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:
Dec. 10, 1985
Filed:
Apr. 16, 1984
Chuji Akiyama, Tokyo, JP;
Yokogawa Hokushin Electric Corporation, Tokyo, JP;
Abstract
An ultrasonic flowmeter comprising a signal generator for supplying a synchronizing signal to an ultrasonic propagation path and a frequency division time signal to a flow rate computing unit; the flow rate computing unit comprising a time difference detector for determining time difference between a reception time signal from the ultrasonic propagation path and the frequency division time signal from the signal generator, and for generating a signal indicative of which signal is earlier than the other; a sequential approximating means responsive to an output signal form the time difference detector for effecting sequential approximating computation; and a flow rate computing circuit responsive to the output from the sequential approximating means for computing the flow rate of the fluid. The ultrasonic flowmeter is simple, accurate and reliable, and is inexpensive to manufacture.