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:
May. 22, 2018
Filed:
Dec. 07, 2016
Yokogawa Electric Corporation, Tokyo, JP;
Masakazu Saito, Musashino, JP;
Yuichi Kaneko, Musashino, JP;
Yokogawa Electric Corporation, Tokyo, JP;
Abstract
There is provided an electromagnetic flowmeter including a measurement tube through which fluid to be measured flows, a lining which covers an inner side of the measurement tube, electrodes which are respectively inserted into through-holes formed in the lining and which output a detection signal based on an electromotive force generated in the fluid, and a lining wear detection unit which measures a magnitude of a slurry noise included in the detection signal to detect wear of the lining. The electrodes are configured such that a portion in contact with the fluid in a state where the lining has no wear is coated with a porous insulating material. The lining wear detection unit detects the wear of the lining by comparing the magnitude of the measured slurry noise with the magnitude of the slurry noise in the state where the lining has no wear.