METHOD AND SYSTEM TO MEASURE GAS FLOW
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Dec 23, 2021
app pub date -
Jun 16, 2021
filing date -
Jun 16, 2021
priority date (Note) -
Published
status (Latency Note)
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Abstract
A system for measuring gas flow generally including a passive acoustic wave generator disposed in a gas flow stream to passively generate an audio signal through vortex shedding, a sound capturing instrument disposed outside the gas stream to produce an electrical signal representative of the acoustic signal, a temperature sensor to obtain temperature measurements indicative of the temperature of the gas flow stream and a control system for determining the gas flow, such as velocity or flow rate, as a function of the acquired acoustic and temperature measurements. The acoustic wave generator includes a corrugated flow channel whose geometric design is so tuned to generate an acoustic emission whose frequency signature varies as a function of the gas flow velocity. The control system may acquires time-domain acoustic data, and process that data to obtain a frequency-domain representation from which gas velocity or gas flow rate can be determined.
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