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:
Jul. 14, 2020
Filed:
Feb. 28, 2020
Azbil Corporation, Chiyoda-ku, JP;
Yoshio Yamazaki, Chiyoda-ku, JP;
AZBIL CORPORATION, Chiyoda-ku, JP;
Abstract
A thermal flowmeter includes a tube, a temperature measuring device disposed on the tube and detecting a first temperature of a fluid, a heating and temperature measuring device disposed on the tube and detecting a second temperature of the fluid, a controller causing the heating and temperature measuring device to generate heat, a power determining unit determining a power consumption of the heating and temperature measuring device, a flow rate obtaining unit converting the power consumption into a flow rate, a flow rate correcting unit correcting the flow rate, a memory unit storing a first zero-point power consumption, a zero-point power ratio calculating unit calculating a zero-point power ratio based on the first zero-point power consumption and a second zero-point power consumption, and a setting unit calculating a correction factor based on the zero-point power ratio and setting the correction factor in the flow rate correcting unit.