CN2359677Y - Infrared optical fibre temp. measuring head - Google Patents
Infrared optical fibre temp. measuring head Download PDFInfo
- Publication number
- CN2359677Y CN2359677Y CN 99222953 CN99222953U CN2359677Y CN 2359677 Y CN2359677 Y CN 2359677Y CN 99222953 CN99222953 CN 99222953 CN 99222953 U CN99222953 U CN 99222953U CN 2359677 Y CN2359677 Y CN 2359677Y
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- sleeve
- measuring head
- infrared optical
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 239000000523 sample Substances 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000005266 casting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 238000003723 Smelting Methods 0.000 abstract description 2
- 238000009529 body temperature measurement Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- -1 smog Substances 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
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Abstract
The utility model relates to an infrared optical fiber temperature measuring device used for smelting and casting. The infrared optical fiber temperature measuring device comprises a positioning cylinder, a hemispherical reflector, a focusing object lens, an optical fiber bundle, a filter, a detector and a temperature compensation circuit, wherein, the positioning cylinder nears the surface of melting liquid steel, and the hemispherical reflector buckles one end of the positioning cylinder above the surface of the liquid steel to be measured; the focusing object lens is installed at the top of the hemispherical reflector, one end surface of the optical fiber bundle is installed in the focal length position of the focusing objective lens, and the other end surface is coupled with the detector through the filter; the output end of the detector is connected with the temperature compensation circuit. The utility model has the advantages of accurate and quick temperature measurement, long service life and simple operation.
Description
The utility model relates to thermometry, the infrared optical fiber temperature measuring equipment of particularly a kind of smelting, casting usefulness.
The temperature survey of Metal Melting and casting has vital role with control to the quality of producing foundry goods.In actual production, the environment of Metal Melting, casting is very abominable, and if any dust, smog, slag and electromagnetic interference (EMI) etc., people adopt conventional thermocouple temperature measurement, and protecting tube must be arranged, and its response speed is slow, serviceable life short, complicated operation.
In order to overcome above-mentioned deficiency, the purpose of this utility model is to provide a kind of thermometric accurately, rapidly, and long service life is simple to operate, the infrared optical fiber temperature measuring head that applicability is strong.
To achieve these goals, the technical solution of the utility model is: by positioning tube, hemispherical reflector, focusing objective len, fibre-optic bundle, optical filter, the probe holder, detector, temperature-compensation circuit and handle constitute, wherein, the positioning tube of collecting infrared signal is the both ends open shape, approach the molten steel water surface, its inside surface mirror polish and gold-plated hemispherical reflector fasten positioning tube one end in tested molten steel surface top, focusing objective len is installed in the top of described hemispherical reflector by sleeve A, one end end face of fibre-optic bundle is installed on the focal length place of focusing objective len, its other end end face closes in the corner with detector mutually by optical filter, described detector output terminal is connected with compensating circuit, interior be the handle jacket of cavity on probe socket:
In addition, described positioning tube is made of pyrolytic graphite, and inwall is that diffuse scattering is high temperature resistant at the blackbody chamber more than 1800 ℃, to form the protection subenvironment of thermometric;
Also have, described fibre-optic bundle one end inserts sleeve A by outside sleeve B, the other end is plugged in the probe socket in optical filter the place ahead by the location jacket casing, and its outside is with the protection sleeve pipe, and described sleeve pipe one end entangles sleeve B in the insertion sleeve A by one section flexible pipe; Described probe socket is a tubular, and its outer wall has the cavity of temperature compensation device in the laying temperature compensating circuit, and described probe socket end is equipped with the tail cover; Be equipped with the temperature-compensation circuit circuit board in the cavity of described handle, the handle bottom is provided with wire hole.
The utlity model has thermometric accurately, rapidly, long service life, simple to operate, working stability is reliable, and applicability is strong, and advantage such as be not influenced by the adverse circumstances.
Fig. 1 is the utility model structural representation.
Below in conjunction with accompanying drawing principle of the present utility model and structure are described in further details.
As shown in Figure 1; the utility model front end is made up of positioning tube 1 and hemispherical reflector 2; wherein positioning tube 1 is the both ends open shape; and constitute the black matrix tube chamber of diffuse scattering by the pyrolytic graphite inwall; high temperature resistant reaching more than 1800 ℃; the polishing of hemispherical reflector 2 inside surfaces; gold-plated; be buckled in positioning tube 1 upper end to improve the effective emissivity of measured surface; when positioning tube 1 other end approaches molten steel surface; then form the protection subenvironment of a thermometric; the infrared radiation of molten steel arrives on the gold-plated inside surface of hemispherical reflector 2 through the black matrix tube chamber of positioning tube 1; through repeatedly reflecting on the focusing objective len 3 that concentrates in the sleeve A31 that is welded in hemispherical reflector 2 tops; described focusing objective len 3 is the quartzy object lens of plating diamond film; an end face of fibre-optic bundle 4 inserts sleeve A31 by sleeve B41; in the poly-place of Jiao of focusing objective len 3; its another end face closes in the corner with the detector 8 that is made of silicon photocell mutually by optical filter 7; described detector 8 output terminals connect compensating circuit and carry out temperature compensation; provide the nonlinear temperature magnitude of voltage of standard, show its temperature in real time through special digital thermometric gauge outfit then.
