CN109253817B - Low-temperature contact type surface temperature sensor - Google Patents
Low-temperature contact type surface temperature sensor Download PDFInfo
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- CN109253817B CN109253817B CN201811209421.XA CN201811209421A CN109253817B CN 109253817 B CN109253817 B CN 109253817B CN 201811209421 A CN201811209421 A CN 201811209421A CN 109253817 B CN109253817 B CN 109253817B
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- 238000009529 body temperature measurement Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 230000002528 anti-freeze Effects 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims abstract 2
- 230000001681 protective effect Effects 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- 239000000741 silica gel Substances 0.000 claims description 8
- 229910002027 silica gel Inorganic materials 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 1
- 238000012946 outsourcing Methods 0.000 claims 1
- 238000004321 preservation Methods 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
- G01K1/143—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations for measuring surface temperatures
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention relates to a low-temperature contact type surface temperature sensor which comprises a shell, an upper cover, a temperature sensor, a magnet ring and a temperature equalizing medium, wherein an annular clamping groove is formed in the lower end of the shell, the magnet ring is arranged in the annular clamping groove, the temperature equalizing groove is formed in the shell, the upper end of the shell is provided with the upper cover, the upper cover seals the temperature equalizing groove in the shell, the temperature sensor is arranged on the upper cover in a penetrating manner, the lower part of the temperature sensor is inserted into the temperature equalizing groove, the temperature equalizing medium is contained in the temperature equalizing groove, the temperature equalizing medium is antifreeze, a liquid injection hole is formed in the upper cover, the liquid injection hole corresponds to the temperature equalizing groove in the shell, and a plug is arranged in the liquid injection hole. The invention adopts a magnet adsorption mode to be adsorbed on the surface of the measured object, so that the measured object is not damaged, the normal and safe use of the measured object is ensured, meanwhile, the liquid temperature equalizing medium is arranged in the shell of the surface temperature sensor, and the temperature sensor is immersed in the temperature equalizing medium, thereby eliminating the influence of the temperature and the humidity of the external environment on the temperature sensor and ensuring the accuracy of temperature measurement.
Description
Technical field:
the invention belongs to the technical field of instruments and meters for temperature detection, calibration and measurement, and particularly relates to a low-temperature contact type surface temperature sensor.
The background technology is as follows:
The surface temperature measurement is applied to the temperature control field of various industries at present, such as monitoring of the temperature of the outer surface of a blast furnace and a heating power pipeline of a power plant, measuring of the temperature of a rail before and after a train runs in railway track traffic, measuring of the temperature of the surface of a steel plate in the steel manufacturing industry, monitoring of the temperature of the outer surface of a kiln in energy-saving monitoring, monitoring of the temperature of the surface of an aircraft in aerospace scientific research, requirements of an asphalt rolling forming machine used in building detection on temperature, verification of the heat conductivity of glass by a hollow glass dew point meter, and measurement of the surface temperature by a heating plate encountered in daily life.
At present, the measurement modes of the surface temperature of an object are divided into two types, namely contact type and non-contact type.
The non-contact temperature measurement, as the name implies, does not need to be in contact with the surface of the measured object when measuring the temperature of the surface of the object, has the advantages of no need to be in contact and quick response, but has large measurement error on materials with large surface reflection and refraction index, such as metal, and the like, and the emissivity must be set, so that the temperature cannot be accurately measured.
The contact temperature measurement is a temperature measurement method that the sensor is placed in the same thermal equilibrium state as the object, so that the sensor and the object keep the same temperature. Such as mercury thermometers, pressure thermometers, and bimetal thermometers, which are manufactured by using the principle of thermal expansion of a medium, and detecting temperatures, such as thermal resistors, thermistors, electronic temperature sensors, thermocouples, and the like, by using the characteristic that an electrical parameter of an object varies with temperature. The method has the advantages of small relative measurement error, high accuracy and the like, but the contact surface of the temperature sensor and the measured object is easily affected by the environmental temperature and humidity, the probe is easily oxidized and corroded, and the measurement range is limited.
