Piezoelectric resonating tactile stimulators for the stimulus enhancement achieved by reduced stiffness structures with air chambers = 공기 챔버를 가진 저강성 구조로 출력 향상을 꾀한 압전 공진형 촉각 자극기

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 129
  • Download : 0
We have designed, fabricated and tested piezoelectric resonating actuators for tactile stimulation. The piezoelectric resonating tactile stimulators are composed of 3×4 stimulating dot arrays with air chambers. The piezoelectric resonating tactile stimulators use indirect piezoelectric actuation for tactile stimulation, by including specially designed polyimide air chambers on the piezoelectric polymer (polyvinylidene fluoride, PVDF) films. The air chambers on the PVDF films enhance stimulus by reducing the stiffness of total structure, smaller than that of the conventional direct piezoelectric actuation without air chambers. The piezoelectric resonating tactile stimulators are fabricated and characterized. The stimulators achieve the output displacement of 257.0 ± 1.5 nm, the output pressure of $339.1 N/m^2$, and the response time of 0.7 ms when the input voltage of $80 V_{pk}$ (52.5 kHz) is switched at 2 ms intervals (250 Hz), thereby 273.7 % stimulus enhancement compared to the conventional direct piezoelectric actuation. It has been experimentally demonstrated that the proposed piezoelectric resonating actuators are capable of stimulating human skin to support tactile or braille displays integrated into tactile interface systems.
Advisors
Cho, Young-Horesearcher조영호researcher
Description
한국과학기술원 :바이오및뇌공학과,
Publisher
한국과학기술원
Issue Date
2018
Identifier
325007
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 바이오및뇌공학과, 2018.2,[vii, 70 p. :]

Keywords

Piezoelectric resonator▼aPiezoelectric polymer▼aPolymer actuator▼aTactile stimulator▼aTactile display; 압전 공진기▼a압전 폴리머▼a폴리머 구동기▼a촉각 자극기▼a촉각 디스플레이

URI
http://hdl.handle.net/10203/264704
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=734298&flag=dissertation
Appears in Collection
BiS-Theses_Ph.D.(박사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0