CN103033280A - High-sensitivity thermal-response platinum resistor temperature sensor - Google Patents
High-sensitivity thermal-response platinum resistor temperature sensor Download PDFInfo
- Publication number
- CN103033280A CN103033280A CN2012105526175A CN201210552617A CN103033280A CN 103033280 A CN103033280 A CN 103033280A CN 2012105526175 A CN2012105526175 A CN 2012105526175A CN 201210552617 A CN201210552617 A CN 201210552617A CN 103033280 A CN103033280 A CN 103033280A
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- thermal
- cap
- platinum resistance
- heat
- temperature sensor
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 229910052697 platinum Inorganic materials 0.000 title claims abstract description 48
- 229910052751 metal Inorganic materials 0.000 claims abstract description 47
- 239000002184 metal Substances 0.000 claims abstract description 47
- 230000006698 induction Effects 0.000 claims abstract description 20
- 230000008054 signal transmission Effects 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 18
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 12
- 229910052709 silver Inorganic materials 0.000 claims description 12
- 239000004332 silver Substances 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000001939 inductive effect Effects 0.000 abstract 5
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 230000036413 temperature sense Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 210000004534 cecum Anatomy 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Thermistors And Varistors (AREA)
Abstract
The invention discloses a high-sensitivity thermal-response platinum resistor temperature sensor. A thermal conductive metal cap is fixedly embedded at the top end of a metal protecting pipe of the high-sensitivity thermal-response platinum resistor temperature sensor, a platinum resistor inductive core is arranged inside a counter bored hole of the thermal conductive metal cap, a signal transmission cable is in electric connection with the platinum resistor inductive core, transmitting signals are guided out of the metal protecting pipe, thermal-insulating layers are arranged on the internal part of the metal protecting pipe of the thermal conducting inductive cap and outside the counter bored hole of the thermal conducting cap, and the thermal conducting connecting body of the counter bored hole of the thermal conducting cap is linked up with thermal conducting metal points which are embedded in the backside of the insulating substrate of the inductive core of the platinum resistor in a thermal-conducting mode. The high-sensitivity thermal-response platinum resistor temperature sensor improves induction sensitivity of the sensor, shortens thermal response time, and enables the platinum inductive core to be capable of sensing temperature change of environment sensitively and outputting transmission signals of detection.
Description
Technical field
What patented claim of the present invention related to is platinum resistance temperature sensor, in particular has the platinum resistance temperature sensor of protection thermal conducting sleeve structure.
Background technology
Platinum resistance temperature sensor is that Current Temperatures is measured a most accurate class sensor.The typical construction of existing platinum resistance temperature sensor temperature-sensing probe as shown in Figure 1, platinum resistance induction core 5 is inserted metal protecting tube 1 cecum, embedding thermal conductive insulation glue 4 in the pipe is connected by signal transmission cable 8 and to draw the platinum resistance temperature and become the number of delivering letters.Its metal protecting tube is the protection housing of platinum resistance induction core, also is simultaneously the heat conductor of platinum resistance induction core induced environment temperature, and existing material and whole pillar structure can't be held concurrently and possess desirable protection and excellent heat conductivility.There is the technical matters that heat transfer efficiency is low, temperature sense is insensitive, thermal response time is long in existing platinum resistance temperature sensor temperature-sensing probe structure, especially work as the temperature-sensing probe diameter and surpass the 10mm specification, it is more outstanding that above-mentioned technical matters seems, the temperature sense time is obviously long, usually more than 25 seconds, require more strict application scenario for temperature sense sensitivity, existing platinum resistance temperature sensor product obviously can't satisfy user demand.
