Capacitive void fraction measurement apparatus
US5017879A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1989 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Sep 15, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/226
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for use in the capacitive measurement of the void fraction in a flowing liquid. An assembly of at least two electrodes is spaced apart around the exterior of the body defining a flow passage such that the capacitance of the electrode assembly is a function of the dielectric constant of material within the passageway. The radial thickness of the body is substantial such that the passageway occupies a portion of the electrostatic field of the electrode assembly which is relatively uniform. The dielectric constant of the body may be substantially equal to the expected dielectric constant of the said liquid. The body may be tubular with the electrode assembly directly supported on the radially outer surface of the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.