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:
Aug. 02, 1977
Filed:
Jul. 14, 1975
Applicant:
Inventor:
Walter C Leschek, Pittsburgh, PA (US);
Assignee:
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
1791 / ; 181140 ;
Abstract
A method of calibrating acoustic emission transducers. The sensitivity of a standard transducer is first determined utilizing a reciprocity calibration technique, and the standard transducer and the acoustic emission transducer are then connected to a bounded acoustic medium. Random acoustic white noise is transmitted into the acoustic medium thereby establishing a multi-mode reverberant sound field, and the output responses from the standard transducer and the acoustic emission transducer to the reverberant sound field are obtained and compared to determine the sensitivity of the acoustic emission transducer.