In order to ensure the accuracy of the surface temperature measurement of an object, at present, most of the surface temperature measurement of the object still adopts contact type temperature measurement, a temperature sensor is in contact with the surface of the object to be measured, and at present, a traditional low-temperature contact type surface temperature sensor and the surface mounting mode of the object to be measured comprise: the thermocouple and the thermal resistor are fixed on the surfaces of the tested equipment and the pipeline by means of welding, hoop binding, screw fixing and the like. These mounting means have each the following drawbacks: 1. welding and fixing type: it is difficult to destroy the surface to be measured, reduce the strength of the device to be measured, and replace or repair the temperature sensor. 2. Binding hoops: the device has the limitation that the device can be only used on small pipelines, and the accuracy is easily influenced by the outside because the device can be loosened and shed after long-term measurement. 3. And (3) screw fixation: the surface of the measured object is damaged, the overall performance of the measured object is reduced, and the limitation is very large.
The invention comprises the following steps:
In summary, in order to overcome the defects of the prior art, the invention provides a low-temperature contact type surface temperature sensor, which is adsorbed on the surface of a measured object in a magnet adsorption mode, so that the measured object is not damaged, the normal and safe use of the measured object is ensured, meanwhile, a liquid temperature-equalizing medium is arranged in a shell of the surface temperature sensor, and the temperature sensor is immersed in the temperature-equalizing medium, thereby eliminating the influence of the temperature and the humidity of the external environment on the temperature sensor and ensuring the accuracy of temperature measurement.
In order to solve the technical problems, the technical scheme of the invention is realized as follows:
A low temperature contact surface temperature sensor, wherein: including casing, upper cover, temperature sensor, magnet ring and samming medium, the casing lower extreme be provided with annular draw-in groove, the annular draw-in groove is equipped with the magnet ring in, the casing in be provided with samming groove, the casing upper end is provided with the upper cover, the samming groove in the upper cover sealed casing, the upper cover on wear to be equipped with temperature sensor, temperature sensor lower part inserts samming inslot, samming inslot splendid attire have samming medium, samming medium be antifreeze, the upper cover on be provided with annotate the liquid hole, annotate the liquid hole and correspond with the samming groove on the casing, annotate the liquid downthehole be provided with the jam.
The technical scheme of the invention can also be realized as follows: the shell is a cylindrical pure aluminum shell.
The technical scheme of the invention can also be realized as follows: the distance between the Wen Caode faces and the lower end face of the shell is 0.2-1 mm.
The technical scheme of the invention can also be realized as follows: the shell and the upper cover are sleeved with a heat-insulating sleeve after being installed, and the heat-insulating sleeve is a silica gel sleeve or a rubber sleeve.
The technical scheme of the invention can also be realized as follows: the annular clamping groove at the lower end of the shell is arranged at a position close to the edge of the shell, the depth of the annular clamping groove is the same as the height of the magnet ring, and the diameter of the inner ring of the annular clamping groove is larger than that of the temperature equalizing groove.
The technical scheme of the invention can also be realized as follows: the upper cover is connected with the upper end of the shell through a fastening screw in a fastening way, and a sealing ring is arranged between the upper cover and the upper end face of the shell.
The technical scheme of the invention can also be realized as follows: the temperature sensor is an armored temperature sensor and comprises a junction box, a screw rod, a protective sleeve, a resistor lead, a compensation lead and a temperature measuring resistor element, wherein the junction box is arranged at the upper end of the screw rod, the protective sleeve is arranged at the lower end of the screw rod, the resistor lead and the temperature measuring resistor element are arranged in the protective sleeve, the resistor lead penetrates through the screw rod to be connected with the compensation lead in the junction box, an insulating layer is wrapped outside the resistor lead, heat-conducting silica gel is filled in the protective sleeve, and the temperature measuring resistor element is an AA-level PT100 platinum thermal resistor.
The technical scheme of the invention can also be realized as follows: the compensating lead comprises a lead, an insulating layer wrapping the lead and a shielding layer arranged in the insulating layer, wherein the insulating layer is a polytetrafluoroethylene insulating layer, and the shielding layer is a stainless steel net.
The beneficial effects of the invention are as follows:
1. the invention adopts a magnet adsorption mode to be adsorbed on the surface of a measured object, so that the measured object is not damaged, the normal and safe use of the measured object is ensured, meanwhile, the temperature sensor is internally provided with a liquid temperature-equalizing medium, and the temperature measuring probe is immersed in the temperature-equalizing medium, and the temperature-equalizing medium is an antifreezing solution, so that the invention is suitable for the detection of the temperature range of minus 60 ℃ to 90 ℃, thereby eliminating the influence of the external environment temperature and humidity on the temperature measuring probe and ensuring the accuracy of temperature measurement.
