Accuracy of the Iscan Pressure Measurement System
QUEEN'S UNIV KINGSTON (ONTARIO) DEPT OF MECHANICAL ENGINEERING
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The Iscan system can be used to measure continuously changing force and pressure distribution at biomechanical interfaces. The objective of this study was to determine bow accurately the Iscan system measures force and force distribution in static loading. Known absolute and relative loads were applied to Iscan sensors using custom-built indentors loaded in a servohydraulic test machine. Over the 35 trials, the mean error for the absolute measurement of force was 6.5 and the standard deviation of the error was 4.4. The mean error in the force distribution measurement over the 25 trials was 0.86 and the standard deviation of the error was 0.58. The results suggest that, when calibration, conditioning and testing protocols are developed carefully, the Iscan system measures force and pressure distribution more accurately than Fuji Prescale film.
- Test Facilities, Equipment and Methods
- Fluid Mechanics