JPH02150531U - - Google Patents
Info
- Publication number
- JPH02150531U JPH02150531U JP6078389U JP6078389U JPH02150531U JP H02150531 U JPH02150531 U JP H02150531U JP 6078389 U JP6078389 U JP 6078389U JP 6078389 U JP6078389 U JP 6078389U JP H02150531 U JPH02150531 U JP H02150531U
- Authority
- JP
- Japan
- Prior art keywords
- level
- amplifier
- meter
- optical sensor
- indicates
- 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 claims description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Description
第１図は本考案の一実施例の回路図である。
１……光センサー、２……増幅器、３……可変
減衰器、４……増幅器、５……オペアンプ、６…
…シユミツト回路、７……オペアンプ、８……メ
ーター、９……検出出力端子、１０……光検出レ
ベル表示回路。
FIG. 1 is a circuit diagram of an embodiment of the present invention. 1... Optical sensor, 2... Amplifier, 3... Variable attenuator, 4... Amplifier, 5... Operational amplifier, 6...
... Schmitt circuit, 7... operational amplifier, 8... meter, 9... detection output terminal, 10... light detection level display circuit.
Claims (1)
気信号を増幅する増幅器と、前記増幅器の出力レ
ベルをメータに指示する光検出レベル表示回路と
、前記メータの指示値をもとに前記電気信号のレ
ベルを減衰せしめる可変減衰器とを有することを
特徴とする光検出回路。 an optical sensor; an amplifier that amplifies the electrical signal converted by the optical sensor; a photodetection level display circuit that indicates the output level of the amplifier to a meter; and a level display circuit that indicates the level of the electrical signal based on the reading of the meter. A photodetection circuit characterized by having a variable attenuator for attenuating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6078389U JPH02150531U (en) | 1989-05-24 | 1989-05-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6078389U JPH02150531U (en) | 1989-05-24 | 1989-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02150531U true JPH02150531U (en) | 1990-12-26 |
Family
ID=31588448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6078389U Pending JPH02150531U (en) | 1989-05-24 | 1989-05-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02150531U (en) |
-
1989
- 1989-05-24 JP JP6078389U patent/JPH02150531U/ja active Pending
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