JPH0158132U - - Google Patents

Info

Publication number
JPH0158132U
JPH0158132U JP15422487U JP15422487U JPH0158132U JP H0158132 U JPH0158132 U JP H0158132U JP 15422487 U JP15422487 U JP 15422487U JP 15422487 U JP15422487 U JP 15422487U JP H0158132 U JPH0158132 U JP H0158132U
Authority
JP
Japan
Prior art keywords
output
photodetector
circuit
slit
detects
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
Application number
JP15422487U
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP15422487U priority Critical patent/JPH0158132U/ja
Publication of JPH0158132U publication Critical patent/JPH0158132U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例を示す概念図、第2
図は第1図に示す処理回路のブロツク図、第3図
は従来例の一例を示す概念図、第4図はスリツト
による光の透過波形について示す波形図である。 1……フオトデイテクタ、2……回転スリツト
板、3……ピークデイラクタ回路、4……フオト
インタラプタ、5……ホールド回路、7……コン
パレータ、8……スレツシヨルドレベル発生回路
、9……出力タイミング発生回路、10……処理
回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. 被測定ビームを透過させるスリツトをもつ回転
    板と、前記スリツトを通つたビーム出力を検出す
    るフオトデイテクタと、前記フオトデイテクタ出
    力の最大値を検出するピークデイラクタ回路と、
    非スリツト部での前記フオトデイテクタ出力を保
    持するホールド回路と、前記ピークデイテクタ回
    路出力およびホールド回路の出力にもとづいてビ
    ーム径判定用スレツシヨルドレベルを生成するス
    レツシヨルドレベル発生回路と、前記スレツシヨ
    ルドレベルで前記フオトデイテクタ出力をデイジ
    タル化するコンパレータとを含むことを特徴とす
    る光ビーム径測定装置。
JP15422487U 1987-10-07 1987-10-07 Pending JPH0158132U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15422487U JPH0158132U (ja) 1987-10-07 1987-10-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15422487U JPH0158132U (ja) 1987-10-07 1987-10-07

Publications (1)

Publication Number Publication Date
JPH0158132U true JPH0158132U (ja) 1989-04-11

Family

ID=31430769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15422487U Pending JPH0158132U (ja) 1987-10-07 1987-10-07

Country Status (1)

Country Link
JP (1) JPH0158132U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02259475A (ja) * 1989-03-31 1990-10-22 Yokogawa Electric Corp 半値幅測定回路

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02259475A (ja) * 1989-03-31 1990-10-22 Yokogawa Electric Corp 半値幅測定回路

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