JPS55138622A - Optical temperature sensing element - Google Patents
Optical temperature sensing elementInfo
- Publication number
- JPS55138622A JPS55138622A JP4662979A JP4662979A JPS55138622A JP S55138622 A JPS55138622 A JP S55138622A JP 4662979 A JP4662979 A JP 4662979A JP 4662979 A JP4662979 A JP 4662979A JP S55138622 A JPS55138622 A JP S55138622A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- refractive index
- light
- vessel
- read
- 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
- 230000003287 optical effect Effects 0.000 title abstract 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 6
- 239000011521 glass Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 1
- 239000013307 optical fiber Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 abstract 1
- 238000002834 transmittance Methods 0.000 abstract 1
- 239000012780 transparent material 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
- G01J5/48—Thermography; Techniques using wholly visual means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Abstract
PURPOSE:To measure temperature with good accuracy without accompanying danger by combining transparent materials of different temperature coefficients while having an equal refractive index in such a manner that the plane of light waves are disturbed in the wavelength regions of different refractive indices. CONSTITUTION:When the particles 3 composed of BK-3 glass are put in a vessel 2 provided with windows 1, 1' for incident and exit lights and liquid toluene 4 is sealed therein, gas 5 remains in the vessel. The optical guides 6, 6' of optical fibers which transmit the transmitted light of the element body formed in this way are provided. Light is passed in these optical guides 6, 6' and the spectra of the light transmitting through the element body are read. Although the refractive index of the BK-3 glass hardly receives the influence of temperature, the toluene 4 changes refractive index considerably and therefore the wavelengths deviate as well. Hence, if the wavelength position of the maximum transmittance is read and is contrasted with the relation with temperature having beforehand been obtained, the temperature may be readily and accurately measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4662979A JPS55138622A (en) | 1979-04-18 | 1979-04-18 | Optical temperature sensing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4662979A JPS55138622A (en) | 1979-04-18 | 1979-04-18 | Optical temperature sensing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55138622A true JPS55138622A (en) | 1980-10-29 |
Family
ID=12752578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4662979A Pending JPS55138622A (en) | 1979-04-18 | 1979-04-18 | Optical temperature sensing element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55138622A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0597137A (en) * | 1991-07-03 | 1993-04-20 | San Srl | Package for tubular article |
-
1979
- 1979-04-18 JP JP4662979A patent/JPS55138622A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0597137A (en) * | 1991-07-03 | 1993-04-20 | San Srl | Package for tubular article |
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