Three-axis pneumatic tactile display with integrated capacitive sensors for feedback control

Seokpyo Yun, Jihyung Yoo, Soochul Lim, Joonah Park, Hyung Kew Lee, Kwang Seok Yun

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

In this paper, we propose a three-axis pneumatic tactile display that is precisely controlled by using integrated capacitive displacement sensors. The proposed tactile display consists of a core body with a 3 × 3 balloon array on its top surface, four lateral balloons made of latex rubber, and inner and outer frames that include capacitive displacement sensors based on a flexible printed circuit board. The 3 × 3 balloon array on the core body is designed to apply normal haptic stimulation to a human fingertip. In addition, the lateral motions of the core body and each frame produce haptic stimulation in a tangential direction. Precise control of lateral motion was achieved by feedback control using the capacitive displacement sensors. The size of the fabricated tactile display was 26 × 26 × 18 mm3. We experimentally performed manipulation of the proposed device with a custom control system, thereby demonstrating accurate control of displacement.

Original languageEnglish
Pages (from-to)275-282
Number of pages8
JournalMicrosystem Technologies
Volume22
Issue number2
DOIs
StatePublished - 1 Feb 2016

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