CN104614088B - High-precision wall surface temperature measurement apparatus - Google Patents
High-precision wall surface temperature measurement apparatus Download PDFInfo
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- CN104614088B CN104614088B CN201510025845.0A CN201510025845A CN104614088B CN 104614088 B CN104614088 B CN 104614088B CN 201510025845 A CN201510025845 A CN 201510025845A CN 104614088 B CN104614088 B CN 104614088B
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Abstract
A kind of high-precision wall surface temperature measurement apparatus, including seat part, probe segment and metal catheter, wherein：The end of metal catheter and seat part elastic connection, head end are flexibly connected with probe segment；Probe segment includes：Metal spool, probe body, temperature-sensing element and the metal contact chip being fixedly connected sequentially, wherein：One end of metal spool is socketed on inside metal catheter and the other end is fixedly connected with probe body.The present apparatus is fixed on above wall, makes probe and wall keep being in close contact to measure the temperature of wall by the spring force in stand of popping one's head in, and temperature-sensitive ability is strong, and output signal is big, and measurement accuracy is high.
Description
Technical field
The present invention relates to a kind of technology in temperature detection field, is specifically that one kind uses thermal resistance high-acruracy survey wall
The device of face temperature.
Background technology
The measurement of wall surface temperature is very extensive in the industrial production.Sent out by the retrieval to existing literature and actual investigate
Existing, the measurement of current most wall surface temperatures is implemented using the thermocouple directly pasted or point is welded on tested wall.By
It is relatively small in the measurement signal of thermocouple, only tens millivolts, in actual applications easily by external interference, caused by measurement
Deviation is generally up to several DEG C even more than ten DEG C.Other direct spot welding or the thermocouple being pasted onto on wall, itself is more fragile, holds
It is fragile, it is not easy to remove, bring inconvenience to practical application.
Found by the retrieval to prior art, Chinese patent literature CN203148582U discloses (bulletin) day
2013.08.21, a kind of non-adhesive type surface temperature measurement thermocouple, including thermocouple temperature measurement working face 1, heat-insulated silicon rubber are disclosed
2, fixed copperhead 3, sliding bar 4, holddown spring 5, slide cartridge 6, bar and mounting bracket 7 and temperature thermocouple lead-out wire 8 is fixedly mounted；
The positive and negative polarities point of temperature thermocouple lead-out wire 8 is welded on thermocouple temperature measurement working face 1, and thermocouple temperature measurement working face 1 is silver-bearing copper
Piece, stuffed heat insulated silicon rubber 2 and the two is bonded together between thermocouple temperature measurement working face 1 and fixed copperhead 3, sliding bar 4 one
End is welded with fixed copperhead 3, is positioned in one end insertion slide cartridge 6 and with holddown spring 5 and the inwall of slide cartridge 6, bar and peace is fixedly mounted
Dress one end of support 7 is welded with slide cartridge 6, and as installation clamping working face, thermocouple can be adjusted by changing installation site for its outer surface
Contact traction between thermometric working face 1 and measurand.But the technology can not solve to measure that contact surface is small, measurement signal is easily by outer
The technical problems such as boundary disturbs, measurement accuracy is low.
The content of the invention
The present invention is directed to deficiencies of the prior art, proposes a kind of high-precision wall surface temperature measurement apparatus, passes through
Spring mechanical is pressed on wall, and thermometric contact surface is big, measurement accuracy is high, compound linear is good, so as to improve wall temperature measuring equipment
The accuracy of measurement, reliability, and it is maintainable.
The present invention is achieved by the following technical solutions：
The present invention includes：Including：Seat part, probe segment and metal catheter, wherein：The end of metal catheter and stand
Partial elastic is connected, and head end is flexibly connected with probe segment.
Described probe segment includes：Metal spool, probe body, temperature-sensing element and the metal contact being fixedly connected sequentially
Piece, wherein：One end of metal spool is socketed on inside metal catheter and the other end is fixedly connected with probe body.
Described seat part includes：Clamp nut and probe stand body, wherein：Metal catheter is movably set in probe
The inside and end of stand body are in contact with clamp nut by elastic component.
Filled insulation is filled with the cavity that the medial surface of described metal contact chip is formed with probe body.
Described probe body is made of fiberglass rod.
Described metal contact chip is nickel foil piece.
Described temperature-sensing element uses thermal resistance RTD.
Technique effect
Compared with prior art, the technology of the present invention effect includes：
1) wall surface temperature is measured using the probe contacts wall of spring pre-tightening, bullet can be adjusted by adjusting clamp nut
Spring pretightning force；
2) temperature-sensing element uses thermal resistance RTD, and output signal is relatively large, strong antijamming capability；Wrapped up and felt using scolding tin
Simultaneously soldering in metal contact chip, enhances the temperature-sensitive ability of temperature-sensing element to warm element.
3) filling heat insulator in the cavity of probe body, leakage heat is reduced most possibly.
4) temperature measuring equipment is corrosion-resistant, thermometric contact surface is big, measurement accuracy is high, compound linear is good, has larger measurement range.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is sonde configuration schematic diagram；
In figure：1 clamp nut, 2 elastic components, 3 probe stand bodies, 4 metal catheters, 5 pads, 6 fixing nuts, 7 metals
Spool, 8AB glue, 9 probe bodies, 10 filled insulations, 11 scolding tin, 12 temperature-sensing elements, 13 metal contact chips, 14 sensors draw
Line.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out lower premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
As shown in figure 1, the present embodiment includes：Seat part, probe segment and metal catheter 4, wherein：Metal catheter 4
End and seat part elastic connection, head end are flexibly connected with probe segment.