Summary of the invention
The goal of the invention of the present patent application is to provide a kind of platinum resistance temperature sensor that improves the highly sensitive thermal response of temperature sense sensitivity, thermal response time weak point.The platinum resistance temperature sensor technical scheme of the highly sensitive thermal response that patented claim of the present invention provides, its main technical content is: a kind of platinum resistance temperature sensor of highly sensitive thermal response, the metal protecting tube top is setting-in one heat-conducting metal cap fixedly, platinum resistance induction core places in the heat-conducting metal cap counterbore, be electrically connected with platinum resistance induction core by signal transmission cable, draw the change number of delivering letters from metal protecting tube, part and its counterbore are provided with thermofin outward in the metal protecting tube of heat-conducting metal cap, and the thermally conductive interface of heat-conducting metal cap counterbore is connected with the heat-conducting metal point heat conduction that the platinum resistance induction core insulation matrix back side embeds.Described heat-conducting metal cap is good silvery part or copper fitting of heat conductivility.
In the above-mentioned overall technical architecture, described heat-conducting metal cap is the copper cap, and copper cap outer face is compounded with silver layer, and silver layer is extended to copper cap counterbore by embedding silver-colored connector is connected with the heat conduction silver point heat conduction that the platinum resistance induction core insulation matrix back side embeds.
The platinum resistance temperature sensor technical scheme of the disclosed highly sensitive thermal response of the present patent application has overcome that the heat transfer efficiency that the whole conductive structure of temperature-sensing probe metal protecting tube of existing routine exists is low, thermal response time long, temperature variation is responded to insensitive technical matters.The metal protecting tube top embeds the good metal material hatting part of heat conduction, the heat-conducting metal cap changes direct, the fast platinum resistance that conducts to ambient temperature and responds to core, shortened the sensitive time of platinum resistance to variation of ambient temperature, fast generation, delivery temperature induction become the number of delivering letters.The technical program had both kept the metal protecting tube protective value, had increased substantially simultaneously sensor sensing sensitivity, had shortened thermal response time, made induced environment temperature variation, the output detections that platinum resistance induction core can be sensitive become the number of delivering letters.Take the temperature-sensing probe of diameter 12mm as example, its thermal response time can shorten to and be no more than 10 seconds, has generally reached 7,8 seconds.The application of the technical program is even more ideal greater than the temperature-sensing probe of 10mm for diameter specifications, and making the thermal response time technical indicator no longer is the restraining factors of platinum resistance temperature sensor major diameter temperature-sensing probe technical development.And taken into full account the combination property of product in the structural design of the technical program, and avoided the metal protecting tube body to conduct the disturbing effect of non-check point temperature by the setting of thermofin, guaranteed the accuracy of temperature sensor temperature detection.
Description of drawings
Fig. 1 is the sectional structure chart of existing platinum resistance temperature sensor temperature-sensing probe.
Fig. 2 is an embodiment sectional structure chart of the platinum resistance temperature sensor temperature-sensing probe of this highly sensitive thermal response.
Embodiment
The platinum resistance temperature sensor of the highly sensitive thermal response of patented claim of the present invention, metal protecting tube 1 top is setting-in one heat-conducting metal cap fixedly, this heat-conducting metal cap is good silvery part or copper fitting of heat conductivility, the metal protecting tube inside of heat-conducting metal cap is arranged be used to the counterbore 20 of inserting platinum resistance induction core 5, and the connector 22 that counterbore 20 hole bottom faces extend is put 23 heat conduction with the heat-conducting metal that the insulating body back side of platinum resistance induction core 5 embeds and is connected.If heat-conducting metal cap silvery part, its heat-conducting effect is best, but cost is excessive; If copper fitting, but cost decrease, heat-conducting effect does not reach the ideal effect of silvery part, Fig. 2 example structure advantage of combining copper and money kind Heat Conduction Material designs for this reason, this heat-conducting metal cap is copper cap 2, platinum resistance induction core 5 places the counterbore 20 of copper cap 2, signal transmission cable 8 is electrically connected and draws metal protecting tube 1 with platinum resistance induction core 5, metal protecting tube 1 interior part and its counterbore of leading copper cap 2 are provided with thermofin 3 outward, thermofin 3 is pasted on metal protecting tube 1 inwall, in thermal conductive insulation glue 4 embedding metal protecting tubes 1, or in embedding thermal conductive insulation glue 4 spaces of simultaneously embedding between thermofin 3 and metal protecting tube 1 inwall.Copper cap 2 outer faces are compounded with silver layer 21, the insulating body back side of platinum resistance induction core 5 embeds the heat conduction silver point that has as heat-conducting metal point 23, and silver layer 21 is extended to copper cap counterbore 20 by embedding silvery connector 22 is connected with the heat conduction silver point heat conduction that the platinum resistance induction core 5 insulating body back sides embed.This structure one is to utilize silver layer 21 high thermal conductivity energy, the 2nd, by silver layer sealing copper cap 2 outer faces, stop the copper oxidation, and the reliability of product is provided.
