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. 22, 1995
Filed:
Jun. 21, 1994
Toyofumi Tomita, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An electromagnetic flowmeter comprises a measurement tube through which a fluid flows the rate of flow of which is to be measured, a plurality of electrodes disposed on the inner wall of the measurement tube to face each other, excitation coils for applying a magnetic field to the inside of the measurement tube in a direction orthogonal to the axis of the tube, an excitation circuit for supplying the excitation coils with a rectangular excitation current in at least two excitation cycles, a flow-rate value calculating circuit for, when electromotive force is generated between the electrodes in each of the excitation cycles, extrapolating flow-rate signals based on the electromotive force generated during the excitation cycles to obtain a flow-rate value signal that would be obtained when the excitation cycles are made infinitely large, and a flow-rate value output circuit for outputting the flow-rate value signal obtained by the flow-rate value calculating circuit through extrapolation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile