Method and system to measure gas flow
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.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-00OR22725
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Number(s):
- 11,815,376
- Application Number:
- 17/349,087
- OSTI ID:
- 2293860
- Resource Relation:
- Patent File Date: 06/16/2021
- Country of Publication:
- United States
- Language:
- English
Apparatus and method for fiscal measuring of an aerated fluid
|
patent | March 2008 |
Method and device for recording characteristic state, amount and composition of a flowing medium
|
patent | October 2010 |
Vortex shedding fluid velocity meter
|
patent | September 1989 |
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