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PRECISE TILTMETER AND INCLINOMETER BASED ON COMMERCIAL FORCE COMPENSATION WEIGH CELLS

M. Kühnel, M. Rivero, C. Diethold, F. Hilbrunner, T. Fröhlich
  • Abstract:
    High precision measurements and monitoring of tilt or inclination are essential in the field of ultraprecise force and mass measurements. We present a new concept for high resolving tilt / inclination measurements. Therefore a commercial electromagnetic force compensation (EMC) weigh cell is mounted in a hanging position and loaded with a defined weight. Thus the system conforms to a pendulum. By measuring the tilt depended deflection of the pendulum with the position sensor of the weigh cell we achieved a standard deviation of 7.1 nrad (3.4 nrad filtered) within a sampling time of 15 min. In future investigations we will compensate the deflection and take the compensation force as a measure for the tilt.
  • Keywords:
    tiltmeter, inclinometer, electromagnetic force compensation
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  • DOI:
    _unreg_tc3-2014.010

Event details:

  • IMEKO TC:
    TC3
  • Event name:
    TC3 Conference 2014
  • Title:

    22nd Conference on the Measurement of Force, Mass and Torque (together with 3rd TC22 Conference on Vibration Measurement and 12th TC5 Conference on the Measurement of Hardness)

  • Place:
    Cape Town, SOUTH AFRICA
  • Time:
    03 February 2014 - 06 February 2014