PROGRESS OF THE TU ILMENAU DUAL AXIS TILTMETER WITH NANORAD RESOLUTION

M. Kühnel, C. Diethold, T. Fröhlich
Abstract:
The progress of our tiltmeter, which bases on force compensating weigh cells (EMFC) is discussed in this paper. Currently a resolution of ~ 1 nrad at a range of ± 9 mrad, a linearity of < 0.25 · 10-3 and a cross error of the axes of < ± 22 ppm is achieved. Long term measurements of earth tide related tilts demonstrate the ability to resolve tilts with very small frequencies (1 – 2 d-1).
Prospectively it will be applied to measure and control tilting of measurement basements and tables.
Keywords:
tiltmeter, inclinometer, electromagnetic force compensation, nanorad
Download:
IMEKO-WC-2015-TC3-056.pdf
DOI:
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Event details
Event name:
XXI IMEKO World Congress
Title:

Measurement in Research and Industry

Place:
Prague, CZECH REPUBLIC
Time:
30 August 2015 - 04 September 2015
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