Metal detecting device with magnetically influenced Hall effect sensor
US4066962A · kind A · utility
26Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1976 |
| Grant date | Jan 3, 1978 |
| Priority date | — |
| Expiry date | Dec 8, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/07
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A solid state Hall effect sensor is disposed between two magnets having their fields in quadrature with flux from the magnets at least partially cancelling in the Hall element to thereby enable a ferrous element relatively movable with respect to the magnets and sensor to control the output of the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.