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Ambient environmental effects can often interfere with transducers and affect the accuracy of sensor readings. A typical method of compensating for temperature in strain measurements is to construct a full-bridge Wheatstone circuit. The objective of this study was to design patterned nanocomposites deposited onto fabric substrates to form a materials-based Wheatstone bridge circuit that could automatically compensate for unwanted ambient effects. Motion Tape (i.e., a self-adhesive, elastic-fabric-based nanocomposite sensor) specimens with patterned nanocomposite elements and conductive traces were designed to form a full-bridge circuit. The results showed that their strain sensing response was not adversely affected by concurrent temperature effects.
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Yun-An Lin, Jacob Watson, Kenneth J. Loh, "Automatic compensation of temperature effects in motion tape wearable fabric sensors," Proc. SPIE PC12045, Nano-, Bio-, Info-Tech Sensors, and Wearable Systems 2022, PC1204502 (18 April 2022); https://doi.org/10.1117/12.2612774