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:
Jan. 22, 2013
Filed:
Jul. 02, 2009
Richard W. Walker, Alpine, UT (US);
Richard W. Walker, Alpine, UT (US);
Fluke Corporation, Everett, WA (US);
Abstract
One or more embodiments are directed to a resistance bridge measurement circuit configured to perform an internal self-check. The resistance bridge measurement circuit may include two or more internal resistors. In one embodiment, the resistance bridge measurement circuit may be configured to measure a first voltage across one of the resistors and a second voltage across a combination of the two resistors. The measured voltages may be converted to a resistance ratio and compared to an expected value. In another embodiment, the resistance bridge measurement circuit may be configured to measure a third voltage across the other of the two resistors and a fourth voltage across a combination of the two resistors. The measured voltages may be converted to corresponding resistance ratios, summed and compared to an expected value.