CN2329962Y - Infrared thermocouple - Google Patents
Infrared thermocouple Download PDFInfo
- Publication number
- CN2329962Y CN2329962Y CN 98223815 CN98223815U CN2329962Y CN 2329962 Y CN2329962 Y CN 2329962Y CN 98223815 CN98223815 CN 98223815 CN 98223815 U CN98223815 U CN 98223815U CN 2329962 Y CN2329962 Y CN 2329962Y
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- thermocouple
- infrared thermometer
- infra
- utility
- model
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Abstract
The utility model relates to an infrared thermocouple for measuring temperature with the range of from 700 DEG C to 1800 DEG C in industrial temperature measurement. The utility model is composed of an infrared thermometer and a protective sleeve for a thermocouple of a blackbody chamber which is formed at the front end of the infrared thermometer. The sleeve diameter D position of the protective sleeve for the thermocouple, which is away 9 times to 11 times of distance L at the front end part of the sleeve, is engraved with a marking H, and the blackbody chamber is formed. The end part of the protective sleeve for the thermocouple is spherical. The utility model has the advantages of long service life of the infrared thermometer, sensitive response, and high precision of temperature measurement of the thermocouple. The utility model is a meter combining the advantages of the infrared thermometer with the advantages of the thermocouple, and the popularization and the application of the utility model can be acquired in the industrial temperature measurement.
Description
The utility model relates to industrial temperature measurement infra-red heat galvanic couple in 700 ℃～1800 ℃ scopes of a kind of measurement.
At present, in 700 ℃～1800 ℃ scopes, infrared thermometer and platinum rhodium thermocouple (comprising platinum rhodium 30-platinum rhodium 6, platinum rhodium 10-platinum, platinum rhodium 13-platinum) are the temperature instrumentations of using always.The advantage of thermopair is the temperature measurement accuracy height, can survey the medium internal temperature.Shortcoming is to work in reducing atmosphere, because in these atmosphere, its thermo wires can embrittlement, and is rotten and lost efficacy; Because thermo wires is at high temperature to work, its life-span is shorter, owing to use noble metal, its price height.The advantage of infrared thermometer is that the life-span is long, is quick on the draw.Shortcoming is: temperature measurement accuracy is subjected to the medium influence in variation of measured surface emissivity and the radiation delivery path, so not too high usually.
The purpose of this utility model overcome thermopair thermo wires fragile and infrared thermometer in reducing atmosphere changed by the measured target emissivity and radiation delivery path medium to the shortcoming of the influence of temperature measurement accuracy, a kind of infra-red heat galvanic couple that infrared thermometer and thermopair advantages are got up is provided.
The technical solution of the utility model is finished like this, and it is made of the thermocouple protective casing that forms blackbody chamber that infrared thermometer and front end thereof are equipped with.
The temperature that infrared thermometer is recorded is near true temperature; measured target must be near black matrix; make thermocouple protective casing in certain zone, form blackbody cavity; this is a key of infra-red heat galvanic couple; here adopted two kinds of enforceable schemes, first scheme is the internal diameter thickness according to sleeve pipe, makes a mark at the outside surface of sleeve pipe; according to the test of reality, can be that a mark H is carved with at 8～10 times of casing inner diameter D places from the cannula tip distance L.During thermometric, as long as when the degree of depth that the infra-red heat galvanic couple is inserted measured medium surpasses this mark, the end of sleeve pipe just forms approximate blackbody chamber, and infra-red heat galvanic couple indicating value is the true temperature in tested zone like this.Second kind of scheme is that sphere is made in the thermocouple protective casing end, and when this spherical part inserted measured medium, spherical part formed black matrix, and this moment, the indicating value of infra-red heat galvanic couple also was the true temperature in tested zone.Because thermocouple protective casing seals, so thermometric is not subjected to medium influence.Be the true temperature in tested zone when the measured temperature of thermopair.Because the infrared measurement of temperature part does not directly contact tested zone, so infrared measurement of temperature has partly kept long advantage of its life-span.
The utility model embodiment is described further in conjunction with the accompanying drawings.
Fig. 1 is the utility model structure principle chart,
Fig. 2 is spherical structural representation for the thermocouple well tube end.
Embodiment 1:
By shown in Figure 1; the thermocouple protective casing 1 that the infrared thermometer that the optical system 2 that the infra-red heat galvanic couple is made up of lens, Guang Lan, optical filter, infrared eye 3, amplifier 4 are formed and its front end are equipped with mark H constitutes, and mark H can be 8～10 times of casing inner diameter D from the distance L of cannula tip.
Embodiment 2:
By shown in Figure 2, with embodiment 1 the end of different thermocouple protective casing 1 make sphere, like this, spherical part forms approximate black matrix.
Optical system 2 also can be replaced by optical fiber in above two embodiment, and temperature measurement signal is connected to infrared survey device again after Optical Fiber Transmission.
The utility model has the temperature measurement accuracy height, has the life-span long again, and the advantage that is quick on the draw is with infrared thermometer A kind of instrument that combines with the technical advantage of thermocouple.
Claims (5)
1, a kind of infra-red heat galvanic couple is characterized in that, it is made of the thermocouple protective casing that infrared thermometer and front end thereof form blackbody chamber.
2, infra-red heat galvanic couple according to claim 1 is characterized in that, described thermocouple protective casing is carved with a mark H at the casing diameter D place that from its end distance L is 8～10 times.
3, infra-red heat galvanic couple according to claim 1 is characterized in that, the end of thermocouple protective casing is spherical.
4, infra-red heat galvanic couple according to claim 1 is characterized in that, optical system, infrared eye and amplifier that described infrared thermometer hands over sheet to form by lens, Guang Lan, filter are formed.
5, infra-red heat galvanic couple according to claim 1 is characterized in that, infrared thermometer also can be made up of Transmission Fibers, infrared eye and amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98223815 CN2329962Y (en) | 1998-04-24 | 1998-04-24 | Infrared thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98223815 CN2329962Y (en) | 1998-04-24 | 1998-04-24 | Infrared thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2329962Y true CN2329962Y (en) | 1999-07-21 |
Family
ID=33974821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98223815 Expired - Fee Related CN2329962Y (en) | 1998-04-24 | 1998-04-24 | Infrared thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2329962Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975622A (en) * | 2010-09-08 | 2011-02-16 | 中国科学院力学研究所 | Method for measuring temperature of part in laser manufacturing process |
| CN106323492A (en) * | 2015-06-30 | 2017-01-11 | 罗斯蒙特公司 | Thermowell with infrared sensor |
-
1998
- 1998-04-24 CN CN 98223815 patent/CN2329962Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975622A (en) * | 2010-09-08 | 2011-02-16 | 中国科学院力学研究所 | Method for measuring temperature of part in laser manufacturing process |
| CN106323492A (en) * | 2015-06-30 | 2017-01-11 | 罗斯蒙特公司 | Thermowell with infrared sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |