Sensor device, and sensor system and electronic device using the sensor device

A sensor device which detects a positional relationship between an first member and second member, includes a signal source generating an electrical signal, a first electrode receiving the electrical signal and storing an electrical charge at a first part on the first member, a second electrode indu...

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Bibliographische Detailangaben
Hauptverfasser:	FUNAKI HIDEYUKI, SUZUKI KAZUHIRO, OGATA MASAKO, ITAYA KAZUHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS BASIC ELECTRONIC CIRCUITRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS PULSE TECHNIQUE TARIFF METERING APPARATUS TELEPHONIC COMMUNICATION TESTING
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Beschreibung
Zusammenfassung:	A sensor device which detects a positional relationship between an first member and second member, includes a signal source generating an electrical signal, a first electrode receiving the electrical signal and storing an electrical charge at a first part on the first member, a second electrode inducing an electrical charge at the second part on the second member, a third electrode inducing an electrical charge at the third part on the second member, a fourth electrode inducing an electrical charge at the fourth part on the first member, a reference electrode disposed at a fifth part on the second member to be connected to a reference voltage point, a fifth electrode inducing an electrical charge at the sixth part on the first member, and a differential amplifier amplifying a voltage difference between the fourth electrode and the fifth electrode and outputting a difference signal.