating resistor to form a second parallel structure, and the second parallel structure is then in cascade connection with a fourth compensating resistor to form the temperature detection device. The thermometric indicator has the advantages of high precision and great stability.