GB1092590A - Improvements in or relating to air-purge units for radiation pyrometers - Google Patents
Improvements in or relating to air-purge units for radiation pyrometersInfo
- Publication number
- GB1092590A GB1092590A GB34912/66A GB3491266A GB1092590A GB 1092590 A GB1092590 A GB 1092590A GB 34912/66 A GB34912/66 A GB 34912/66A GB 3491266 A GB3491266 A GB 3491266A GB 1092590 A GB1092590 A GB 1092590A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- pyrometer
- tube
- window
- lens
- 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
Links
- 230000005855 radiation Effects 0.000 title abstract 4
- 238000010926 purge Methods 0.000 title 1
- 229910000906 Bronze Inorganic materials 0.000 abstract 1
- 239000010974 bronze Substances 0.000 abstract 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000002689 soil Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/05—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/05—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path
- G01J5/051—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path using a gas purge
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Abstract
1,092,590. Radiation pyrometer. LAND PYROMETERS Ltd. Aug. 4, 1966, No. 34912/66. Heading G1A. In a temperature measuring radiation pyrometer of the type in which a photo-cell is located at the rear end of a tube and a radiation transmitting window at the front end, a stream of air rises from an annular diffusing element surrounding the front end of the tube in an axial direction away from the window. In one arrangement (Fig. 1) air enters at port 11 and flows via a passage 20 surrounding the pyrometer tube 7, containing photo-cell 4 calibrating aperture 5 and window lens 3, to enter an annular chamber 13 and exits via an annular bronze diffusing plate 14 forming the front wall of chamber 13. Air issuing from the diffusing plate into the conical nozzle 15 flows in an axial direction without creating any swirls which would draw air backwards on to the lens to soil it. The positive pressure within the nozzle prevents ambient atmosphere from reaching the lens. Support for the pyrometer is provided by ball and socket 26 and/or the mounting plate 23. In a modified arrangement Fig. 2 (not shown) air does not travel the length of the pyrometer tube but enters chamber 13 directly at the window end.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB34912/66A GB1092590A (en) | 1966-08-04 | 1966-08-04 | Improvements in or relating to air-purge units for radiation pyrometers |
US579078A US3436965A (en) | 1966-08-04 | 1966-09-13 | Air-purge units for radiation pyrometers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB34912/66A GB1092590A (en) | 1966-08-04 | 1966-08-04 | Improvements in or relating to air-purge units for radiation pyrometers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1092590A true GB1092590A (en) | 1967-11-29 |
Family
ID=10371446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34912/66A Expired GB1092590A (en) | 1966-08-04 | 1966-08-04 | Improvements in or relating to air-purge units for radiation pyrometers |
Country Status (2)
Country | Link |
---|---|
US (1) | US3436965A (en) |
GB (1) | GB1092590A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2158576A (en) * | 1984-05-12 | 1985-11-13 | Smiths Industries Plc | Radiation pyrometer |
JPS62297724A (en) * | 1986-06-17 | 1987-12-24 | Mitsubishi Metal Corp | Radiation temperature measuring instrument |
EP0588742A1 (en) * | 1992-09-18 | 1994-03-23 | Sollac | Optical pyrometer and its alignment tube supporting device on the roof of an industrial furnace |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4037473A (en) * | 1971-09-16 | 1977-07-26 | International Harvester Company | Radiation pyrometers with purging fluid |
BE830895A (en) * | 1975-07-01 | 1976-01-02 | DEVICE FOR MONITORING THE INTERIOR OF A SPEAKER | |
US4063458A (en) * | 1976-07-27 | 1977-12-20 | Klockner Humboldt Deutz Aktiengesellschaft | Method and apparatus for operating instruments subject to radiation |
US4259866A (en) * | 1979-03-22 | 1981-04-07 | Ppg Industries, Inc. | Pyrometer assembly having a heated viewing tube |
US4303435A (en) * | 1979-03-22 | 1981-12-01 | Ppg Industries, Inc. | Glass ribbon float tank with a pyrometer assembly having a heated viewing tube and method of use |
DE3044104A1 (en) * | 1980-11-24 | 1982-06-03 | Deutag-Mischwerke & Fertighaus GmbH, 5000 Köln | RADIATION SENSORS FOR MEASURING TEMPERATURES OF HEATED DEGREE MATERIALS, ESPECIALLY BITUMINOUS MIXED MATERIAL |
DE3104258A1 (en) * | 1981-02-07 | 1982-10-21 | Ruhrchemie Ag, 4200 Oberhausen | DEVICE FOR MEASURING TEMPERATURES IN PRESSURE REACTORS |
US4391584A (en) * | 1981-09-11 | 1983-07-05 | Burlington Industries, Inc. | Non-contact infrared fabric temperature monitoring |
US4648711A (en) * | 1984-06-08 | 1987-03-10 | The Dow Chemical Company | Sight tube assembly and sensing instrument for controlling a gas turbine |
US4786188A (en) * | 1986-02-27 | 1988-11-22 | Rosemont Inc. | Purge air system for a combustion instrument |
US4836689A (en) * | 1986-02-27 | 1989-06-06 | Rosemount Inc. | Asymmetric purge air system for cleaning a lens |
GB9411160D0 (en) * | 1994-06-03 | 1994-07-27 | Land Infrared Ltd | Improvements relating to radiation thermometers |
US6695886B1 (en) * | 2002-08-22 | 2004-02-24 | Axcelis Technologies, Inc. | Optical path improvement, focus length change compensation, and stray light reduction for temperature measurement system of RTP tool |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2074641A (en) * | 1934-05-23 | 1937-03-23 | Ici Ltd | Measurement of high temperatures |
US2369624A (en) * | 1942-02-13 | 1945-02-13 | Brown Instr Co | Pyrometry |
US2497783A (en) * | 1945-07-24 | 1950-02-14 | Hagan Corp | Radiation pyrometer |
GB620766A (en) * | 1946-06-18 | 1949-03-30 | Jessop William & Sons Ltd | Improvements in or relating to radiation-measuring devices |
US2909908A (en) * | 1956-11-06 | 1959-10-27 | Little Inc A | Miniature refrigeration device |
DE1473305A1 (en) * | 1964-06-05 | 1969-04-10 | Polysius Gmbh | Device for temperature measurement in a rotary kiln |
-
1966
- 1966-08-04 GB GB34912/66A patent/GB1092590A/en not_active Expired
- 1966-09-13 US US579078A patent/US3436965A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2158576A (en) * | 1984-05-12 | 1985-11-13 | Smiths Industries Plc | Radiation pyrometer |
US4650318A (en) * | 1984-05-12 | 1987-03-17 | Smiths Industries Public Limited Company | Radiation pyrometer with gas purge |
JPS62297724A (en) * | 1986-06-17 | 1987-12-24 | Mitsubishi Metal Corp | Radiation temperature measuring instrument |
JPH0713580B2 (en) * | 1986-06-17 | 1995-02-15 | 三菱マテリアル株式会社 | Radiation temperature measuring device |
EP0588742A1 (en) * | 1992-09-18 | 1994-03-23 | Sollac | Optical pyrometer and its alignment tube supporting device on the roof of an industrial furnace |
FR2695989A1 (en) * | 1992-09-18 | 1994-03-25 | Lorraine Laminage | Support device for an optical pyrometer and its sighting tube on the roof of an industrial oven. |
Also Published As
Publication number | Publication date |
---|---|
US3436965A (en) | 1969-04-08 |
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