发明授权
- 专利标题： Sensor for measurement for wet and dry fingers
- 专利标题（中）： 用于湿手指和干手指的测量传感器
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申请号： US10497847申请日： 2002-12-06
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公开(公告)号： US07606398B2公开(公告)日： 2009-10-20
- 发明人: Jon Nysæther , Knut Riisnæs , Ørjan G. Martinsen , Geir Mostad , Nicolai W. Christie , Rune Pedersen
- 申请人： Jon Nysæther , Knut Riisnæs , Ingvild Juvkam Dyve, legal representative , Ørjan G. Martinsen , Geir Mostad , Nicolai W. Christie , Rune Pedersen
- 申请人地址： NO Fornebu
- 专利权人： IDEX ASA
- 当前专利权人： IDEX ASA
- 当前专利权人地址： NO Fornebu
- 代理机构： Rothwell, Figg, Ernst & Manbeck, P.C.
- 优先权： NO20016013 20011207; NO20022501 20020527
- 国际申请： PCT/NO02/00465 WO 20021206
- 国际公布： WO03/049011 WO 20030612
- 主分类号： G06K9/00
- IPC分类号： G06K9/00 ; G06K9/20
摘要：
A sensor device for performing measurements on an at least partially conductive surface includes a number of conductive structures at or directly below the sensor surface. The conductive structures consist of at least one stimulation or current sink electrode and a number of sensor elements coupled to interrogation electrodes in an electronic circuit for measuring impedance between the electrodes and the stimulation electrode. The sensor device also includes at least one additional clamping electrode positioned in the vicinity of the sensor elements and coupled to a chosen voltage.
公开/授权文献
- US20050069178A1 Sensor for measurement for wet and dry fingers 公开/授权日：2005-03-31
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