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Hybrid Focus Using 70 and 40 kHz Ultrasound in Mid-Air Tactile Display

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Haptic Interaction (AsiaHaptics 2016)

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 432))

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Abstract

We examine haptic sensation by a hybrid focus using 70 and 40 kHz ultrasound. The hybrid focus was generated by 70 and 40 kHz phased array. The spatial resolution of 70 kHz phased array is higher than that of 40 kHz case, instead, the attenuation in the air is large in the 70 kHz case. Therefore, a hybrid system is energy-efficient in which a lower spatial frequency component of force pattern is produced by 40 kHz ultrasound and a higher one is created by 70 kHz. In the preliminary experiment, the subjects touched the hybrid focus and reported the similarity of the sensation to the 70 kHz focus.

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References

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Acknowledgements

This research was partly supported by JSPS KAKENHI 16H06303 and JST ACCEL Embodied Media Project.

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Authors and Affiliations

  1. Department of Complexity Science and Engineering, Graduate School of Frontier Science, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, Japan

    Mitsuru Ito, Yasutoshi Makino & Hiroyuki Shinoda

  2. Sensing Solution Development Center, Automotive and Industrial Systems Company, Panasonic Corporation, 1006 Kadoma, Kadoma, Osaka, Japan

    Daisuke Wakuda

Authors
  1. Mitsuru Ito
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  2. Daisuke Wakuda
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  3. Yasutoshi Makino
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  4. Hiroyuki Shinoda
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Corresponding author

Correspondence to Mitsuru Ito .

Editor information

Editors and Affiliations

  1. Tokyo Institute of Technology, Yokohama, Kanagawa, Japan

    Shoichi Hasegawa

  2. Tohoku University, Sendai, Miyagi, Japan

    Masashi Konyo

  3. Electronics and Telecommunications Research Institute, Daejeon, Korea (Republic of)

    Ki-Uk Kyung

  4. The University of Electro-Communications, Tokyo, Japan

    Takuya Nojima

  5. The University of Electro-Communications, Tokyo, Japan

    Hiroyuki Kajimoto

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Ito, M., Wakuda, D., Makino, Y., Shinoda, H. (2018). Hybrid Focus Using 70 and 40 kHz Ultrasound in Mid-Air Tactile Display. In: Hasegawa, S., Konyo, M., Kyung, KU., Nojima, T., Kajimoto, H. (eds) Haptic Interaction. AsiaHaptics 2016. Lecture Notes in Electrical Engineering, vol 432. Springer, Singapore. https://doi.org/10.1007/978-981-10-4157-0_23

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  • DOI: https://doi.org/10.1007/978-981-10-4157-0_23

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-4156-3

  • Online ISBN: 978-981-10-4157-0

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