发明名称 |
ELEKTRISCHES RÜCKKOPPLUNGS-DETEKTIONSSYSTEM FÜR MEHRPUNKTSONDEN |
摘要 |
An electrical feedback detection system for detecting electrical contact between a multi-point probe and an electrically conducting material test sample surface. The electrical feedback detection system comprises an electrical detector unit connected to a multitude of electrodes in the multi-point probe, and optionally directly to the test sample surface. The detector unit provides an electrical signal to a multi-point testing apparatus, which can be used to determine if the multi-point probe is in electrical contact with the test sample surface. The detector unit comprises an electrical generator means for generating an electrical signal that is driven through a first multitude of electrodes of the multi-point probe, and a second multitude of switched impedance detection elements. The electrical potential across the impedance detection elements determines the electrical contact to the test sample surface. |
申请公布号 |
AT519119(T) |
申请公布日期 |
2011.08.15 |
申请号 |
AT20030704319T |
申请日期 |
2003.01.07 |
申请人 |
CAPRES A/S |
发明人 |
PETERSEN, CHRISTIAN;NIELSEN, PETER FOLMER |
分类号 |
G01R1/073;G01N27/04;G01Q60/30;G01R1/067 |
主分类号 |
G01R1/073 |
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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