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:
Mar. 15, 2005
Filed:
Sep. 20, 2002
Tomoshige Yamamoto, Tokyo, JP;
Tomoshige Yamamoto, Tokyo, JP;
Yamatake Corporation, Tokyo, JP;
Abstract
When a plane (PLN) which includes electrodes () and is perpendicular to the direction of an axis (PAX) of a measuring pipe () is defined as a boundary in the measuring pipe (), an exciting coil () applies asymmetrical magnetic fields to a fluid to be measured, which flows through the measuring pipe (), on both sides of the plane (PLN) serving as the boundary in the measuring pipe (). A signal conversion unit () obtains the phase difference between an exciting current supplied to the exciting coil () and an interelectrode electromotive force detected by the electrodes (). A flow rate output unit () calculates the flow rate of the fluid on the basis of the phase difference obtained by the signal conversion unit ().