JPS5497469A - Laser speed measuring apparatus - Google Patents

Laser speed measuring apparatus

Info

Publication number
JPS5497469A
JPS5497469A JP455078A JP455078A JPS5497469A JP S5497469 A JPS5497469 A JP S5497469A JP 455078 A JP455078 A JP 455078A JP 455078 A JP455078 A JP 455078A JP S5497469 A JPS5497469 A JP S5497469A
Authority
JP
Japan
Prior art keywords
light
measured
specular reflection
convex lens
focus
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
JP455078A
Other languages
Japanese (ja)
Inventor
Makoto Kikuchi
Michio Oomichi
Kenji Shiroshita
Hiroshi Asano
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 Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP455078A priority Critical patent/JPS5497469A/en
Publication of JPS5497469A publication Critical patent/JPS5497469A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/50—Systems of measurement based on relative movement of target
    • G01S17/58—Velocity or trajectory determination systems; Sense-of-movement determination systems

Abstract

PURPOSE:To measure the speed of steel plate or the like having large line fluctuations at high precision, by receiving specular reflection scattered lights of reference light and specimen light radiated to the object being measured through a long- focus convex lens by way of the same lon-focus convex lens effectively. CONSTITUTION:Specular reflection component light S' of the scattered light of the specimen light S radiated on the object being measured 5 through a long-focus condenser convex lens 4 and specular reflection component light R' of the reference light R are passed into semi-transparent mirrors 12, 11 placed on the R side and S side of the optical path and a light receiving lens 6 to be led into a photo detector 7 by way of an aperture 10. By so constituting, the respective specular reflection components of the scattered light of the R light and S light reflected by the object being measured 5 may be effectively received, so that a signal of frequency excelling in signal-to-noise ratio S/N may be obtained at the output of the photo detector 7. Hence, the speed of steep plate or the like having large fluctuations of distance and angle in the line may be measured in non-contact state and at high precision.
JP455078A 1978-01-19 1978-01-19 Laser speed measuring apparatus Pending JPS5497469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP455078A JPS5497469A (en) 1978-01-19 1978-01-19 Laser speed measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP455078A JPS5497469A (en) 1978-01-19 1978-01-19 Laser speed measuring apparatus

Publications (1)

Publication Number Publication Date
JPS5497469A true JPS5497469A (en) 1979-08-01

Family

ID=11587150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP455078A Pending JPS5497469A (en) 1978-01-19 1978-01-19 Laser speed measuring apparatus

Country Status (1)

Country Link
JP (1) JPS5497469A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470696A (en) * 1981-10-14 1984-09-11 Systems Research Laboratories, Inc. Laser doppler velocimeter
US5726743A (en) * 1994-05-27 1998-03-10 Societe Nationale Industielle Et Aerospatiale Laser observation space instrument and a space vehicle including it

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470696A (en) * 1981-10-14 1984-09-11 Systems Research Laboratories, Inc. Laser doppler velocimeter
US5726743A (en) * 1994-05-27 1998-03-10 Societe Nationale Industielle Et Aerospatiale Laser observation space instrument and a space vehicle including it

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