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. 28, 1999
Filed:
Mar. 20, 1998
Applicant:
Inventors:
Marvin B Klein, Pacific Palisades, CA (US);
Gerald D Bacher, Santa Ana, CA (US);
Assignee:
Lasson Technologies, Inc., Culver City, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
356 285 ; 356356 ; 73597 ; 73601 ;
Abstract
Single-beam laser apparatus for measuring surface velocity at acoustic frequencies and surface displacement at ultrasonic frequencies includes a source laser and optics for directing a single laser beam at normal incidence to a surface. A photo EMF detector and optics are provided for directing surface reflected laser beam at the photo EMF detector in order to provide outputs therefrom which are directly proportional to all three orthogonal components surface velocity or displacement.