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.

Date of Patent:
Jun. 17, 1980

Filed:

Mar. 02, 1979
Applicant:
Inventors:

Mark F Carlos, Hamilton Township, Mercer County, NJ (US);

Min-Chung Jon, East Windsor Township, Mercer County, NJ (US);

Vito Palazzo, East Windsor Township, Mercer County, NJ (US);

Assignee:

Western Electric Company, Inc., New York, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73587 ;
Abstract

The disclosure is directed to a technique for monitoring signals emanating from a ceramic article (10) during a soldering operation. In order to determine whether the signals are stress wave emissions (SWE's) or noise the number of pulses (41) of the monitored signal having an amplitude exceeding a preset threshold (51), during a period of time, are counted. A count (62) proportional to the area under the envelope of the detected signal during the period of time is also made. A ratio of the count related to the area under the envelope to the pulse count is formed and compared to an empirically developed range of ratios which are indicative of a stress wave emission signal.


Find Patent Forward Citations

Quick Actions:

Carlos, Mark. (1980). Method and apparatus for monitoring cracking using stress wave emission (U.S. Patent No. 4207771). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4207771

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…