Noninvasive method for determining the liquid level and density inside of a container
Disclosed is a noninvasive method for determining the liquid level and density inside of a container having arbitrary dimension and shape. By generating a flexural acoustic wave in the container shell and measuring the phase difference of the detected flexural wave from that of the originally generated wave a small distance from the generated wave, while moving the generation and detection means through the liquid/vapor interface, this interface can be detected. Both the wave generation and wave detection may be achieved by transducers on the surface of the container. A change in the phase difference over the outer surface of the vessel signifies that a liquid/vapor interface has been crossed, while the magnitude of the phase difference can be related to fluid density immediately opposite the measurement position on the surface of the vessel.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 20023242
- Resource Relation:
- Other Information: PBD: 25 Apr 2000
- Country of Publication:
- United States
- Language:
- English
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