A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ELECTROSTATIC SENSOR AND DOOR HANDLE
An electrostatic sensor includes a detection electrode, a shield electrode provided in a periphery of the detection electrode, a first power supply coupled to the detection electrode and configured to generate an AC voltage having a first amplitude, a second power supply coupled to the shield electrode and configured to generate an AC voltage having a second amplitude, a measuring device configured to measure a quantity of charge flowing from the first power supply to the detection electrode, and a control device coupled to the measuring device. The AC voltages generated by the first and second power supplies have the same frequency and the same phase. The second amplitude is larger than the first amplitude. A detection target on a side of a detection surface is detected based on a change in an electrostatic capacitance between the detection electrode and the detection target.
ELECTROSTATIC SENSOR AND DOOR HANDLE
An electrostatic sensor includes a detection electrode, a shield electrode provided in a periphery of the detection electrode, a first power supply coupled to the detection electrode and configured to generate an AC voltage having a first amplitude, a second power supply coupled to the shield electrode and configured to generate an AC voltage having a second amplitude, a measuring device configured to measure a quantity of charge flowing from the first power supply to the detection electrode, and a control device coupled to the measuring device. The AC voltages generated by the first and second power supplies have the same frequency and the same phase. The second amplitude is larger than the first amplitude. A detection target on a side of a detection surface is detected based on a change in an electrostatic capacitance between the detection electrode and the detection target.
ELECTROSTATIC SENSOR AND DOOR HANDLE
FUJIYOSHI TATSUMI (author) / SASAKI TAKASHI (author) / YAMADA TOMOKI (author)
2020-07-16
Patent
Electronic Resource
English
IPC:
B60J
WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES
,
Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge
/
G01R
Messen elektrischer Größen
,
MEASURING ELECTRIC VARIABLES
/
E05B
LOCKS
,
Schlösser
/
G01V
Geophysik
,
GEOPHYSICS
/
H03K
PULSE TECHNIQUE
,
Impulstechnik
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