Pendulum analysis of an integrated accelerometer to assess its suitability to measure dynamic acceleration for gait applications

Alan Godfrey*, Timothy Hourigan, Gearóid M. ÓLaighin

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Citations (Scopus)

Abstract

Advances in surface micro-machining technology have led to the production of miniature, inexpensive, integrated accelerometers suitable for use in human movement analysis. The objective of this paper was to assess the ability of the biaxial ADXL202 integrated accelerometer to measure dynamic acceleration for gait applications. Mounting the integrated accelerometer at the centre of oscillation of a custom-designed pendulum and subjected it to a known repeatable, varying acceleration signal similar to that experienced in gait. This allowed direct comparison of the predicted pendulum acceleration (derived from a goniometer) with the acceleration measured by the integrated accelerometer. The predicted pendulum acceleration and the acceleration measured by the integrated accelerometer matched to a high degree with errors of less than 2% for radial and 7% for tangential acceleration.

Original languageEnglish
Title of host publication29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07
PublisherIEEE
Pages4891-4894
Number of pages4
ISBN (Print)1424407885, 9781424407880
DOIs
Publication statusPublished - 1 Dec 2007
Event29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07 - Lyon, France
Duration: 23 Aug 200726 Aug 2007

Conference

Conference29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07
CountryFrance
CityLyon
Period23/08/0726/08/07

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