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:
Nov. 12, 2019
Filed:
Feb. 26, 2018
Azbil Corporation, Tokyo, JP;
Osamu Momose, Tokyo, JP;
Azbil Corporation, Tokyo, JP;
Abstract
An electromagnetic flow meter comprises a magnetic excitation coil, first and second electrodes which are disposed opposite to each other on an outer peripheral surface of a measurement tube, an amplifying circuit that amplifies an electromotive force generated between the first electrode and the second electrode, a flow rate calculation portion that calculates a flow rate of the fluid, a third electrode formed on the outer peripheral surface of the measurement tube separated from the first electrode and the second electrode, a fourth electrode which is in contact with the fluid, a resistor in which one end is connected to the third electrode, a voltage detecting portion that measures voltages of a signal generated in the third electrode by inputting an AC signal to the other end of the resistor, and an electrical conductivity calculating portion that calculates electrical conductivity of the fluid.