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.

Date of Patent:
Nov. 20, 2001

Filed:

Sep. 14, 1999
Applicant:
Inventors:

Naruki Suetake, Tokyo, JP;

Minoru Abe, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F 1/68 ;
U.S. Cl.
CPC ...
G01F 1/68 ;
Abstract

A heat sensitive flow meter comprising a power source for changing an offset voltage &Dgr;E at the time of application of a power voltage. The power source is connected to the non-inversion input terminal of an operation amplifier for amplifying a potential difference between a first heat sensitive element for measuring the temperature of a fluid and a second heat sensitive element which is cooled by the fluid. The heat sensitive flow meter can suppress an output error right after the application of a power voltage and shorten a target signal reach time.


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