Research/Patents/US 5159406
US 5159406

LIGHT-OPERATED ACCELEROMETER-TYPE TECHNIQUES

Assignee

ZENITH ELECTRONICS CORP

Filed

Sep 28, 1964

Granted

Oct 27, 1992

Location

PATENT DEPT., ROLAND NORRIS, 1000 MILWAUKEE AVE., GLENVIEW ILLINOIS 60025

Abstract

A laser based accelerometer system uses small motion induced shifts in frequency to measure the motion of an object without contact thereof. This technique is particularly useful for determining the vibratory and velocity characteristics of objects that are otherwise inaccessible for direct motion measurement by contact sensors.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 12, 1982

Rescinded

Apr 15, 1992

Duration

10 years, 1 month

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records