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:
Jun. 26, 2018
Filed:
Dec. 21, 2015
Austin Powder Company, Cleveland, OH (US);
Gimtong Teowee, Westlake Village, CA (US);
Bryan E. Papillon, Phoenixville, PA (US);
James D. Heckelman, Norwalk, OH (US);
Chris Munroe, Collins, OH (US);
Austin Star Detonator Company, Cleveland, OH (US);
Abstract
A method of calibrating a coefficient of a pressure sensor for blasting operations, including striking a first piezoelectric sensor of a first unmolded pressure sensing apparatus; determining, with an interface circuit, a first peak voltage of the first piezoelectric sensor during the striking thereof, striking a second piezoelectric sensor of a second molded pressure sensing apparatus; determining with the interface circuit, a second peak voltage of the second piezoelectric sensor during the striking thereof, and calculating a piezoelectric constant of the second piezoelectric from at least the first and second peak voltages.