Optical displacement sensor

A device and method for accurately sensing the direction and magnitude of small displacements between two objects, independent of the distance between the objects, utilizing a monochromatic light source and a reflector to produce a light standing wave pattern and a transparent photosensitive detecto...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ISHIZUKA, KACHU, ALEXANDER, DAVID H, SATO, ROBERT N
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	A device and method for accurately sensing the direction and magnitude of small displacements between two objects, independent of the distance between the objects, utilizing a monochromatic light source and a reflector to produce a light standing wave pattern and a transparent photosensitive detector to detect the number of crests and/or nodes of the light standing wave pattern intercepted.