Electric field whistle
US8049633B2 · kind B2 · utility
0Cited by
2References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 8, 2011 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Apr 8, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D45/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In one embodiment, an electric field sensor is provided including an elongated conductor; a circuit including an input and an output connected across the elongated conductor wherein said circuit includes a DC to AC signal converter; wherein said elongated conductor is operative to impose a DC signal on said circuit input in response to being exposed to an electric field and broadcast an AC signal converted from said DC signal in response to said electric field being greater than a threshold level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.