Described seat part includes：Clamp nut 1 and probe stand body 3, wherein：Metal catheter 4 is movably set in
The inside and end of probe stand body 3 are in contact with clamp nut 1 by elastic component 2.
Described elastic component 2 is preferably pre-pressing spring.
The top of described probe stand body 3 is provided with fixing nut 6, and the fixing nut 6 is used to fix detection means
Frame above tested wall.
At least one pad 5 is preferably provided between described fixing nut 6 and probe stand body 3.
As shown in Fig. 2 described probe segment includes：Metal spool 7, probe body 9, the temperature-sensitive being fixedly connected sequentially are first
Part 12 and metal contact chip 13, wherein：One end of metal spool 7 is socketed on the inside of metal catheter 4 and the other end and probe body 9
It is fixedly connected by AB glue 8.
The signal end of described temperature-sensing element 12 passes sequentially through wire from probe body 9, metal catheter 4 to probe stand sheet
Body 3, then drawn by sensor lead 14.
Filled insulation 10 is filled with the cavity that the medial surface of described metal contact chip 13 is formed with probe body 9.
As shown in Fig. 2 described probe body 9 is made of fiberglass rod, there is high-strength light, corrosion-resistant, thermal insulation
The features such as good.
Described metal contact chip 13 is nickel foil piece, corrosion-resistant, thermal conductivity is good.
Described temperature-sensing element 12 is using the parcel of scolding tin 11 and soldering is in metal contact chip 13.
Measurement is accomplished by the following way in the present apparatus：
1 is fixed on the device in the frame above tested wall by fixing nut.
2 adjust clamp nut according to wall situation, obtain suitable thrust.
3 connection thermal resistors are to data acquisition unit or temperature transmitter.The temperature measurement signal of tested wall can be obtained.
Claims (1)
1. a kind of high-precision wall surface temperature measurement apparatus, its feature include：Seat part, probe segment and metal catheter, wherein：
The end of metal catheter and seat part elastic connection, head end are flexibly connected with probe segment；
Described seat part includes：Clamp nut and probe stand body, wherein：Metal catheter is movably set in probe stand
The inside and end of body are in contact with clamp nut by elastic component；Described probe segment includes：It is fixedly connected sequentially
Metal spool, probe body, temperature-sensing element and metal contact chip, wherein：One end of metal spool is socketed on inside metal catheter
And the other end is fixedly connected with probe body；The signal end of described temperature-sensing element passes sequentially through wire from probe body, metal
Then conduit is drawn to stand body of popping one's head in by sensor lead；
The top of described probe stand body is provided with fixing nut, and the fixing nut is used to survey the high-precision wall surface temperature
Amount device is fixed on the frame above tested wall；Described elastic component is pre-pressing spring；Described metal spool and probe
Body is fixedly connected by AB glue；Described probe body is made of fiberglass rod；Described temperature-sensing element uses thermal resistance
RTD, and simultaneously soldering is wrapped up in metal contact chip by scolding tin；Described metal contact chip is nickel foil piece；Described metal connects
Filled insulation is filled with the cavity that the medial surface of contact is formed with probe body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510025845.0A CN104614088B (en) | 2015-01-19 | 2015-01-19 | High-precision wall surface temperature measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510025845.0A CN104614088B (en) | 2015-01-19 | 2015-01-19 | High-precision wall surface temperature measurement apparatus |
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| Publication Number | Publication Date |
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| CN104614088A CN104614088A (en) | 2015-05-13 |
| CN104614088B true CN104614088B (en) | 2017-11-10 |
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| CN201510025845.0A Active CN104614088B (en) | 2015-01-19 | 2015-01-19 | High-precision wall surface temperature measurement apparatus |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953471A (en) * | 2017-05-24 | 2017-07-14 | 合肥巨动力***有限公司 | Hybrid powder motor stator winding temperature measurement structure |
| CN113532675B (en) * | 2021-07-22 | 2023-07-14 | 中国北方车辆研究所 | Interface method and structure for contact type temperature measurement |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2039838U (en) * | 1988-12-03 | 1989-06-21 | 航天工业部一院七○四所 | Platinum thermal resistance temp. sensor |
| CN2072221U (en) * | 1990-05-18 | 1991-02-27 | 浙江省鄞县热电偶厂 | Spring-pressing fix type thermocouple |
| JP2858220B2 (en) * | 1994-09-13 | 1999-02-17 | 川惣電機工業株式会社 | Temperature sensor element in temperature measuring device |
| JP4582618B2 (en) * | 2003-05-02 | 2010-11-17 | 日本特殊陶業株式会社 | Temperature sensor |
| CN101806638B (en) * | 2009-02-13 | 2011-11-16 | 天津市中环温度仪表有限公司 | Quick-response leakproof high-temperature thermocouple |
| CN101929894A (en) * | 2009-06-19 | 2010-12-29 | 张华文 | Heat probe |
| CN202938921U (en) * | 2012-07-12 | 2013-05-15 | 湖南镭目科技有限公司 | Integrated thermocouple temperature sensor |
| CN203732173U (en) * | 2014-01-18 | 2014-07-23 | 淄博飞雁先行测控技术有限公司 | Resistance thermometer for end surface |
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2015
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