Voltmeter for remotely sensing high voltages
US4594546A · kind A · utility
4Cited by
6References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 12, 1984 |
| Grant date | Jun 10, 1986 |
| Priority date | — |
| Expiry date | Mar 12, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A passive voltmeter that measures pulses of high voltage by periodically charging a condensor through a spark gap. The frequency at which the spark gap breaks down is a function of the voltage being measured and is detected and displayed in volts. Radioactive material within the chamber is used to insure a constant breakdown voltage by supplying the necessary free electrons. This insures constant breakdown time for the arc with minimum jitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.