2. The invention adopts pure aluminum material, and the distance between the bottom surface of the temperature equalizing tank and the bottom surface of the shell is only 0.2-1 mm, thereby being beneficial to the rapid transfer of the temperature of the measured object to the temperature equalizing medium in the temperature equalizing tank, the temperature sensor is immersed in the liquid temperature equalizing medium, the temperature sensor detects the temperature of the temperature equalizing medium, the stability of temperature measurement can be effectively improved, the temperature sensing rate of the temperature sensor is improved, the temperature measuring efficiency is improved, the shell and the upper cover are wrapped with the heat-insulating sleeve, the heat-insulating sleeve is a silica gel sleeve or a rubber sleeve, the silica gel sleeve and the rubber sleeve have good heat-insulating performance, meanwhile, the waterproof performance is good, the influence of the temperature and the humidity of the external environment on temperature measurement can be effectively reduced, and the accuracy of temperature measurement is guaranteed.
3. The temperature sensor provided by the invention is simple to operate and convenient to connect, the temperature measuring resistance element is an AA-level PT100 platinum thermal resistance, the accuracy is high, the compensation wire transmits a temperature conversion signal in a voltage or current signal, and the compensation wire is provided with the shielding layer of the stainless steel net, so that the influence of the external environment on signal transmission can be effectively reduced, and the accuracy of a temperature detection result is ensured.
4. The annular clamping groove for embedding the magnet ring on the shell is arranged at the edge part of the lower end of the shell, and the diameter of the inner ring of the annular clamping groove is larger than that of the temperature equalizing groove, so that the temperature equalizing groove and a measured object can be ensured to have enough contact area, the surface temperature of the measured object is ensured to be rapidly transferred to a temperature equalizing medium in the temperature equalizing groove, the dissipation consumption in the temperature transfer process is reduced, and the temperature measurement accuracy is ensured.
5. The invention has simple structure, convenient use and operation and low cost, introduces the temperature equalization tank and the temperature equalization medium, can effectively improve the efficiency and the accuracy of surface temperature measurement, simultaneously eliminates the influence of the temperature and the humidity of the external environment on the temperature measurement result as much as possible, and ensures the temperature measurement precision.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
Fig. 2 is a schematic structural diagram of the temperature sensor of the present invention.
The specific embodiment is as follows:
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a low-temperature contact surface temperature sensor, wherein: including casing 1, upper cover 2, temperature sensor 3, magnet ring 4 and samming medium 5, casing 1 be cylindrical pure aluminum casing, casing 1 lower extreme be provided with annular draw-in groove, the annular draw-in groove setting of casing 1 lower extreme is being close to casing 1 edge position, annular draw-in groove is equipped with magnet ring 4, annular draw-in groove's degree of depth be the same with the height of magnet ring 4, casing 1 in be provided with samming groove 6, the distance between samming groove 6 bottom surface and the casing 1 lower extreme face is 0.2~1mm, casing 1 upper end is provided with upper cover 2, samming groove 6 in upper cover 2 seal casing 1, upper cover 2 and casing 1 upper end pass through fastening screw fastening connection, be provided with sealing washer 10 between upper cover 2 and the casing 1 up end. The diameter of the inner ring of the annular clamping groove is larger than that of the temperature equalizing groove 6, the shell 1 and the upper cover 2 are sleeved with a heat-insulating sleeve 9 after being installed, and the heat-insulating sleeve 9 is a silica gel sleeve. The upper cover 2 on wear to be equipped with temperature sensor 3, temperature sensor 3 lower part inserts in the samming groove 6, samming groove 6 in splendid attire have samming medium 5, samming medium 5 be antifreeze, upper cover 2 on be provided with annotate liquid hole 7, annotate liquid hole 7 and the samming groove 6 on the casing 1 correspond, annotate liquid hole 7 in be provided with jam 8. The temperature sensor 3 is an armored temperature sensor 3 and comprises a junction box 31, a screw rod 32, a protective sleeve 33, a resistor lead 34, a compensation wire 35 and a temperature measuring resistor element 36, wherein the junction box 31 is arranged at the upper end of the screw rod 32, the protective sleeve 33 is arranged at the lower end of the screw rod 32, the resistor lead 34 and the temperature measuring resistor element 36 are arranged in the protective sleeve 33, the resistor lead 34 penetrates through the screw rod 32 and is connected with the compensation wire 35 in the junction box 31, an insulating layer is wrapped outside the resistor lead 34, heat conducting silica gel is filled in the protective sleeve 33, and the temperature measuring resistor element 36 is AA-level PT100 platinum thermal resistor. The compensating wire 35 comprises a wire, an insulating layer wrapping the wire and a shielding layer arranged in the insulating layer, wherein the insulating layer is a polytetrafluoroethylene insulating layer, and the shielding layer is a stainless steel net.
