Sensor and Sensing Method Using Multiple Spiral Coil

A sensor according to an embodiment of the present technology can comprise a detection part including a multiple spiral coil, a first detection part electrically connected to the detection part in a first operation mode to detect whether an object approaches based on an oscillation frequency accordi...

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Bibliographische Detailangaben
Hauptverfasser: YANG MIN SUNG, WON CHANG SU, LEE SANG CHUEL
Format: Patent
Sprache:eng ; kor
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Beschreibung
Zusammenfassung:A sensor according to an embodiment of the present technology can comprise a detection part including a multiple spiral coil, a first detection part electrically connected to the detection part in a first operation mode to detect whether an object approaches based on an oscillation frequency according to a change in inductance, a second detection part electrically connected to the detection part in a second operation mode to detect a capacitance value when the first detection part detects that the object approaches, and a determination part for determining the type of the approaching object based on the oscillation frequency and the capacitance value. It is possible to detect the object accurately. 본 기술의 일 실시예에 의한 센서는 다중 나선형 코일을 포함하는 검출부, 제 1 동작 모드에서 검출부와 전기적으로 접속되어 인덕턴스 변화에 따른 발진 주파수에 기초하여 임의의 물체가 접근하였는지 감지하는 제 1 감지부, 제 1 감지부에서 임의의 물체가 접근한 것으로 감지되면 제 2 동작 모드에서 검출부와 전기적으로 접속되어 정전용량값을 검출하는 제 2 감지부 및 발진 주파수 및 정전용량값에 기초하여 접근한 물체의 종류를 판단하는 판단부를 포함하도록 구성될 수 있다.