Response of P(VDF-TrFE) Sensor to Force and Temperature

被引：0

作者：

Hannah, Stuart ^{[1
]}

Uttamchandani, Deepak ^{[1
]}

Gleskova, Helena ^{[1
]}

Khan, Saleem ^{[2
]}

Dahiya, Ravinder ^{[3
]}

机构：

[1] Univ Strathclyde, Dept Elect & Elect Engn, Glasgow G1 1XW, Lanark, Scotland

[2] Fdn Bruno Kessler, I-38123 Trento, Italy

[3] Univ Glasgow, Elect & Nanoscale Engn Div, Sch Engn, Glasgow G12 8QQ, Lanark, Scotland

来源：

2015 11TH CONFERENCE ON PH.D. RESEARCH IN MICROELECTRONICS AND ELECTRONICS (PRIME) | 2015年

基金：

英国工程与自然科学研究理事会;

关键词：

P(VDF-TrFE); Pressure Response; Temperature Response; Capacitance; PRESSURE SENSORS;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Responses of a tactile sensor to force (0 to 9 N) and temperature (15 to 47 degrees C) are investigated. The sensor is based on ferroelectric polyvinylidene fluoride - trifluoroethylene (P(VDF-TrFE)) copolymer. The 2.5-mu m-thick copolymer layer was sandwiched between aluminum and gold electrodes and the active sensing area was 25 mm(2). The response of the sensor was measured in a form of capacitance recorded at 2 kHz. The capacitance was measured in a steady-state condition, i.e. after the force and temperature have stabilized. We have found that the sensor's sensitivity to temperature is comparable to that of force, and even greatly exceeds the force sensitivity when dealing with forces larger than 3 N. This is because the response of the sensor to temperature is approximately linear, while the response to the applied force is logarithmic. Consequently, at the lower end of applied forces (< 0.5 N), the sensitivity is 7.5 pF/N while the temperature sensitivity is about 7 pF/degrees C within the whole temperature range.

引用

页码：369 / 372

页数：4