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Home > Journals > SCIREA Journal of Aviation & Aerospace > Archive > Paper Information

Experimental Accelerometer Characterization

Volume 1, Issue 1, February 2018    |    PP. 1-19    |PDF (2481 K)|    Pub. Date: December 30, 2017
99 Downloads     941 Views  

Author(s)
Timothy Sands, Stanford University

Abstract
This research describes methods utilizing LabVIEW software and a myDAQ device, a low-cost data acquisition (DAQ) device that gives students the ability to measure and analyze live signals from Bosch BMA145 accelerometers, both signals and noise. This tutorial instructs the reader how to setup the experimental test hardware and characterize an accelerometer and then proceeds to analyze the noise, permitting the utilization of the accelerometer for freefall detection (very useful to “safe” electronic devices in the event they are dropped) utilizing a novel algorithm that is a natural extension of the experiments used for accelerometer characterization and noise analysis.

Keywords
freefall, accelerometer; noise; fast Fourier transform, Bosch BMA145, LabVIEW, myDAQ

Cite this paper
Timothy Sands, Experimental Accelerometer Characterization, SCIREA Journal of Aviation & Aerospace. Vol. 1 , No. 1 , 2018 , pp. 1 - 19 .

References

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[ 2 ] Wenshuai Laio, Yiming Zhao, “Using Dual-Axis Accelerometers to Protect Hard Disk Drives”, Analog Dialogue, 39-11, available at http://www.analog.com/analogdialogue, November, 2005.
[ 3 ] Wenshuai Laio, Yiming Zhao, Accelerometer-based differential free-fall detection system, apparatus, and method and disk drive protection mechanism employing same”, US Patent 7,382,567 B2, June 3, 2008.
[ 4 ] The Datasheet Archive, available at http://www.datasheetarchive.com/ accessed Sept 2017.
[ 5 ] Digital Key Electronics Product Overview, available at website URL https://www.digikey.com/product-detail/en/bosch-sensortec/BMA145/828-1002-1-ND/1987008 accessed Sept 2017.
[ 6 ] Jacob Fraden, Handbook of Modern Sensors, 4th edition, chapter 5, Springer, New York, 2010.
[ 7 ] Ibid, chapter 8.
[ 8 ] Ibid, chapter 5.
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[ 10 ] E. Titchmarsh, Introduction to the theory of Fourier integrals 2nd ed., Oxford University: Clarendon Press, 1948/1986 (ISBN 978-0-8284-0324-5).
[ 11 ] Isaac Newton, Principia, Philosophiae Naturalis (in new latin), 1687. Available at website URL: http://cudl.lib.cam.ac.uk/view/PR-ADV-B-00039-00001/1 accessed Sep 2017.
[ 12 ] Mathworks website Data averaging using matlab, available at website URL: https://www.mathworks.com/help/search.html?qdoc=data+averaging&submitsearch, accessed Sept 2017.
[ 13 ] Mathworks website Read Microsoft Excel spreadsheet file, available at website URL: https://www.mathworks.com/help/matlab/ref/xlsread.html?searchHighlight=xlsread&s_tid=doc_srchtitle
[ 14 ] R.E. Kalman, “A New Approach to Linear Filtering and Prediction Problems”, Transactions of the ASME–Journal of Basic Engineering, 82 (Series D): 35-45, 1960.
[ 15 ] National Instruments Website, Acquiring an Analog Signal: Bandwidth, Nyquist Sampling Theorem, and Aliasing, http://www.ni.com/white-paper/2709/en/, accessed Sept 2017.

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