Method and apparatus for fluid mixture monitoring, constituent analysis, and composition control
US5060507A · kind A · utility
51Cited by
14References
39Claims
0Family size
Inventors
Key dates
| Filing date | Jun 21, 1989 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | Jun 21, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/02881
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for fluid mixture monitoring and controlling using an acoustic sensing technique by pulsing a fluid sample and a reference fluid in elongated chambers with sound waves generated at one end of the chambers and sensing the resonant frequencies in the chambers, or the time lapse for the sound waves to traverse the chambers, with transducers disposed proximate the other ends of the chambers and ratiometrically comparing the time-based measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.