JPS6172653U - - Google Patents
Info
- Publication number
- JPS6172653U JPS6172653U JP1984157607U JP15760784U JPS6172653U JP S6172653 U JPS6172653 U JP S6172653U JP 1984157607 U JP1984157607 U JP 1984157607U JP 15760784 U JP15760784 U JP 15760784U JP S6172653 U JPS6172653 U JP S6172653U
- Authority
- JP
- Japan
- Prior art keywords
- light
- temperature
- light source
- spectrometer
- temperature sensor
- 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
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Description
第１図はこの考案の一実施例を示す構成図、第
２図は、従来の装置の一例を示す構成図、第３図
は第２図の温度センサの波長依存性と温度との関
係図、第４図は第２図の発光素子のスペクトルと
温度センサの透過光との関係を示す図である。
図において、２，４は光フアイバ、６は光源と
しての発光素子、９は温度センサ、１５は分光器
としての回折格子、１６はフオトダイオードアレ
イ、１８は処理回路、１９はコンデンサ、２１は
パルス発生器である。なお、各図中同一符号は同
一又は相当部分を示す。
Fig. 1 is a block diagram showing an embodiment of this invention, Fig. 2 is a block diagram showing an example of a conventional device, and Fig. 3 is a diagram of the relationship between wavelength dependence and temperature of the temperature sensor shown in Fig. 2. , FIG. 4 is a diagram showing the relationship between the spectrum of the light emitting element of FIG. 2 and the transmitted light of the temperature sensor. In the figure, 2 and 4 are optical fibers, 6 is a light emitting element as a light source, 9 is a temperature sensor, 15 is a diffraction grating as a spectrometer, 16 is a photodiode array, 18 is a processing circuit, 19 is a capacitor, and 21 is a pulse It is a generator. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
料からなる温度センサを光フアイバの通路に設け
、光源からの光を上記温度センサに導き、上記温
度センサを透過した光を分光器で分光した後電気
信号に変換し、所定レベル以上の光出力の波長成
分の最低波長から温度を測定するものにおいて、
上記光源を光強度変調して上記分光器の出力を交
流結合で取り出して信号処理することを特徴とす
る温度測定装置。 (2) 光源の光強度変調する手段として特定の周
波数でパレス駆動することを特徴とする実用新案
登録請求の範囲第１項記載の温度測定装置。[Claims for Utility Model Registration] (1) A temperature sensor made of a material whose light transmittance changes as a function of temperature is provided in the path of the optical fiber, and light from a light source is guided to the temperature sensor. In a device that separates the transmitted light with a spectrometer and then converts it into an electrical signal, and measures the temperature from the lowest wavelength of the wavelength components of the optical output above a predetermined level,
A temperature measurement device characterized in that the light intensity of the light source is modulated, and the output of the spectrometer is extracted by AC coupling and subjected to signal processing. (2) The temperature measuring device according to claim 1 of the utility model registration, characterized in that the light source is pulse-driven at a specific frequency as means for modulating the light intensity of the light source.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984157607U JPS6172653U (en) | 1984-10-17 | 1984-10-17 | |
| KR1019850003280A KR900005778B1 (en) | 1984-10-17 | 1985-05-14 | Temperature measuring device |
| CN85108209A CN85108209B (en) | 1984-10-17 | 1985-10-14 | Temperature measuring device |
| US06/787,592 US4669872A (en) | 1984-10-17 | 1985-10-15 | Temperature measuring device |
| EP85113173A EP0179400B1 (en) | 1984-10-17 | 1985-10-17 | Temperature measuring device |
| DE8585113173T DE3568871D1 (en) | 1984-10-17 | 1985-10-17 | Temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984157607U JPS6172653U (en) | 1984-10-17 | 1984-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6172653U true JPS6172653U (en) | 1986-05-17 |
Family
ID=30715594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984157607U Pending JPS6172653U (en) | 1984-10-17 | 1984-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6172653U (en) |
-
1984
- 1984-10-17 JP JP1984157607U patent/JPS6172653U/ja active Pending
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