In this enforcement structure, communicate with counterbore 20 in the headspace 6 of thermofin 3, described headspace 6 is to expand with heat and contract with cold for buffering to change the headspace that provides, and brings negative effect to avoid to greatest extent expanding with heat and contract with cold to this temperature-sensing probe.
Claims (4)
1. the platinum resistance temperature sensor of a highly sensitive thermal response, it is characterized in that fixedly setting-in one heat-conducting metal cap of metal protecting tube (1) top, platinum resistance induction core (5) places in the heat-conducting metal cap counterbore (20), be electrically connected with platinum resistance induction core (5), draw the change number of delivering letters from metal protecting tube by signal transmission cable (8), part and its counterbore are provided with thermofin (3) outward in the metal protecting tube of heat-conducting metal cap, and the thermally conductive interface (22) of heat-conducting metal cap counterbore is connected with heat-conducting metal point (23) heat conduction that the platinum resistance induction core insulation matrix back side embeds.
2. the platinum resistance temperature sensor of highly sensitive thermal response according to claim 1 is characterized in that described heat-conducting metal cap is silvery part or copper fitting.
3. the platinum resistance temperature sensor of highly sensitive thermal response according to claim 1, it is characterized in that described heat-conducting metal cap is copper cap (2), copper cap (2) outer face is compounded with silver layer (21), and silver layer (21) is extended to copper cap counterbore by embedding silvery connector (22) is connected with the heat conduction silver point heat conduction that the platinum resistance induction core insulation matrix back side embeds.
4. according to claim 1 or the platinum resistance temperature sensor of 3 described highly sensitive thermal responses, it is characterized in that communicating with counterbore (20) in the headspace (6) of thermofin (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210552617.5A CN103033280B (en) | 2012-12-18 | 2012-12-18 | High-sensitivity thermal-response platinum resistor temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210552617.5A CN103033280B (en) | 2012-12-18 | 2012-12-18 | High-sensitivity thermal-response platinum resistor temperature sensor |
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| Publication Number | Publication Date |
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| CN103033280A true CN103033280A (en) | 2013-04-10 |
| CN103033280B CN103033280B (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210552617.5A Active CN103033280B (en) | 2012-12-18 | 2012-12-18 | High-sensitivity thermal-response platinum resistor temperature sensor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557889A (en) * | 2013-11-14 | 2014-02-05 | 无锡信大气象传感网科技有限公司 | Device for improving response speed of temperature and humidity sensor |
| CN104330163A (en) * | 2014-11-07 | 2015-02-04 | 中国兵器工业集团第二一四研究所苏州研发中心 | Novel steel rail thermometer |
| CN106932111A (en) * | 2017-04-28 | 2017-07-07 | 上海岗崎控制仪表有限公司 | A kind of quick conduction heat sensor structures and methods |
| CN107014513A (en) * | 2017-04-14 | 2017-08-04 | 东南大学 | A kind of bushing type platinum resistance temperature sensing device |
