Method and device for on-line acoustic monitoring of foam and aerated fluid properties
US7769549B2 · kind B2 · utility
0Cited by
6References
10Claims
0Family size
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Key dates
| Filing date | Dec 20, 2007 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | May 26, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/102
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for on-line acoustic detection of the quality of foams and aerated fluids whereby at least one emitter/receiver pair is placed in a close vicinity to the foam flow. At least one acoustic pulse is emitted and the time within which the acoustic pulse travels from the emitter to the receiver is recorded. Sound speed in the foam is determined by analyzing an acoustic response of the receiver and a pressure in the foam is also measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.