Study on a diode-bridge type capacitance detection circuit for differential capacitive sensor

Takahiro Matsuo, Joanna PawŁat, Jinxing Liang, Toshitsugu Ueda

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    Diode-bridge type capacitance detection circuit was developed in order to detect very small variation of differential capacitances in higher resolution. The circuit was designed for a comb structure tilt sensor, which was made of quartz crystal and had several movable electrodes between fixed electrodes. The circuit's output was almost proportional to the displacement of the movable electrode. Presently, the resolution of 0.0015 degree was obtained using the combination of the sensor and the detection circuit. It corresponded to the resolution of about less than 4.5aF.

    Original languageEnglish
    Pages (from-to)60-62
    Number of pages3
    JournalPrzeglad Elektrotechniczny
    Volume83
    Issue number6
    Publication statusPublished - 2007

    Fingerprint

    Capacitive sensors
    Diodes
    Capacitance
    Networks (circuits)
    Electrodes
    Sensors
    Quartz
    Crystals

    Keywords

    • Diode-bridge
    • Infinitesimal variation of capacitance
    • Tilt sensor

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

    Cite this

    Study on a diode-bridge type capacitance detection circuit for differential capacitive sensor. / Matsuo, Takahiro; PawŁat, Joanna; Liang, Jinxing; Ueda, Toshitsugu.

    In: Przeglad Elektrotechniczny, Vol. 83, No. 6, 2007, p. 60-62.

    Research output: Contribution to journalArticle

    Matsuo, T, PawŁat, J, Liang, J & Ueda, T 2007, 'Study on a diode-bridge type capacitance detection circuit for differential capacitive sensor', Przeglad Elektrotechniczny, vol. 83, no. 6, pp. 60-62.
    Matsuo, Takahiro ; PawŁat, Joanna ; Liang, Jinxing ; Ueda, Toshitsugu. / Study on a diode-bridge type capacitance detection circuit for differential capacitive sensor. In: Przeglad Elektrotechniczny. 2007 ; Vol. 83, No. 6. pp. 60-62.
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