JPS58119736U - Light amount measuring device - Google Patents
Light amount measuring deviceInfo
- Publication number
- JPS58119736U JPS58119736U JP1531382U JP1531382U JPS58119736U JP S58119736 U JPS58119736 U JP S58119736U JP 1531382 U JP1531382 U JP 1531382U JP 1531382 U JP1531382 U JP 1531382U JP S58119736 U JPS58119736 U JP S58119736U
- Authority
- JP
- Japan
- Prior art keywords
- light
- amount
- fiber
- transmits
- measuring device
- 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.)
- Granted
Links
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図ａはＰＮＰＮ負性抵抗素子と光パルス発生のため
の構成図、第１図すは同じくその光パルス発生器の入射
光量と光パルスくり返し周波数の関係図、第２図ａは本
考案光量測定装置の一実施例を示す構成図、第２図すは
同じその動作説明図、第３図は同じく本考案の他の実施
例を示す構成図である。
１・・・ＰＮＰＮ負性抵抗発光素子、２・・・被測定用
光ファイバ、３・・・測定用光ファイバ、４・・・補償
用光ファイバ、５・・・発光素子、６・・・受光素子、
７・・・周波数電圧変換回路、８・・・発光素子駆動回
路、９・・・増幅器。Figure 1a is a block diagram of a PNPN negative resistance element and optical pulse generation, Figure 1 is also a diagram of the relationship between the amount of incident light and the repetition frequency of the optical pulse generator, and Figure 2a is a diagram of the present invention. FIG. 2 is a diagram illustrating an embodiment of the light amount measuring device; FIG. 2 is a diagram illustrating its operation; and FIG. 3 is a diagram illustrating another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... PNPN negative resistance light emitting element, 2... Optical fiber for measurement, 3... Optical fiber for measurement, 4... Optical fiber for compensation, 5... Light emitting element, 6... Light receiving element,
7... Frequency voltage conversion circuit, 8... Light emitting element drive circuit, 9... Amplifier.
Claims (1)
伝送する補償用ファイバと前記２つのファイバの合算の
光量に対応して（り返し周波数が変化するＰＮＰＮ負性
抵抗型光パルス発生器と前記光パルス発生器から放射す
る光パルスを伝送する測定用光ファイバとを有し、発生
する光パルスのくり返し周波数が予め定めた一定値にな
るよう゛に前記補償用ファイバにより伝送する光量を制
御し前記補償用ファイバの伝送する光量を設定すること
によって未知の光量を測定するようにした光量測定装置
。A fiber under test that transmits an unknown amount of light, a compensation fiber that transmits a known amount of light, and a PNPN negative resistance optical pulse generator whose repetition frequency changes according to the total amount of light of the two fibers. and a measuring optical fiber that transmits the optical pulses emitted from the optical pulse generator, and controls the amount of light transmitted by the compensation fiber so that the repetition frequency of the generated optical pulses becomes a predetermined constant value. A light amount measuring device that measures an unknown amount of light by setting the amount of light transmitted by the compensation fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1531382U JPS58119736U (en) | 1982-02-08 | 1982-02-08 | Light amount measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1531382U JPS58119736U (en) | 1982-02-08 | 1982-02-08 | Light amount measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58119736U true JPS58119736U (en) | 1983-08-15 |
| JPH0219703Y2 JPH0219703Y2 (en) | 1990-05-30 |
Family
ID=30027752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1531382U Granted JPS58119736U (en) | 1982-02-08 | 1982-02-08 | Light amount measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58119736U (en) |
-
1982
- 1982-02-08 JP JP1531382U patent/JPS58119736U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0219703Y2 (en) | 1990-05-30 |
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