Ultrasonic flowmeter combined with a pressure sensor
A flow-meter for sensing mass flow rate employs transducers 4, 5 for determining, from the time difference between the time of flight of ultrasonic signal upstream and downstream of a flow path, the velocity of flow and acoustic velocity, and a pressure sensor 6 for sensing pressure in the flow path...
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| Sprache: | eng |
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| Zusammenfassung: | A flow-meter for sensing mass flow rate employs transducers 4, 5 for determining, from the time difference between the time of flight of ultrasonic signal upstream and downstream of a flow path, the velocity of flow and acoustic velocity, and a pressure sensor 6 for sensing pressure in the flow path, the pressure being related to the density. From these measurements the mass flow rate may be obtained. Both measurements of time difference and of pressure may be made in terms of frequency, enabling interfacing with digital electronics. The flow-meter may be used as a domestic gas meter. |
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