Electrode assembly especially adapted to utilizing a magnetic field for measuring electric conductivity of treated non-polar liquids
US4691169A · kind A · utility
Inventor
Key dates
| Filing date | Jul 8, 1981 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Jul 8, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/1833
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A unique electrode assembly primarily designed to pass an induced current through a liquid phase by transfer of molecules adsorbed on sub-micron charged particles from cathode to anode to enable conductance determinations on non-polar liquids, for example, hydrocarbon oils that have been altered while in the molecular state to enable a degree of polarity. The novel electrode assembly comprises a cylinder within a cylinder configuration, the outer cylinder containing orifices equalizing area for largest electrode area within smallest liquid volume. A one millimeter gap enables increased more accurate, electrode component signal representations. A magnetic means is provided for nullifying electro-magnetic fields induced in electrode assemblies where the liquid is non-polar containing molecules oriented to conductive polar state by additives such as sub-micron particles and the induced field will cause polar disorientation with lowered conductivity. High gauss permanent magnets are placed so their field is through the electrodes axis and at a ninety degree angle with respect to the electrodes electro-magnetic field, thus maintaining the molecules additive induced polar conductivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.