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:
Sep. 11, 2018
Filed:
May. 11, 2017
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Todd Bubar, Hollis, NH (US);
Andrew L. Tsang, Lowell, MA (US);
Burt Sacherski, Nashua, NH (US);
Steven Robert Tambeau, Marlborough, MA (US);
Arvind Ananthanarayanan, Medford, MA (US);
James Edward Dogul, Hudson, NH (US);
Timothy P. Wolfe, Somerville, MA (US);
ROCKWELL AUTOMATION TECHNOLOGIES, INC., Mayfield Heights, OH (US);
Abstract
An apparatus for an imbalance test includes a strain measurement module that measures a strain voltage across terminals of a strain gauge. The strain voltage is representative of an amount of force on the strain gauge. The apparatus includes a test measurement module that measures a test voltage across the terminals of the strain gauge while a test resistor is connected in parallel with a resistor of the strain gauge. The test resistor is connected while the test measurement module measures the test voltage and is disconnected while the strain module measures strain voltage. The apparatus includes an average module that calculates an average strain voltage from two strain voltage measurements. The strain voltages are measured preceding and after the test voltage measurement. The apparatus includes a difference module that determines a difference voltage. The difference voltage is a difference between the average strain voltage and the test voltage.