2A2-R03 人工皮膚下への埋め込みを想定した水晶発振回路式液体濃度センサの開発

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  • 2A2-R03 Development of Liquid Concentration Sensor Using Crystal Oscillator Circuit Embedded in a Robotic Artificial Skin

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In this paper, we report the development of liquid concentration sensor using crystal oscillator circuit embedded in a robotic artificial skin. We optimized the shape of the sensing capacitor for sensing a small quantity of liquid locally. This sensor is composed of the sensing capacitor and quartz crystal resonator (QCR). The frequency of QCR changes by a liquid in contact with the artificial skin on the sensing capacitor. Because the frequency changes relate to the electrical characteristics (dielectric constant, conductivity) of the liquid, the sensor can measure the concentration of the liquid. This sensor is expected to be applied to a sensor embedded in the robotic artificial skin.

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