JPS57134983A - Pulse laser generator - Google Patents

Pulse laser generator

Info

Publication number
JPS57134983A
JPS57134983A JP56019947A JP1994781A JPS57134983A JP S57134983 A JPS57134983 A JP S57134983A JP 56019947 A JP56019947 A JP 56019947A JP 1994781 A JP1994781 A JP 1994781A JP S57134983 A JPS57134983 A JP S57134983A
Authority
JP
Japan
Prior art keywords
pulse
revolving
signal
revolving body
light stimulation
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
JP56019947A
Other languages
Japanese (ja)
Inventor
Masashi Oya
Hikotaro Itani
Hiroaki Shimazutsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP56019947A priority Critical patent/JPS57134983A/en
Publication of JPS57134983A publication Critical patent/JPS57134983A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G01H9/002—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means for representing acoustic field distribution

Abstract

PURPOSE:To take a photograph of vibrating mode of a revolving body at highly accurate timing by a light stimulation signal generator operating at pulse in correspondence with a pulse generator and a revolving body under test, and a Q- switch trigger signal generator. CONSTITUTION:A revolving pulse signal 16 itself is used as a Q-switch signal 22. The revolving angle and position of a revolving body 1 is made constant at the time of laser emission twice by a laser oscillator 13, even if the revolving body 1 varies in revolving speed. The holography can be photographed without discrepancy. The optimum time for light stimulation of the laser oscillator 13 is subtracted from the revolving period of the revolving body 1. And, a setting circuit 11 is set by obtaining the counting number from the oscillating frequency of a pulse oscillator 6. The pulse number of a counting signal 18 is counted with a counter 9 by turning a control circuit 8 ON. An equal signal 19 is output when the counting number set comes. A pulse stretcher 12 outputs a light stimulation signal 20.
JP56019947A 1981-02-13 1981-02-13 Pulse laser generator Pending JPS57134983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56019947A JPS57134983A (en) 1981-02-13 1981-02-13 Pulse laser generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56019947A JPS57134983A (en) 1981-02-13 1981-02-13 Pulse laser generator

Publications (1)

Publication Number Publication Date
JPS57134983A true JPS57134983A (en) 1982-08-20

Family

ID=12013391

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56019947A Pending JPS57134983A (en) 1981-02-13 1981-02-13 Pulse laser generator

Country Status (1)

Country Link
JP (1) JPS57134983A (en)

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