GB666523A - Improvements in or relating to optical radiation pyrometers - Google Patents
Improvements in or relating to optical radiation pyrometersInfo
- Publication number
- GB666523A GB666523A GB1722449A GB1722449A GB666523A GB 666523 A GB666523 A GB 666523A GB 1722449 A GB1722449 A GB 1722449A GB 1722449 A GB1722449 A GB 1722449A GB 666523 A GB666523 A GB 666523A
- Authority
- GB
- United Kingdom
- Prior art keywords
- photo
- cell
- electric
- situated
- employed
- 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
- 230000003287 optical effect Effects 0.000 title 1
- 230000005855 radiation Effects 0.000 title 1
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 abstract 2
- 235000014676 Phragmites communis Nutrition 0.000 abstract 1
- 230000035945 sensitivity Effects 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
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/28—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using photoemissive or photovoltaic cells
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
666,523. Photo-electric pyrometer. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 24, 1950 [June 29, 1949], No. 17224/49. Class 40 (iii). In a photo-electric pyrometer, to avoid errors due to temperature variations over the radiating surface and sensitivity variations over the photo-cell surface, an object lens L2 projects an image of the rear surface of the object lens L1 on to the photo-electric cell C. An apertured diaphragm A adjustable by a screw mechanism S serves to limit the area of the radiating surface from which heat rays are received by the cell. The diaphragm is situated at the conjugate focus of the radiating area. The photo-cell may be mounted in a detachable head H which may also contain the measuring equipment. If an alternating output is required from the photo-cell a vibrating reed may be employed as described in Specification 642,697, [Group XL (c)], or a chopping-wheel may be employed this wheel being situated between two diaphragms with aligned apertures. An infra-red filter I is inserted in front of lens Ll or may be inserted directly in front of cell C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1722449A GB666523A (en) | 1949-06-29 | 1949-06-29 | Improvements in or relating to optical radiation pyrometers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1722449A GB666523A (en) | 1949-06-29 | 1949-06-29 | Improvements in or relating to optical radiation pyrometers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB666523A true GB666523A (en) | 1952-02-13 |
Family
ID=10091415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1722449A Expired GB666523A (en) | 1949-06-29 | 1949-06-29 | Improvements in or relating to optical radiation pyrometers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB666523A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2788708A (en) * | 1953-07-28 | 1957-04-16 | Baird Associates Inc | Optical apparatus for collecting radiations from a field of view |
-
1949
- 1949-06-29 GB GB1722449A patent/GB666523A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2788708A (en) * | 1953-07-28 | 1957-04-16 | Baird Associates Inc | Optical apparatus for collecting radiations from a field of view |
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