Seesaw Type Actuator for Haptic Application

Kahye Song, Jung Min Park, Youngsu Cha

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this study, we propose a seesaw type actuator, and we investigate its actuation to determine the most efficient structure. When a high voltage input is applied between the L-shaped actuator and metal plate at the bottom substrate, another panel rises due to reaction of the electrostatic attraction. And it leads to tactile stimulation. In addition, we add a round cap to the edge of the panel of the actuator for more effective stimulation delivery. Various types of actuators experiments showed that the actuator with the largest radius of motion was an actuator with a narrow angle and a long length, and the axis of rotation coincided with the axis of gravity. This is because narrower angles between actuators increase the movable radius of motion and longer actuators can induce electrostatic attraction of larger forces and lose balance if the center of gravity axis does not match. Both gravity and electrostatic attraction are utilized for the operation of the actuator, and this actuator generates strong tactile stimulation without the risk of electric shock to users by separating the user contact part from the electrostatic force region. We expect that this new actuation mechanism is adapted to various haptic devices in the future to help the human-computer interaction.

Original languageEnglish
Title of host publicationHaptic Interaction - Perception, Devices and Algorithms, 2018
EditorsSang-Youn Kim, Hiroyuki Kajimoto, Ki-Uk Kyung, Dongjun Lee, Masashi Konyo
PublisherSpringer Verlag
Number of pages4
ISBN (Print)9789811331930
Publication statusPublished - 2019
Externally publishedYes
Event3rd International AsiaHaptics Conference, 2018 - Incheon, Korea, Republic of
Duration: 2018 Nov 142018 Nov 16

Publication series

NameLecture Notes in Electrical Engineering
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119


Conference3rd International AsiaHaptics Conference, 2018
Country/TerritoryKorea, Republic of

Bibliographical note

Funding Information:
This research was funded by National Research Foundation of Korea grant funded by the Korean Government (MSIP) grant number 2011-0031425.

Funding Information:
Funding. This research was funded by National Research Foundation of Korea grant funded by the Korean Government (MSIP) grant number 2011-0031425.

Publisher Copyright:
© 2019, Springer Nature Singapore Pte Ltd.


  • Electrostatic attraction
  • L-shaped actuator
  • Seesaw type actuator

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering


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