GB1507367A - Automatic radiation pyrometer - Google Patents
Automatic radiation pyrometerInfo
- Publication number
- GB1507367A GB1507367A GB1923475A GB1923475A GB1507367A GB 1507367 A GB1507367 A GB 1507367A GB 1923475 A GB1923475 A GB 1923475A GB 1923475 A GB1923475 A GB 1923475A GB 1507367 A GB1507367 A GB 1507367A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ratio
- radiation
- source
- temperature
- secondary source
- 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 7
- 229910052732 germanium Inorganic materials 0.000 abstract 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 abstract 1
- 238000001228 spectrum Methods 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
- G01J5/60—Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Abstract
1507367 Radiation pyrometers SIEMENS AG 7 May 1975 [10 June 1974] 19234/75 Heading G1A A radiation pyrometer for measuring the temperature of a primary source measures the amount of radiation received from that source in each of two different wavelength ranges, and stores the ratio of these amounts; the pyrometer has a secondary source whose temperature is adjusted until the ratio of the amount of radiation it emits in the same two ranges equals the stored ratio, at which point the temperature of the secondary source, which then equals that of the primary source, is measured. In Fig. 1, the radiation from primary source 1 to be investigated is received by two photodetectors 3,3' responsive to differing parts of the spectrum, and the ratio of the detector signals is found at 4. With switch 5 as shown the ratio is fed to store 6, the stored value being supplied to a comparator 7. Once the ratio has been stored, control unit 10 activates a power supply 9 for the secondary source 8 and also changes over switch 5. Whe comparator 7 signals that the ratio equals the stored value, unit 10 triggers a measurement of the secondary source temperature, this being effected at 12 by measuring the heating current or the resistance. The temperature is read out on digital display 11. The secondary source 8 should be made of a material producing the same spectral radiation distribution as that of the primary source to be measured. The photo-detectors may be semiconductors, e.g. germanium.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742427892 DE2427892C3 (en) | 1974-06-10 | Radiation pyrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1507367A true GB1507367A (en) | 1978-04-12 |
Family
ID=5917739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1923475A Expired GB1507367A (en) | 1974-06-10 | 1975-05-07 | Automatic radiation pyrometer |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2280065A1 (en) |
| GB (1) | GB1507367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2156071A (en) * | 1984-03-15 | 1985-10-02 | Williamson Corp | Temperature measuring apparatus |
| US8309924B2 (en) | 2007-11-05 | 2012-11-13 | Institut Fuer Mikroelektronik Stuttgart | Circuit arrangement and imaging pyrometer for generating light- and temperature-dependent signals |
-
1975
- 1975-05-07 GB GB1923475A patent/GB1507367A/en not_active Expired
- 1975-06-05 FR FR7517586A patent/FR2280065A1/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2156071A (en) * | 1984-03-15 | 1985-10-02 | Williamson Corp | Temperature measuring apparatus |
| US8309924B2 (en) | 2007-11-05 | 2012-11-13 | Institut Fuer Mikroelektronik Stuttgart | Circuit arrangement and imaging pyrometer for generating light- and temperature-dependent signals |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2280065B3 (en) | 1978-12-29 |
| DE2427892A1 (en) | 1975-12-18 |
| DE2427892B2 (en) | 1976-07-08 |
| FR2280065A1 (en) | 1976-02-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |