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. 02, 2016
Filed:
Feb. 24, 2015
Yokogawa Electric Corporation, Musashino-shi, Tokyo, JP;
Hong Yan Zhang, Musashino, JP;
Toru Yan Shimura, Musashino, JP;
YOKOGAWA ELECTRIC CORPORATION, Tokyo, JP;
Abstract
An electromagnetic flow meter includes a converter including an excitation unit configured to generate and output an excitation signal and a flow rate signal receiving unit configured receive a flow rate signal, a flowtube including a coil connected to the excitation unit through an excitation cable and an electrode connected to the flow rate signal receiving unit through a signal cable, and a miswiring detection unit configured to enable the excitation unit to output an excitation signal of a first frequency and to calculate a first index value relating to the first frequency and a second index value relating to a second frequency from a flow rate signal acquired when the excitation signal of the first frequency is output. The miswiring detection unit determines that a miswiring occurs when the first index value is not large enough to satisfy a predetermined criterion than the second index value.