Title:
誤りのない静電容量式測定値検知のための装置及び方法
Document Type and Number:
Japanese Patent JP5836960
Kind Code:
B2
Abstract:
A device and a method for the capacitive detection of an object which is preferably arranged behind a flat article that is transparent to electromagnetic radiation or a wall, including a sensor incorporating sensor electrodes for the detection of the object, preferably for the detection of relative movements between the sensor and the flat article or a finger, where a control circuit serves for the control of the sensor electrodes and for the evaluation of the output signals of the sensor, and, due to the fact that the sensor comprises at least one sensor electrode which is surrounded by at least one further electrode, the surrounding further electrode is connected to the sensor electrode by the control circuit in such a manner that, in the event of a change of the potential of the sensor electrode, the potential of the surrounding further electrode is regulated in the opposite sense to the sensor electrode in such a way that the sensor electrode remains at a pre-determined or pre-definable potential, such that there is produced a capacitive sensor which does not react to tilting or small changes in the spacing from the surface.
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Inventors:
Raime, Gerd
Application Number:
JP2012535668A
Publication Date:
December 24, 2015
Filing Date:
October 25, 2010
Export Citation:
Assignee:
Raime, Gerd
International Classes:
G01V3/08
Domestic Patent References:
| JP2000039479A | ||||
| JP2000065775A |
Foreign References:
| DE10131243C2 |
Attorney, Agent or Firm:
Kato Asamichi
Kiuchi Uchida
Mitsuru Aoki
Kiuchi Uchida
Mitsuru Aoki
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