A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CAPACITANCE SENSOR
To provide a capacitance sensor which suppresses interference between an antenna and sensor electrodes housed in a limited space, and which suppresses the decrease in antenna output and the changes in impedance and natural frequency.SOLUTION: There are provided a detection part having an electrode 40 made of a conductor, and a detecting part 50 for determining a change in capacitance of the detection part. The electrode 40 is placed in the vicinity of magnetic field generating means 10 where the direction along the electrode 40 is in coincidence with the direction of the axis of the magnetic pole. The shape of the electrode 40 is configured to have a slit in a non-conducting part that interferes with a current generated in the electrode 40 as a result of a magnetic field generated at the magnetic field generating means 10.SELECTED DRAWING: Figure 1
【課題】限られたスペースに収容されたアンテナとセンサ電極の干渉を抑え、アンテナの出力低下およびインピーダンスや固有周波数の変化を抑えた静電容量センサを提供する。【解決手段】導体からなる電極４０を備える検出部と、検出部の静電容量の変化を判定する検知部５０を有し、電極４０は、電極４０に沿った方向が磁極の軸の方向となる磁場発生手段１０の近傍に配置され、電極４０の形状は、磁場発生手段１０の磁場発生に伴い電極４０に生じる電流を妨げる非導体部のスリットを有した形状を有して構成する。【選択図】図１
CAPACITANCE SENSOR
To provide a capacitance sensor which suppresses interference between an antenna and sensor electrodes housed in a limited space, and which suppresses the decrease in antenna output and the changes in impedance and natural frequency.SOLUTION: There are provided a detection part having an electrode 40 made of a conductor, and a detecting part 50 for determining a change in capacitance of the detection part. The electrode 40 is placed in the vicinity of magnetic field generating means 10 where the direction along the electrode 40 is in coincidence with the direction of the axis of the magnetic pole. The shape of the electrode 40 is configured to have a slit in a non-conducting part that interferes with a current generated in the electrode 40 as a result of a magnetic field generated at the magnetic field generating means 10.SELECTED DRAWING: Figure 1
【課題】限られたスペースに収容されたアンテナとセンサ電極の干渉を抑え、アンテナの出力低下およびインピーダンスや固有周波数の変化を抑えた静電容量センサを提供する。【解決手段】導体からなる電極４０を備える検出部と、検出部の静電容量の変化を判定する検知部５０を有し、電極４０は、電極４０に沿った方向が磁極の軸の方向となる磁場発生手段１０の近傍に配置され、電極４０の形状は、磁場発生手段１０の磁場発生に伴い電極４０に生じる電流を妨げる非導体部のスリットを有した形状を有して構成する。【選択図】図１
CAPACITANCE SENSOR
静電容量センサ
ISHIGAKI TOMOHIKO (author) / ITO YOHEI (author) / HASEGAWA SHINJI (author) / KAWAI HIDEKI (author)
2021-07-15
Patent
Electronic Resource
Japanese
IPC:
E05B
LOCKS
,
Schlösser
/
B60J
WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES
,
Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge
/
B60R
Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen
,
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
/
H01H
Elektrische Schalter
,
ELECTRIC SWITCHES
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