Twenty-four position tilt test for accelerometer cross-axial sensitivity compensation

  • Miodrag Z. Malović University of Belgrade, Faculty of Technology and Metallurgy, Innovation center
  • Ljiljanа М. Brajović University of Belgrade, Faculty of Civil engineering, Department of mathematics, physics and descriptive geometry
  • Tomislav B. Šekara University of Belgrade, Faculty of Electrical engineering, Department of signals and systems
DOI: https://doi.org/10.5937/vojtehg65-13137
Keywords: Accelerometers, Digital signal processing, Acceleration, Sensitivity, transverse, sensors, MEMS,

Abstract


Cross-axial or transverse sensitivity of an accelerometer can be compensated by digital processing of the output signal. To perform this, it is necessary to determine coefficients that describe a sensor’s response to excitation experimentally. Many procedures advised by standards and scientific papers use expensive equipment which is not available in every laboratory. Therefore, a simple method is proposed, namely a variation of the static tilt test, requiring no other measuring equipment than the sensor itself and a flat surface. Results vary depending on sensor surface and housing quality, but it has been shown that cross sensitivity effects can be reduced from several percent usually associated with commercial three-axial MEMS accelerometers down to 1% or less.

 

Author Biographies

Miodrag Z. Malović, University of Belgrade, Faculty of Technology and Metallurgy, Innovation center
Research Associate
Ljiljanа М. Brajović, University of Belgrade, Faculty of Civil engineering, Department of mathematics, physics and descriptive geometry
Associate Professor
Tomislav B. Šekara, University of Belgrade, Faculty of Electrical engineering, Department of signals and systems
Associate Professor

References

Dosch, J.J., 2000. Automated testing of accelerometer transverse sensitivity, PCB Piezotronics Technical note AR-69.

Lawrence, A., 2001. Modern inertial technology: Navigation, guidance and control. 2nd ed. New York | Berlin | Heidelberg: Springer-Verlag.

Liu, Y., Wang, G., Guo, C., 2009. Analysis for transverse sensitivity of the microaccelerometer. Engineering, 1(3), pp.196-200. Available at: http://dx.doi.org/doi:10.4236/eng.2009.13023.

Malović, M., Brajović, L., Mišković, Z., Todorović, G., 2013. Vibration measurements using a wireless sensors network. Technics, 68(special edition), pp.19-26.

Sill, R.D., Seller, E.J., 2006. Accelerometer transverse sensitivity measurement using planar orbital motion. In: Proc. of 77th Shock and Vibration Symposium, Monterey, CA, USA.

Sysoeva, S., 2006. Avtomobil'nye akselerometry. Chast' 5. Perspektivnaja jelementnaja baza poverhnostnyh kremnievyh emkostnyh MEMS akselerometrov (in Russian). Components and Technology, 4, pp.28-39.

Veldman, C.S., 2012. Implementation of an accelerometer transverse sensitivity measurement system. In: Proc. of Test & Measurement Conference, Muldersdrift, Gauteng, South Africa, pp.254-262.

VTI Technologies, 2005. Cross-axis compensation, Application note 32. [Internet]. Available at: http://www.mouser.com/pdfdocs/an32_crossaxis_compensation.pdf. Accessed: 25. January 2017.

Published
2017/06/29
Issue
Vol. 65 No. 3 (2017): July – September
Section
Original Scientific Papers

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