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

Takahiro Matsuo, Jinxing Liang, Joanna Pawlat, Toshitsugu Ueda

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    3 Citations (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. Over 100kHz AC voltage was supplied to obtain output signal sufficiently. In order to prevent decrease of the sensitivity, the diode-bridge part was composed of commercial PIN diodes, which had very low junction capacitance (less than 1pF), and was mounted in small ceramic package with the tilt sensor. At present, 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
    Title of host publicationProceedings of IEEE Sensors
    Pages1123-1126
    Number of pages4
    DOIs
    Publication statusPublished - 2006
    Event2006 5th IEEE Conference on Sensors - Daegu
    Duration: 2006 Oct 222006 Oct 25

    Other

    Other2006 5th IEEE Conference on Sensors
    CityDaegu
    Period06/10/2206/10/25

    Fingerprint

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

    ASJC Scopus subject areas

    • Engineering (miscellaneous)
    • Electrical and Electronic Engineering

    Cite this

    Matsuo, T., Liang, J., Pawlat, J., & Ueda, T. (2006). Study on a diode-bridge type capacitance detection circuit for differential capacitive sensor. In Proceedings of IEEE Sensors (pp. 1123-1126). [4178818] https://doi.org/10.1109/ICSENS.2007.355823

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

    Proceedings of IEEE Sensors. 2006. p. 1123-1126 4178818.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Matsuo, T, Liang, J, Pawlat, J & Ueda, T 2006, Study on a diode-bridge type capacitance detection circuit for differential capacitive sensor. in Proceedings of IEEE Sensors., 4178818, pp. 1123-1126, 2006 5th IEEE Conference on Sensors, Daegu, 06/10/22. https://doi.org/10.1109/ICSENS.2007.355823
    Matsuo T, Liang J, Pawlat J, Ueda T. Study on a diode-bridge type capacitance detection circuit for differential capacitive sensor. In Proceedings of IEEE Sensors. 2006. p. 1123-1126. 4178818 https://doi.org/10.1109/ICSENS.2007.355823
    Matsuo, Takahiro ; Liang, Jinxing ; Pawlat, Joanna ; Ueda, Toshitsugu. / Study on a diode-bridge type capacitance detection circuit for differential capacitive sensor. Proceedings of IEEE Sensors. 2006. pp. 1123-1126
    @inproceedings{50eee0768cea4e3a84dadb37fcd16741,
    title = "Study on a diode-bridge type capacitance detection circuit for differential capacitive sensor",
    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. Over 100kHz AC voltage was supplied to obtain output signal sufficiently. In order to prevent decrease of the sensitivity, the diode-bridge part was composed of commercial PIN diodes, which had very low junction capacitance (less than 1pF), and was mounted in small ceramic package with the tilt sensor. At present, 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.",
    author = "Takahiro Matsuo and Jinxing Liang and Joanna Pawlat and Toshitsugu Ueda",
    year = "2006",
    doi = "10.1109/ICSENS.2007.355823",
    language = "English",
    isbn = "1424403766",
    pages = "1123--1126",
    booktitle = "Proceedings of IEEE Sensors",

    }

    TY - GEN

    T1 - Study on a diode-bridge type capacitance detection circuit for differential capacitive sensor

    AU - Matsuo, Takahiro

    AU - Liang, Jinxing

    AU - Pawlat, Joanna

    AU - Ueda, Toshitsugu

    PY - 2006

    Y1 - 2006

    N2 - 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. Over 100kHz AC voltage was supplied to obtain output signal sufficiently. In order to prevent decrease of the sensitivity, the diode-bridge part was composed of commercial PIN diodes, which had very low junction capacitance (less than 1pF), and was mounted in small ceramic package with the tilt sensor. At present, 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.

    AB - 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. Over 100kHz AC voltage was supplied to obtain output signal sufficiently. In order to prevent decrease of the sensitivity, the diode-bridge part was composed of commercial PIN diodes, which had very low junction capacitance (less than 1pF), and was mounted in small ceramic package with the tilt sensor. At present, 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.

    UR - http://www.scopus.com/inward/record.url?scp=50149101342&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=50149101342&partnerID=8YFLogxK

    U2 - 10.1109/ICSENS.2007.355823

    DO - 10.1109/ICSENS.2007.355823

    M3 - Conference contribution

    SN - 1424403766

    SN - 9781424403769

    SP - 1123

    EP - 1126

    BT - Proceedings of IEEE Sensors

    ER -