Apparatus and method for monitoring of air ionization
US6259591A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2000 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Jun 8, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05F3/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The total of the ion current leaving electrodes of one polarity and the ion current flowing to those electrodes, is measured as the current in the ground return path of the corresponding generator. For a brand-new ionizer, the value of that total ion current for electrodes of each polarity under normal operating conditions will substantially be the maximum ion current the positive and negative electrodes are capable of generating. The changes in the current in the ground return path reflect changes in the ionizing efficiency of the electrodes caused among other factors, by contamination. The values of the currents may be scaled up or down to the arbitrary unit. Using this scaling allows to have a signal that is normalized regardless of the length of the ionizer and number of the ionizing electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.