Apparatus for method to test efficiency of air ionizers and method for determining ability of an air ionizer to sustain a potential difference between an isolated object and a reference potential
US4774472A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1986 |
| Grant date | Sep 27, 1988 |
| Priority date | — |
| Expiry date | Mar 24, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/62
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for determining ion flow imbalance. High-magnitude positive and negative potential sources, each having a high-magnitude potential output terminal, are provided. Two electrodes are adapted for positioning adjacent the location of ions, the electrodes having areas for exposure to the ions. A supply of operating potential is provided for the high-magnitude potential sources. The operating potential supply is switched to supply operating potential alternately between the high-magnitude potential sources. Neutral terminals are provided on each of the high-magnitude potential sources and the current flows from the neutral terminals of the high-magnitude potential sources to reference potential are sensed to determine the current flows to the electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.