In addition; described fibre-optic bundle 4 outsides are with protection sleeve pipe 42; described sleeve pipe 42 1 ends by connected one section flexible pipe 44 from outside socket sleeve B41; its other end is inserted into 5 li of probe sockets by locating sleeve 43; described probe socket 5 terminal cover one opening tail covers 7; there is the thermistor cavity of putting in the temperature-compensation circuit 11 as temperature compensation device 111 described probe socket 5 belows; in be enclosed within probe socket 5 outsides for the handle 9 of cavity; temperature-compensation circuit 11 circuit boards place handle 9 cavitys, draw from the line outlet 10 of handle 9 afterbodys from the cable of circuit board.
Temperature-compensation circuit of the present utility model and special digital temperature measuring gauge are prior art.
Claims (5)
1. infrared optical fiber temperature measuring head, by positioning tube, hemispherical reflector, focusing objective len, fibre-optic bundle, optical filter, the probe holder, detector, temperature-compensation circuit and handle constitute, it is characterized in that: wherein, the positioning tube (1) of collecting infrared signal is the both ends open shape, approach the molten steel water surface, its inside surface mirror polish and gold-plated hemispherical reflector (2) fasten positioning tube (1) one end in tested molten steel surface top, focusing objective len (3) is installed in the top of described hemispherical reflector (2) by sleeve A (31), one end end face of fibre-optic bundle (4) is installed on the focal length place of focusing objective len (3), its other end end face closes in the corner with detector (8) mutually by optical filter (6), described detector (8) output terminal is connected with temperature-compensation circuit (11), interiorly is coated on the probe socket (5) for the handle of cavity (9).
2. according to the described infrared optical fiber temperature measuring head of claim 1, it is characterized in that: described positioning tube (1) is made of pyrolytic graphite, and inwall is that diffuse scattering is high temperature resistant at the blackbody chamber more than 1800 ℃.
3. according to the described infrared optical fiber temperature measuring head of claim 1; it is characterized in that: described fibre-optic bundle (4) one ends insert sleeve A (31) by outside sleeve B (41); the other end is plugged in probe socket (5) lining in optical filter (6) the place ahead by location jacket casing (43); its outside is with protection sleeve pipe (42), and described sleeve pipe (42) one ends entangle the sleeve B (41) that inserts sleeve A (31) lining by one section flexible pipe (44).
4. according to the described infrared optical fiber temperature measuring head of claim 1, it is characterized in that: described probe socket (5) is a tubular, its outer wall has the cavity of temperature compensation device (111) in the laying temperature compensating circuit (11), and described probe socket (5) end is equipped with tail cover (7).
5. according to the described infrared optical fiber temperature measuring head of claim 1, it is characterized in that: be equipped with temperature-compensation circuit (11) circuit board in the cavity of described handle (9), handle (9) bottom is provided with wire hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99222953 CN2359677Y (en) | 1999-03-03 | 1999-03-03 | Infrared optical fibre temp. measuring head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99222953 CN2359677Y (en) | 1999-03-03 | 1999-03-03 | Infrared optical fibre temp. measuring head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2359677Y true CN2359677Y (en) | 2000-01-19 |
Family
ID=34013246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99222953 Expired - Fee Related CN2359677Y (en) | 1999-03-03 | 1999-03-03 | Infrared optical fibre temp. measuring head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2359677Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607712A (en) * | 2011-01-20 | 2012-07-25 | 太阳能科技有限公司 | Temperature sensing system for rapid temperature program |
| CN102650550A (en) * | 2011-02-23 | 2012-08-29 | 贺利氏电子耐特国际股份公司 | Measuring device for measurement of parameters in molten masses |
| CN103344341A (en) * | 2013-07-16 | 2013-10-09 | 哈尔滨工业大学 | Radiation temperature measurement device and temperature control method thereof |
| WO2024013310A1 (en) | 2022-07-14 | 2024-01-18 | Trinamix Gmbh | Temperature drift compensation of photoresistors |
| WO2024013299A1 (en) | 2022-07-14 | 2024-01-18 | Trinamix Gmbh | Background-based correction of photodetector drift |
| WO2024013293A1 (en) | 2022-07-14 | 2024-01-18 | Trinamix Gmbh | Detector with temperature drift compensation |
-
1999
- 1999-03-03 CN CN 99222953 patent/CN2359677Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607712A (en) * | 2011-01-20 | 2012-07-25 | 太阳能科技有限公司 | Temperature sensing system for rapid temperature program |
| CN102607712B (en) * | 2011-01-20 | 2015-07-08 | 太阳能科技有限公司 | Temperature sensing system for rapid temperature program |
| CN102650550A (en) * | 2011-02-23 | 2012-08-29 | 贺利氏电子耐特国际股份公司 | Measuring device for measurement of parameters in molten masses |
| CN102650550B (en) * | 2011-02-23 | 2017-06-09 | 贺利氏电子耐特国际股份公司 | Measurement apparatus for measuring the parameter in melt substance |
| CN103344341A (en) * | 2013-07-16 | 2013-10-09 | 哈尔滨工业大学 | Radiation temperature measurement device and temperature control method thereof |
| WO2024013310A1 (en) | 2022-07-14 | 2024-01-18 | Trinamix Gmbh | Temperature drift compensation of photoresistors |
| WO2024013299A1 (en) | 2022-07-14 | 2024-01-18 | Trinamix Gmbh | Background-based correction of photodetector drift |
| WO2024013293A1 (en) | 2022-07-14 | 2024-01-18 | Trinamix Gmbh | Detector with temperature drift compensation |
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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 |