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:
Nov. 07, 2000
Filed:
Oct. 03, 1994
Robert Alan Thompson, New York, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
An apparatus and method are provided for calibrating a densitometer based sensor for measuring the linear density of the shot particles passing through a shot peening system to ensure that mass flow rate readings and shot velocity readings calculated therefrom are accurate. The apparatus comprises a probe having a plurality of randomly distributed particles configured to have a linear density substantially equal to the linear density of shot which the sensor should experience during operation of the shot peening system at desired parameters. The method comprises recording a sensor reading of the particles of the probe with the probe inserted in the sensor, removing the probe, dividing the known linear particle density of the probe by the sensor output to obtain the sensor calibration constant and multiplying each subsequent sensor output taken during normal operation of the shot peening system by the calibration constant to obtain an accurate instantaneous linear density reading of the shot traveling through the shot peening system.