A Touchpad for Force and Location Sensing

被引：21

作者：

Kim, Dong-Ki ^{[1
]}

Kim, Jong-Ho ^{[1
]}

Kwon, Hyun-Joon ^{[1
]}

Kwon, Young-Ha ^{[2
]}

机构：

[1] KRISS, Mech Metrol Ctr, Daejoen, South Korea

[2] Kyung Hee Univ, Dept Mech Engn, Yongin, South Korea

来源：

ETRI JOURNAL | 2010年 / 32卷 / 05期

关键词：

Touch input device; touchscreen; touchpad; contact-resistance-type force sensor; contact force; contact location; TACTILE SENSOR;

D O I：

10.4218/etrij.10.1510.0073

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：

This paper presents the design and fabrication model of a touchpad based on a contact-resistance-type force sensor. The touchpad works as a touch input device, which can sense contact location and contact force simultaneously. The touchpad is 40 mm wide and 40 mm long. The touchpad is fabricated by using a simple screen printing technique. The contact location is evaluated by the calibration setup, which has a load cell and three-axis stages. The location error is approximately 4 mm with respect to x-axis and y-axis directions. The force response of the fabricated touchpad is obtained at three points by loading and unloading of the probe. The touchpad can detect loads from 0 N to 2 N. The touchpad shows a hysteresis error rate of about 11% and uniformity error rate of about 3%.

引用

页码：722 / 728

页数：7

共 9 条

[1] Tactile sensing technology for minimal access surgery - a review [J].