Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Yokogawa Electric Corp
Original Assignee
Yokogawa Electric Corp
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Filing date
Publication date
Application filed by Yokogawa Electric CorpfiledCriticalYokogawa Electric Corp
Priority to JP57150476ApriorityCriticalpatent/JPS5946511A/ja
Publication of JPS5946511ApublicationCriticalpatent/JPS5946511A/ja
Publication of JPH0339247B2publicationCriticalpatent/JPH0339247B2/ja
G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters