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:
Aug. 31, 1976
Filed:
Feb. 14, 1975
Applicant:
Inventor:
Thomas G Chadbourne, Boston, MA (US);
Assignee:
Walker Magnetics Group, Inc., Worcester, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; H03F / ;
U.S. Cl.
CPC ...
324 / ; 324130 ; 330-9 ;
Abstract
The integrating fluxmeter disclosed herein employs a second electronic integrator which operates during the intervals between test periods to adjust a compensating bias current, applied to the main integrator, to a value accurately canceling any residual drift. The integrating capacitor employed in this second electronic integrating circuit is of sufficient size so that the value of the compensating current does not vary significantly during a test period.