Magnetic field measuring apparatus
US8957677B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 28, 2010 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Jan 15, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A beam that passes through a plurality of gas cells a number of times is led to a deflection meter from a light ejecting section, detection of a deflected surface angle is performed and a strength of a magnetic field is measured by a structure in which the plurality of the gas cells is arranged along a light beam between two reflection units or light concentrating units that have a light beam incidence section and a light beam ejecting section and are opposite to each other, and a laser beam that is incident from the light beam incidence section passes through the plurality of the gas cells and then is multiply reflected by both reflection units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.