著者

金子 拓史 ヤェム ヴィボル 池井 寧

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.24, no.2, pp.143-152, 2019 (Released:2019-06-30)

参考文献数

24

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We aimed to generate a walking sensation for a person who just sits on a chair. We considered that, such a virtual walking method allows a local person to experience the performances of other person or a robot who being at the remote area. In this study, we proposed a method of using tendon electrical stimulation combined with kinesthetic sensation on the lower limbs for providing high realistic sensation of walking. We developed a system that can present multisensory stimuli of visual image, kinesthetic and electrical pulses. Electrodes were placed on both the Achilles tendons and the tibialis anterior tendons of the lower limbs. We preliminarily investigated the placement of the electrodes at the lower limbs in terms of sensation of tension to select the appropriate location. We also investigated the sensation of translational motion and the sensation of walking when visual stimulation and electrical/kinesthetic stimulation were presented to the lower limbs. The result of the subjective rating indicated that kinesthetic stimulation could generate the sensations of translational motion and walking. Furthermore, tendon electrical stimulation could enhance these sensations to create more realistic experience.

著者

ヤェム ヴィボル 岡崎 龍太 梶本 裕之

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.21, no.4, pp.555-564, 2016 (Released:2017-02-01)

参考文献数

21

被引用文献数

1

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Several kinds of vibration actuators were developed and widely used for haptic feedback and for simulating tactile experience. However, these actuators have certain design challenges, such as resonance via the spring attached to the vibration mass, and limited acceleration amplitude at low frequency because of the limited travel distance of the mass. In our study, we propose a new vibrotactile presentation method using the rotational motor's counterforce that occurs during acceleration or deceleration. This paper describes the effectiveness of a DC motor for high fidelity vibration and pseudo force presentation, and our design concept of a vibration actuator using a DC motor.

著者

海野 みのり ヤェム ヴィボル 雨宮 智浩 北崎 充晃 池井 寧

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.27, no.1, pp.29-32, 2022 (Released:2022-03-31)

参考文献数

8

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The objective of the present study is the creation of sensation under turning walking using a vestibular display (a motion seat). We added a yaw-rotation mechanism to our three degrees of freedom (3-DOF) motion seat, with which we investigated the contribution of yaw rotation for the turning walking sensation. After an equivalent stimulus of the seat’s yaw rotation to a real left-turn walking was determined, the virtual turning walking sensation was rated by the user study. The result suggested that yaw rotation stimulation improved the sensation of turning walking by 1.6 to 2.2 times to the 3-DOF seat; the motion generated about 34.2% sensation of the actual walking.