| 发明名称 |
METHOD AND APPARATUS FOR DETECTION AND MEASUREMENT OF ACCUMULATIONS OF MAGNETIC PARTICLES |
| 摘要 |
Apparatus for detection and measurement of agglutinations of magnetic particles employing Hall sensors (15, 16). A low frequency AC signal (24) is employed to excite or bias the Hall sensors which reside in a DC magnetic field (23). The particles are moved into operative relationship with the Hal l sensors in order to generate a signal representing the number of particles o n the substrate (22). The method for such detection and measurement is also pa rt of the invention.
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| 申请公布号 |
CA2438423(A1) |
申请公布日期 |
2002.08.29 |
| 申请号 |
CA20022438423 |
申请日期 |
2002.02.12 |
| 申请人 |
QUANTUM DESIGN, INC. |
发明人 |
SAGER, RONALD E.;DIEDERICHS, JOST H.;BLACK, RANDALL C.;JENSEN, KURT G.;SIMMONDS, MICHAEL B. |
| 分类号 |
G01N27/72;G01N27/74;G01N33/487;G01N33/543;G01R33/12;(IPC1-7):G01R33/12;G01N33/48 |
主分类号 |
G01N27/72 |
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