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:
Apr. 26, 1977
Filed:
Oct. 06, 1975
Masayasu Watanabe, Yokohama, JA;
Hokushin Electric Works, Ltd., Tokyo, JA;
Abstract
A noise-compensating circuit for an electromagnetic flowmeter in which the fluid to be metered is conducted through a flow tube having a pair of diametrically-opposed electrodes mounted thereon, the fluid intercepting an electro-magnetic field whereby a voltage is induced in the fluid which is transferred to the electrodes to produce a flow signal that is a function of flow rate. Noise resulting from asymmetry in the magnetic field as well as noise arising from the signal leads is eliminated by means including a loop coil symmetrically disposed with respect to the transverse axis passing through the electrodes, the loop coil being so connected that the error current induced therein acts to cancel out the noise components in the flow signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile