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JRM Vol.14 No.6 pp. 633-639
doi: 10.20965/jrm.2002.p0633
(2002)

Paper:

Microtouch-Sensor Array Fabricated by Hydrothermal Method

Guiryong Kwon*, Fumihito Arai*, Toshio Fukuda*, Kouichi ltoigawa** and Yasunori Tsukahara**

*Department of Micro System Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603 Japan

**R & D DIV, R & D Center, Tokai Rika Co., LTD. Oguchi-cho, Niwa-gun, Aichi-ken, 480-0195 Japan

Received:
December 1, 2001
Accepted:
January 4, 2002
Published:
December 20, 2002
Keywords:
touch-sensor, PZT thin film, hydrothermal method
Abstract

We propose a microtouch-sensor array applicable in high-temperature environments. PZT thin film was fabricated on a Ti substrate by a hydrothermal method and electrodes were deposited on it to form the sensor and actuator. The actuator is driven at a resonance frequency of 1.045 [kHz] and actuating voltage is low at ±5[V]. The sensor detects impedance change before and after contact. The sensor is simple and easy to miniaturize and works at temperature up to 82°C. This sensor can be used as an automobile control touch-sensor pad instead of conventional capacitive touch pads because it is robust against high temperature. We detail the sensor’s basic features.

Cite this article as:
Guiryong Kwon, Fumihito Arai, Toshio Fukuda, Kouichi ltoigawa, and Yasunori Tsukahara, “Microtouch-Sensor Array Fabricated by Hydrothermal Method,” J. Robot. Mechatron., Vol.14, No.6, pp. 633-639, 2002.
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