SIGNAL PROCESSING DEVICE OF ULTRASONIC FLOWMETER

PROBLEM TO BE SOLVED: To obtain data with a constant amplitude even for rapidly changing signals. SOLUTION: Two different data of ultrasonic beam, propagating through a fluid flowing in a pipe line alternatively from upstream or downstream side, are stored in a memory 11. A value is obtained which i...

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Bibliographic Details
Main Authors SUGI TOKIO, SASAKI TADAO
Format Patent
LanguageEnglish
Published 21.05.2009
Subjects
MEASURING
MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL
METERING BY VOLUME
PHYSICS
TESTING
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Summary:PROBLEM TO BE SOLVED: To obtain data with a constant amplitude even for rapidly changing signals. SOLUTION: Two different data of ultrasonic beam, propagating through a fluid flowing in a pipe line alternatively from upstream or downstream side, are stored in a memory 11. A value is obtained which indicates a feature of each data such as a value corresponding to an inverse number of a peak value of amplitude to multiply data read from the memory 11, and a difference is obtained to calculate a propagation time difference and to compute a flow rate. COPYRIGHT: (C)2009,JPO&INPIT
Bibliography:Application Number: JP20070281424