Electrical field sensing and transmitting apparatus
US4025913A · kind A · utility
1Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1975 |
| Grant date | May 24, 1977 |
| Priority date | — |
| Expiry date | Dec 22, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01W1/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pair of conductive spherical shells are carried by a balloon or other means into an electrical field which induces equal and opposite charges on the shells. Rotation of the shells causes the charges to alternate. The alternating sinusoidal charge is applied to an amplifier and the amplified output modulated and applied to a transmitter. The spherical shells become a telemetry antenna for transmitting the sensed electrical field information to a remote receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.