Highly sensitive resistive type single-axis tactile sensor with liquid pocket

Seonggi Kim; Baek-chul Kim; Jiyeon Jung; Ja Choon Koo; Hyouk Ryeol Choi; Hyungpil Moon

doi:10.1117/12.2045007

26 March 2014 Highly sensitive resistive type single-axis tactile sensor with liquid pocket

Seonggi Kim, Baek-chul Kim, Jiyeon Jung, Ja Choon Koo, Hyouk Ryeol Choi, Hyungpil Moon

Proceedings Volume 9056, Electroactive Polymer Actuators and Devices (EAPAD) 2014; 905612 (2014) https://doi.org/10.1117/12.2045007
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

Abstract

In this paper, we propose the resistive type tactile sensor with a liquid pocket. The tactile sensor with polymer substrate has two components which are the sensing element and the structural part. The sensing part is surrounded by PDMS (Sylgard 184) which is relatively solid. To make the sensor more sensitive, we design the upper part of the sensing element in a shape of half-sphere filled with a liquid (silicone oil). When the force is applied to the sensor, the liquid pressure increases and evenly presses down the sensing element to deform. The size of sensor is 7 x 3 x 1 mm including the wiring part. The good sensitivity (0.012 S/kPa-1) of the fabricated sensor is experimentally verified.

Citation Download Citation

Seonggi Kim, Baek-chul Kim, Jiyeon Jung, Ja Choon Koo, Hyouk Ryeol Choi, and Hyungpil Moon "Highly sensitive resistive type single-axis tactile sensor with liquid pocket", Proc. SPIE 9056, Electroactive Polymer Actuators and Devices (EAPAD) 2014, 905612 (26 March 2014); https://doi.org/10.1117/12.2045007

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