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:
Jun. 19, 1990
Filed:
Feb. 27, 1989
Kohji Tanimoto, Amagasaki, JP;
Mikio Bessho, Amagasaki, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A temperature sensing type flow sensor including a control pulse generating circuit for generating a pulse signal having a time ratio which corresponds to the output from a bridge circuit which contains temperature sensing elements, an intermittent control circuit for controlling a time in which an current is conducted in accordance with the time ratio, and a smoothing circuit for making an noncontinuous output from the intermittent control circuit continuous as supplied to the bridge circuit. The responsiveness of this temperature sensing type flow sensor is improved, and the change of the temperature sensing type elements due to time elapse and power source loss can be reduced. Furthermore, a switching control type temperature sensing flow sensor exhibits the most suitable frequency response throughout a significantly wide frequency region.