Apparatus and method for measuring the consistency of a pulp suspension
US4171916A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1977 |
| Grant date | Oct 23, 1979 |
| Priority date | — |
| Expiry date | Nov 18, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/343
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A consistency measuring apparatus and a method for determining fiber concentration of a pulp suspension, which utilizes a flow cell having a pair of parallel, light transparent side walls to allow the sample to be monitored to flow therethrough. A plane polarized beam of light is transmitted through the cell and received by a pair of detectors which have overlying plane polarized light analyzers, one having its axis of transmission crossed with and the other having its axis of transmission parallel to the plane of polarization of the transmitted light beam. The detectors provide electrical signals which are processed to give the consistency of the pulp suspension sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.