Noise cancellation method in a biomagnetic measurement system using an extrapolated reference measurement
US5187436A · kind A · utility
10Cited by
1References
4Claims
0Family size
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Key dates
| Filing date | Mar 13, 1992 |
| Grant date | Feb 16, 1993 |
| Priority date | — |
| Expiry date | Mar 13, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/022
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for noiseless measurement of a biomagnetic field uses magnetic field magnitude and gradient measurement at a reference point together with mathematical extrapolation techniques to provide an effectively infinite order gradiometer response from a lower order physical gradiometer. Such a system has the advantages of potentially lower cost, higher accuracy, and easier adjustment and balancing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.