REAL-TIME DYNAMIC ERROR COMPENSATION OF ACCELEROMETERS BY DIGITAL FILTERING
Clemens Elster, Sascha Eichstädt, Alfred Link, Thomas Bruns
Abstract:
The output signal of an accelerometer typically contains dynamic errors when a broadband acceleration is applied. In order to retrieve the applied acceleration, post-processing of the accelerometer's output signal is required. To this end, we propose the application of a digital filter. We describe the construction of an appropriate filter and consider the uncertainty associated with the filtered output signal. Explicit formulae can be employed to calculate both, the filtered output signal and its associated uncertainty, in real-time. We illustrate the need and benefit of the proposed approach in terms of an example.
Keywords:
accelerometer, uncertainty, digital filter
Download:
IMEKO-WC-2009-TC22-058.pdf
DOI:
-
Event details
Event name:
XIX IMEKO World Congress
Title:

Fundamental and Applied Metrology

Place:
Lisbon, PORTUGAL
Time:
06 September 2009 - 11 September 2009
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