Charge plate monitor and operating method thereof
US10564190B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2016 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Sep 13, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T23/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a charge plate monitor for eliminating a stray capacitor in a relay switch by using a voltage feedback method, and an operation method thereof. The charge plate monitor includes: a measurement plate unit including a conductive plate, a ground surface, and an insulator provided between the conductive plate and the ground surface; a noncontact electrometer provided between the conductive plate and the ground surface of the measurement plate unit and detecting an electrical potential of the conductive plate; a measurement unit reading or passing the electrical potential of the conductive plate detected by the noncontact electrometer; and a voltage feedback circuit unit that feeds the electrical potential of the conductive plate passed by the measurement unit back, and applying the electrical potential to a terminal of a relay switch terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.