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    Capacitive sensors and systems




    Paint Scope
    Thickness of paint and varnish


    Turbines Control
    Capacitive Blade Tip clearance & Tip Timing Measurement System



    Thickness Meter MCU
    ESC U Shaped Micrometer

    HLS
    Hydrostatic Levelling System

    WPS
    Alignment


    TIMS/TOMS
    Inclinometers




    CAPACITANCE-BASED TECHNOLOGY FOR DIMENSIONAL METROLOGY

    Main advantages
    -
    Non-contact
    - Rapidity

    - Accuracy
    - Very high resolution
    - Any type of electrically conductive target (universal calibration)
    -
    Good resistance to extreme conditions (temperature, radiation, magnetic fields, cryogeny)
    - Special solutions
    - Standard solutions

    - Low cost solutions


    Any type of electrical conductive target (universal calibration)
    Good resistance to extreme conditions (temperature, radiation, magnetic fields, cryogeny)

    SPECIAL SOLUTIONS
    STANDARDS SOLUTIONS
    LOW COST SOLUTIONS

    Measurement principle
    The sensor electrode and the targeted object make up a condensator the inverse capacitance of which is measured.
    Thus, according to the used sensor, the electronics provides an output voltage proportional to displacement the potential of the target object is taken as reference.


    Capacitance is defined as follows:

    C = electrical capacitance
    E = vacuum dielectric constant
    Er = medium dielectric constant
    S = electrode surface
    d = electrode to electrode distance

    Several possibilities for the sensor design: metal / resin technology, different shapes, serigraphy etc.

    Applications exemple