Procedure and apparatus for analyzing pulp slurry
US4911013A · kind A · utility
4Cited by
6References
9Claims
0Family size
Inventors
Key dates
| Filing date | Dec 28, 1988 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Dec 28, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N29/032
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A procedure for analyzing air content of a liquid, e.g. pulp slurry, wherein the ratio I.sub.att /I.sub.sc between ultrasound attenuation and scattered ultrasound attenuation and/or the logarithm log (I.sub.att /I.sub.sc) is determined. The respective measuring apparatus comprises an ultrasound transmitter (1) and an ultrasound receiver (2) and a scattered ultrasound receiver (3), the latter being disposed to measure members (4) for determining the ratio I.sub.att /I.sub.sc and/or the logarithm log (I.sub.att /I.sub.sc).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.