Title:
DEVICE TO MEASURE DEFORMATION QUANTITY OR DISPLACEMENT QUANTITY
Document Type and Number:
Japanese Patent JPS51135560
Kind Code:
A
Abstract:
PURPOSE: Obtain deformation quantities or displacement quantities accurately non-contact by making images of the object and reference scale by an optical system which arranges a pinhole at the focal position of a convex lens and by converting these images into electrical signals by a photoelectric converter to compare with reference patterns.
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Inventors:
TAKANO HIDEAKI
OONO MASANORI
OONO MASANORI
Application Number:
JP5999075A
Publication Date:
November 24, 1976
Filing Date:
May 20, 1975
Export Citation:
Assignee:
YOKOGAWA ELECTRIC WORKS LTD
International Classes:
G01D5/26; G01B11/00; G01B11/16; (IPC1-7): G01B11/00