Ultrasonic densitometer for liquid slurries
US4522068A · kind A · utility
49Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1983 |
| Grant date | Jun 11, 1985 |
| Priority date | — |
| Expiry date | Nov 21, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/0422
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus employing ultrasonic pulse production at a transmit transducer at a known frequency is received at a receive transducer for sampling a liquid slurry of known composition, but unknown ratio, makeup of liquid, gas and fine, suspended particles. The transmission time is converted to digital form and an adjustable velocity-density slope factor is applied from empirical data to result in a readout voltage that directly relates to the density of the liquid slurry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.