JPS5646436A - Temperature detector - Google Patents
Temperature detectorInfo
- Publication number
- JPS5646436A JPS5646436A JP12237379A JP12237379A JPS5646436A JP S5646436 A JPS5646436 A JP S5646436A JP 12237379 A JP12237379 A JP 12237379A JP 12237379 A JP12237379 A JP 12237379A JP S5646436 A JPS5646436 A JP S5646436A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- measurement
- light
- piezoelectric element
- absorbers
- 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.)
- Pending
Links
- 239000006096 absorbing agent Substances 0.000 abstract 3
- 238000005259 measurement Methods 0.000 abstract 3
- 239000013307 optical fiber Substances 0.000 abstract 2
- 230000035945 sensitivity Effects 0.000 abstract 2
- 239000007787 solid Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 230000003287 optical effect 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
- G01J5/60—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)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Radiation Pyrometers (AREA)
Abstract
PURPOSE:To ensure a measurement of temperature with high sensitivity and high accuracy, by leading the light from the object to receive a measurement of temperature through the optical fiber to project it onto the solid absorber after modulation by the chopper, detecting the elastic wave thus produced by the piezoelectric element and then obtaining the temperature of the object to receive a measurement of temperature by the output of the piezoelectric element. CONSTITUTION:The light from the object 1 is led through the optical fiber 10 and then divided into two optical paths by the distributor 14 to be projected onto the solid absorbers 12 and 12a after modulated by the choppers 11 and 11a each. The absorbers 12 and 12a have the absorbing bands with different wavelengths, and thus the electric output corresponding to the intensity of the light absorbed is obtained through the pizeoelectric elements 13 and 13a each. These signals are processed by the signal process circuit 15 respectively, and the temperature of the object 1 can be obtained from the ratio between those outputs. As a result, the temperature can be measured with high sensitivity and high accuracy and with no contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12237379A JPS5646436A (en) | 1979-09-21 | 1979-09-21 | Temperature detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12237379A JPS5646436A (en) | 1979-09-21 | 1979-09-21 | Temperature detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5646436A true JPS5646436A (en) | 1981-04-27 |
Family
ID=14834234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12237379A Pending JPS5646436A (en) | 1979-09-21 | 1979-09-21 | Temperature detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5646436A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5507576A (en) * | 1993-04-01 | 1996-04-16 | European Gas Turbines Sa | Bichromatic pyrometer |
| US6007242A (en) * | 1997-01-31 | 1999-12-28 | Sanyo Electric Co., Ltd. | Infrared temperature sensor for a cooking device |
| US6817758B2 (en) * | 2001-04-04 | 2004-11-16 | Noritake Co., Limited | Temperature distribution measuring method and apparatus |
-
1979
- 1979-09-21 JP JP12237379A patent/JPS5646436A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5507576A (en) * | 1993-04-01 | 1996-04-16 | European Gas Turbines Sa | Bichromatic pyrometer |
| US6007242A (en) * | 1997-01-31 | 1999-12-28 | Sanyo Electric Co., Ltd. | Infrared temperature sensor for a cooking device |
| US6817758B2 (en) * | 2001-04-04 | 2004-11-16 | Noritake Co., Limited | Temperature distribution measuring method and apparatus |
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