Reed relay for magnetic field measurement
US7710112B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2007 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Jul 9, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for measuring a strength of a magnetic field, including a switch including contacts configured to change position when a switching threshold is reached, wherein the switching threshold is reached by modifying an external magnetic field around the switch, and a coil wound around the switch, wherein the coil is used to modify the external magnetic field, wherein a first current is driven through the coil wound around the switch until a first switching threshold is obtained, wherein a second current is driven through the coil wound around the switch until a second switching threshold is obtained, and wherein a value of the first current when the first switching threshold is reached and a value of the second current when the second switching threshold is reached are used to determine the strength of the magnetic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.