| CN108151778A (en) * | 2018-01-11 | 2018-06-12 | 上海智密技术工程研究所有限公司 | A kind of explosion-proof sensor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1083750A (en) * | 1965-10-01 | 1967-09-20 | Rosemount Eng Co Ltd | Improvements in or relating to temperature sensors |
| CN2108912U (en) * | 1991-10-12 | 1992-07-01 | 高云金 | Platinum thermo-resistance |
| JPH04259833A (en) * | 1991-02-14 | 1992-09-16 | Okazaki Seisakusho:Kk | High speed response type temperature sensor |
| JP3027938B2 (en) * | 1996-04-19 | 2000-04-04 | 松下電器産業株式会社 | Temperature detector |
| CN201622136U (en) * | 2010-01-30 | 2010-11-03 | 杨晶 | High-performance platinum thermal resistance temperature sensor |
| CN102062643A (en) * | 2009-11-16 | 2011-05-18 | 上海岗崎控制仪表有限公司 | Wear-resistant quick temperature measuring platinum resistance thermometer |
| CN101487804B (en) * | 2008-12-26 | 2012-01-11 | 中国人民解放军第五七一九工厂 | Lubricating grease dropping point temperature measuring sensor |
| CN202974489U (en) * | 2012-12-18 | 2013-06-05 | 杨晶 | High-sensitivity thermal-response platinum resistor temperature sensor |
-
2012
- 2012-12-18 CN CN201210552617.5A patent/CN103033280B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1083750A (en) * | 1965-10-01 | 1967-09-20 | Rosemount Eng Co Ltd | Improvements in or relating to temperature sensors |
| JPH04259833A (en) * | 1991-02-14 | 1992-09-16 | Okazaki Seisakusho:Kk | High speed response type temperature sensor |
| CN2108912U (en) * | 1991-10-12 | 1992-07-01 | 高云金 | Platinum thermo-resistance |
| JP3027938B2 (en) * | 1996-04-19 | 2000-04-04 | 松下電器産業株式会社 | Temperature detector |
| CN101487804B (en) * | 2008-12-26 | 2012-01-11 | 中国人民解放军第五七一九工厂 | Lubricating grease dropping point temperature measuring sensor |
| CN102062643A (en) * | 2009-11-16 | 2011-05-18 | 上海岗崎控制仪表有限公司 | Wear-resistant quick temperature measuring platinum resistance thermometer |
| CN201622136U (en) * | 2010-01-30 | 2010-11-03 | 杨晶 | High-performance platinum thermal resistance temperature sensor |
| CN202974489U (en) * | 2012-12-18 | 2013-06-05 | 杨晶 | High-sensitivity thermal-response platinum resistor temperature sensor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557889A (en) * | 2013-11-14 | 2014-02-05 | 无锡信大气象传感网科技有限公司 | Device for improving response speed of temperature and humidity sensor |
| CN104330163A (en) * | 2014-11-07 | 2015-02-04 | 中国兵器工业集团第二一四研究所苏州研发中心 | Novel steel rail thermometer |
| CN107014513A (en) * | 2017-04-14 | 2017-08-04 | 东南大学 | A kind of bushing type platinum resistance temperature sensing device |
| CN106932111A (en) * | 2017-04-28 | 2017-07-07 | 上海岗崎控制仪表有限公司 | A kind of quick conduction heat sensor structures and methods |
| CN108151778A (en) * | 2018-01-11 | 2018-06-12 | 上海智密技术工程研究所有限公司 | A kind of explosion-proof sensor |
| CN108151778B (en) * | 2018-01-11 | 2021-05-11 | 上海智密技术工程研究所有限公司 | Explosion-proof sensor |
Also Published As
| Publication number | Publication date |
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| CN103033280B (en) | 2015-01-14 |
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Owner name: DANDONG YALUJIANG SENSITIVE ELEMENT CO., LTD. Free format text: FORMER OWNER: YANG JING Effective date: 20150610 |
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Effective date of registration: 20150610 Address after: 118000 No. 6 Factory Road, Zhenxing District, Liaoning, Dandong Patentee after: DANDONG YALUJIANG SENSITIVE CO., LTD. Address before: 118000 No. 6 Factory Road, Zhenxing District, Liaoning, Dandong Patentee before: Yang Jing |