The invention is suitable for low temperature measurement, and the temperature measurement range is-60 ℃ to 90 ℃. When the temperature sensor is used, after the armored temperature sensor 3 is in threaded fastening connection with the upper cover 2, the plug 8 in the liquid injection hole 7 is taken out, anti-freezing liquid is injected into the liquid injection hole 7 to serve as the temperature equalizing medium 5, after the liquid injection hole 7 is filled, the plug 8 is used for plugging the liquid injection hole 7 again, then the temperature sensor is adsorbed on the surface of an object to be measured through the magnet ring 4, the compensation lead 35 of the armored temperature sensor 3 is connected with a temperature secondary instrument, the surface temperature of the object to be measured is transferred into the temperature equalizing medium 5 in the temperature equalizing groove 6 through the pure aluminum shell 1, the temperature of the temperature equalizing medium 5 is raised, the temperature sensor 3 detects the temperature of the temperature equalizing medium 5, and a temperature conversion signal is transferred to the temperature secondary instrument through a voltage or current signal and the temperature value is read.
It should be noted that the above-mentioned embodiments illustrate rather than limit the technical solution of the present invention, and that those skilled in the art may substitute equivalents or make other modifications according to the prior art without departing from the spirit and scope of the technical solution of the present invention, and are included in the scope of the claims.
Claims (7)
1. A low temperature contact surface temperature sensor, characterized by: comprises a shell (1), an upper cover (2), a temperature sensor (3), a magnet ring (4) and a temperature equalizing medium (5), wherein the lower end of the shell (1) is provided with an annular clamping groove, the magnet ring (4) is arranged in the annular clamping groove, the temperature equalizing groove (6) is arranged in the shell (1), the upper end of the shell (1) is provided with the upper cover (2), the upper cover (2) seals the temperature equalizing groove (6) in the shell (1), the temperature sensor (3) is arranged on the upper cover (2) in a penetrating way, the lower part of the temperature sensor (3) is inserted into the temperature equalizing groove (6), the temperature equalizing medium (5) is contained in the temperature equalizing groove (6), the temperature equalizing medium (5) is antifreeze, the upper cover (2) is provided with a liquid injection hole (7), the liquid injection hole (7) corresponds to the temperature equalizing groove (6) in the shell (1), the liquid injection hole (7) is internally provided with a plug (8),
The distance between the bottom surface of the temperature equalization groove (6) and the lower end surface of the shell (1) is 0.2-1 mm,
After the shell (1) and the upper cover (2) are installed, a heat-insulating sleeve (9) is sleeved outside the shell.
2. The low temperature contact surface temperature sensor of claim 1, wherein: the shell (1) is a cylindrical pure aluminum shell.
3. The low temperature contact surface temperature sensor of claim 1, wherein: the heat preservation and heat insulation sleeve (9) is a silica gel sleeve or a rubber sleeve.
4. The low temperature contact surface temperature sensor of claim 1, wherein: the annular clamping groove at the lower end of the shell (1) is arranged at the edge part close to the shell (1), the depth of the annular clamping groove is the same as the height of the magnet ring (4), and the diameter of the inner ring of the annular clamping groove is larger than that of the temperature equalizing groove (6).
5. The low temperature contact surface temperature sensor of claim 1, wherein: the upper cover (2) is connected with the upper end of the shell (1) through a fastening screw, and a sealing ring (10) is arranged between the upper cover (2) and the upper end surface of the shell (1).
6. The low temperature contact surface temperature sensor of claim 1, wherein: the temperature sensor (3) be armor temperature sensor, including terminal box (31), screw rod (32), protective casing (33), resistance lead (34), compensation wire (35) and temperature measurement resistance element (36), terminal box (31) set up in screw rod (32) upper end, protective casing (33) set up in screw rod (32) lower extreme, be provided with resistance lead (34) and temperature measurement resistance element (36) in protective casing (33), resistance lead (34) pass screw rod (32) and be connected with compensation wire (35) in terminal box (31), resistance lead (34) outsourcing have the insulating layer, protective casing (33) intussuseption be filled with heat conduction silica gel, temperature measurement resistance element (36) be AA level PT100 platinum thermal resistance.
