Doppler type ultrasonic flowmeter, flow rate measuring method using doppler type ultrasonic flowmeter and flow rate measuring program used in this doppler type ultrasonic flowmeter
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United States of America Patent
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May 11, 2010
Grant Date -
Nov 3, 2005
app pub date -
Jun 3, 2003
filing date -
Jun 4, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A doppler ultrasonic flowmeter including: an ultrasonic transmission member for casting ultrasonic pulses onto the fluid within a fluid tube, which is to be measured, along a measurement line from an ultrasonic transducer, a flow-speed distribution measurement unit for receiving ultrasonic echoes reflected from the measurement region due to ultrasonic pulses cast onto the fluid to be measured so as to measure the flow-speed distribution of the fluid to be measured in the measurement region; a flow measurement unit for measuring the flow of the fluid to be measured; and a transducer position adjusting mechanism for adjusting the relative position of a pair of ultrasonic transducers serving as the ultrasonic transmission member, a first transducer and a second transducer, which are disposed away one from another along the axial direction of a fluid tube.
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