Human Body Sensing Modules with Capacitive Sensor

This paper tells us things such as measurement, sensor, prototype sensor, compensation, specifications, shielded room, target performance, floating capacitance, dielectric, efficiency, amplification degree, instrument panel, shield drive circuit, electric field simulation, performance, block diagram, temperature, and sensing circuit. Inside this paper the reader can read explanation such as circuit, electric force, field, amplifier circuit, capacitance, human proximity, prototype sensor module, panel, proximity, printed circuit, temperature compensation circuit, lines, variable amplifier circuit, compensation circuit, sensors, characteristic, prototype, and range.

Many information related to capacitive sensor modules, force, sensor electrode, stray capacitance, conversion efficiency, offset circuit, instrument, sense, capacitive sensor module, shield, accuracy, module, voltage, distance, simulation, switch, electric field, and detection are presented in the paper. The following are taken from the paper:

Our company has been developing automotive capacitive sensor modules to sense human body proximity or contact. Our recent study aiming at increased accuracy achieved 2 fF or better capacitance sensing accuracy, making it possible to detect a human body 300 mm away, a distance longer than that possible with existing capacitive sensors. In addition, the sensor electrode structure used in a vehicle cabin was optimized to increase noise resistance and directivity. Furthermore, we made a prototype sensor module and assessed its sensitivity in the vehicle cabin, with the finding that the prototype module is able to sense a hand at a distance of 300 mm or more from the sensor electrode.

Giving more content, the paper contains information about sensor module, capacitive sensor, detecting, proximity capacitance, offset, floating capacitance, converting circuit, conversion, temperature compensation, sensing, amplifier, electrode, human sensing, field simulation, floating, drive circuit, capacitance sensing circuit, and sensor electrode structure.

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