7. The low temperature contact surface temperature sensor of claim 6, wherein: the compensating lead (35) comprises a lead, an insulating layer wrapping the outside of the lead and a shielding layer arranged in the insulating layer, wherein the insulating layer is a polytetrafluoroethylene insulating layer, and the shielding layer is a stainless steel net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811209421.XA CN109253817B (en) | 2018-10-17 | 2018-10-17 | Low-temperature contact type surface temperature sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811209421.XA CN109253817B (en) | 2018-10-17 | 2018-10-17 | Low-temperature contact type surface temperature sensor |
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| CN109253817A CN109253817A (en) | 2019-01-22 |
| CN109253817B true CN109253817B (en) | 2024-09-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111537094B (en) * | 2020-04-22 | 2025-10-10 | 湖南华润电力鲤鱼江有限公司 | End face thermal resistor |
| CN114034409B (en) * | 2020-11-16 | 2022-10-28 | 中国科学院理化技术研究所 | Mounting unit of low-temperature sensor, low-temperature detection device and mounting method thereof |
| CN114061774B (en) * | 2020-11-16 | 2022-10-28 | 中国科学院理化技术研究所 | Assembly structure of low-temperature sensor, low-temperature detection device and assembly method thereof |
| CN114034408B (en) * | 2020-11-16 | 2023-08-15 | 中国科学院理化技术研究所 | Mounting mechanism for low-temperature sensor, low-temperature detection device and mounting method thereof |
| CN114061789B (en) * | 2020-11-16 | 2022-11-22 | 中国科学院理化技术研究所 | Mounting structure of low-temperature sensor, low-temperature detection device and mounting method thereof |
| CN114112094A (en) * | 2021-12-24 | 2022-03-01 | 湖南联诚轨道装备有限公司 | Active wireless temperature sensor |
| CN115790873A (en) * | 2022-11-30 | 2023-03-14 | 孔叶军 | Temperature measuring instrument |
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| CN208847366U (en) * | 2018-10-17 | 2019-05-10 | 河南省计量科学研究院 | Low temperature contact surface temperature sensor |
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| JP4995113B2 (en) * | 2008-02-14 | 2012-08-08 | 三菱重工業株式会社 | Thermocouple reference junction compensator |
| CN202092793U (en) * | 2011-04-20 | 2011-12-28 | 北京海慧电讯科技有限公司 | Buffering type temperature measuring device |
| CN205538015U (en) * | 2016-03-29 | 2016-08-31 | 中国长江三峡集团公司 | Prevent fatigue deformation resistance temperature detector |
| CN107014513B (en) * | 2017-04-14 | 2020-03-31 | 东南大学 | Sleeve type platinum resistor temperature sensing device |
| CN207649786U (en) * | 2018-01-02 | 2018-07-24 | 南京双环电器股份有限公司 | Rolling stock temp sensor device |
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| CN208847366U (en) * | 2018-10-17 | 2019-05-10 | 河南省计量科学研究院 | Low temperature contact surface temperature sensor |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Guang Inventor after: Liu Yabing Inventor after: Rong Sixiao Inventor after: Zhang Zhao Inventor after: Qian Yimin Inventor after: Zhang Xia Inventor after: Lu Xingjie Inventor after: Yan Di Inventor after: Sun Xiaoquan Inventor after: Wang Xiaowei Inventor after: Mu Yuan Inventor after: Cui Xinyuan Inventor after: Wang Wei Inventor after: Wang Yanzhao Inventor after: Wu Zhao Inventor after: Yuan Dan Inventor after: Yang Ling Inventor after: He Zhifeng Inventor after: Dai Xiang Inventor after: Chen Yongqiang Inventor before: Zhou Guang Inventor before: He Zhifeng Inventor before: Yang Ling Inventor before: Yuan Dan Inventor before: Wang Wei Inventor before: Mu Yuan Inventor before: Wang Yanzhao Inventor before: Wu Zhao Inventor before: Rong Sixiao Inventor before: Zhang Zhao Inventor before: Qian Yimin Inventor before: Sun Xiaoquan Inventor before: Yan Di Inventor before: Wang Xiaowei Inventor before: Chen Yongqiang Inventor before: Cui Xinyuan Inventor before: Dai Xiang Inventor before: Liu Yabing Inventor before: Zhang Xia Inventor before: Lu Xingjie |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |