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:
Jan. 31, 1984
Filed:
Mar. 25, 1982
Clifford G Walker, Huntsville, AL (US);
Other;
Abstract
An accelerometer utilizes a laser source, a photoelastic waveguide, a plurality of optical beam paths and detectors for processing optical output energy from the laser along two or more paths for providing phase detection for measuring acceleration. An electronic signal processing section converts the optical signals to electrical signals and provides an output for indicating circuitry. Formed in a micro-optical/integrated optic format, the accelerometer can be packaged in a small volume which allows ready use in systems for guidance or navigation purposes. Light generated by the laser is divided into two or four beam paths. Beam energy is directed through the photo-elastic waveguides and are selectively recombined to set up interference conditions. Subjecting the waveguide to acceleration stress will cause a detectable phase difference to occur which is indicative of acceleration.