Calibration issues of Tekscan systems for human pressure assessment

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Authors
  1. Morin, E.L.
  2. Bryant, J.T.
  3. Reid, S.A.
  4. Whiteside, R.A.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
The Tekscan pressure sensor system has been designed for relatively easy measurement of contact pressures between two opposing surfaces. However, several factors are known to affect Tekscan sensor output. This paper reports on two pilot studies which were done to investigate the effects of contact surface compliance and changes in the system hardware on Tekscan sensor output. In the first study, linear calibration curves were calculated for a single Tekscan sensor array placed on surfaces of varying compliance. The slopes of the curves and variability in both the slopes and intercepts were found to be affected by surface compliance. In the second study, absolute percentage differences in the raw output data bits between a series of Tekscan sensor-cuff combinations were calculated. These differences ranged from 5-32%. The results of these studies indicate that careful attention must be paid to system set-up and calibration when using the Tekscan pressure sensor system to measure contact pressures.
Report Number
DCIEM-SL-2000-133 — Scientific Literature
Date of publication
31 Dec 2000
Number of Pages
10
DSTKIM No
CA011748
CANDIS No
516308
Format(s):
Hardcopy;Document Image stored on Optical Disk

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