发明名称 |
Methods and apparatus for magnetic article detection |
摘要 |
<p>Apparatus and methods for detecting passing magnetic articles using a first, True Power On State (TPOS) detector during a first time interval and transitioning to a second, running mode detector after the first time interval, when the output of the second detector is accurate. A phase comparator is responsive to the output signal of the first and second detectors and provides a control signal indicative of a change in the phase relationship between the two output signals. An output switch controlled by the phase comparator provides, as the detector output signal, the first detector output signal during the first time interval and the second detector output signal thereafter.</p> |
申请公布号 |
EP2345874(B1) |
申请公布日期 |
2013.11.20 |
申请号 |
EP20110160892 |
申请日期 |
2006.10.16 |
申请人 |
ALLEGRO MICROSYSTEMS, LLC |
发明人 |
VOISINE, CORY;FERNANDEZ, DEVON;SCHELLER, KARL;VIG, RAVI;DOOGUE, KIRSTEN |
分类号 |
G01D5/247;G01B7/14;G01P3/481;G01P3/487;G01R33/06 |
主分类号 |
G01D5/247 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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