The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 1983
Filed:
Apr. 02, 1982
Applicant:
Inventor:
Clifford G Walker, Huntsville, AL (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
G01P / ;
U.S. Cl.
CPC ...
7351 / ; 7386238 ; 7351 / ;
Abstract
A laser accelerometer produces an output, phase modulated beam which is polarized in a direction perpendicular to the direction from which acceleration forces are applied. In the accelerometer a laser beam is directed through a resonant cavity toward a detector. A proof mass disposed adjacent the cavity, stresses the cavity in response to acceleration force. Acceleration detunes the cavity. Detected changes in the cavity output results in a feedback voltage change being coupled to the cavity and to an output detector. This change in voltage to restore cavity resonance is proportional to the input acceleration.