Method and apparatus for making measurements of accumulations of magnetically susceptible particles combined with analytes
US6927570B2 · kind B2 · utility
97Cited by
4References
1Claims
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Key dates
| Filing date | Jul 22, 2003 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Jul 22, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/96
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus is provided for quantitatively measuring samples whose amount or other characteristic quality is to be determined. The samples are arranged in a predefined pattern and are excited in a magnetic field. The magnetizations of the magnetic particles are thereby caused to oscillate at the excitation frequency in the manner of a dipole to create their own fields. These fields are inductively coupled to at least one substantially flat sensor such as sensing coils fabricated in a gradiometer configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.