Measurement of magnetic fields using a string fixed at both ends
US7176680B1 · kind B1 · utility
15Cited by
1References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 11, 2000 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | May 11, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/022
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for detecting magnetic fields in which a string (1) carries an alternating current. The displacement of the string from its unperturbated position due to a magnetic gradient across the string is detected by pick-up coils (L1, L2). The signals from the pick-up coils are demodulated using a signal derived from the alternating current to produce an output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.