Ultrasonic flow sensor with repeated transmissions

Details Ultrasonic flow sensor with repeated transmissions Ultrasonic flow sensor with repeated transmissions

2007-10-07

2009-08-04

Thompson, Jewel (Department: 2855)

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

Reexamination Certificate

active

07568398

ABSTRACT:
A transit-time flow sensor determines a rate at which fluid flows by measuring a propagation time difference between upstream and downstream acoustic transmissions. This may involve providing an acoustic path consisting of sequentially traversed path segments and a repeating arrangement that uses the energy in a received pulse to repeat the pulse in the next sequential segment.

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PCT: International Search Report and ISA Written Opinion in corresponding PCT application PCT/US2008/078681, mailed Mar. 25, 2009.

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