Improving Performance of Ultrasound Transducers with Aerogel Matching Layer for Tactile Display

Georgios Korres; Mohamad Eid

doi:10.1109/HAVE.2018.8547511

Improving Performance of Ultrasound Transducers with Aerogel Matching Layer for Tactile Display

Georgios Korres, Mohamad Eid

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Focused ultrasound is emerging as a novel technique for mid-air tactile display. A striking limitation is the low transduction of ultrasound energy due, in part, to the massive acoustic impedance mismatch between the piezoelectric transducer and air. This paper investigates the use of silica aerogel alloys as a matching layer to improve transduction efficiency in air for mid-air tactile display. Two transducers are manually machined and evaluated to proof-concept the theory proposed in this paper. Results demonstrated that the manually machined transducers produce 2-3 dBV acoustic energy in air compared to the commercially available transducer. Future work involves exploring an automated process to machine a large number of these transducers and buiding an array with the modified transducers in order to perceptually evaluate the performance for tactile display.

Original language	English (US)
Title of host publication	HAVE 2018 - IEEE International Symposium on Haptic, Audio-Visual Environments and Games, Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1-6
Number of pages	6
ISBN (Electronic)	9781538658383
DOIs	https://doi.org/10.1109/HAVE.2018.8547511
State	Published - Nov 26 2018
Event	16th IEEE International Symposium on Haptic, Audio-Visual Environments and Games, HAVE 2018 - Dalian, China Duration: Sep 20 2018 → Sep 21 2018

Publication series

Name	HAVE 2018 - IEEE International Symposium on Haptic, Audio-Visual Environments and Games, Proceedings

Other

Other	16th IEEE International Symposium on Haptic, Audio-Visual Environments and Games, HAVE 2018
Country/Territory	China
City	Dalian
Period	9/20/18 → 9/21/18

Keywords

matching layer
mid-air tactile display
silica aerogel alloys
ultrasound transducer

ASJC Scopus subject areas

Human-Computer Interaction
Media Technology
Human Factors and Ergonomics

Access to Document

10.1109/HAVE.2018.8547511

Cite this

Korres, G., & Eid, M. (2018). Improving Performance of Ultrasound Transducers with Aerogel Matching Layer for Tactile Display. In HAVE 2018 - IEEE International Symposium on Haptic, Audio-Visual Environments and Games, Proceedings (pp. 1-6). Article 8547511 (HAVE 2018 - IEEE International Symposium on Haptic, Audio-Visual Environments and Games, Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/HAVE.2018.8547511

Improving Performance of Ultrasound Transducers with Aerogel Matching Layer for Tactile Display. / Korres, Georgios; Eid, Mohamad.
HAVE 2018 - IEEE International Symposium on Haptic, Audio-Visual Environments and Games, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. p. 1-6 8547511 (HAVE 2018 - IEEE International Symposium on Haptic, Audio-Visual Environments and Games, Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Korres, G & Eid, M 2018, Improving Performance of Ultrasound Transducers with Aerogel Matching Layer for Tactile Display. in HAVE 2018 - IEEE International Symposium on Haptic, Audio-Visual Environments and Games, Proceedings., 8547511, HAVE 2018 - IEEE International Symposium on Haptic, Audio-Visual Environments and Games, Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 1-6, 16th IEEE International Symposium on Haptic, Audio-Visual Environments and Games, HAVE 2018, Dalian, China, 9/20/18. https://doi.org/10.1109/HAVE.2018.8547511

Korres G, Eid M. Improving Performance of Ultrasound Transducers with Aerogel Matching Layer for Tactile Display. In HAVE 2018 - IEEE International Symposium on Haptic, Audio-Visual Environments and Games, Proceedings. Institute of Electrical and Electronics Engineers Inc. 2018. p. 1-6. 8547511. (HAVE 2018 - IEEE International Symposium on Haptic, Audio-Visual Environments and Games, Proceedings). doi: 10.1109/HAVE.2018.8547511

Korres, Georgios ; Eid, Mohamad. / Improving Performance of Ultrasound Transducers with Aerogel Matching Layer for Tactile Display. HAVE 2018 - IEEE International Symposium on Haptic, Audio-Visual Environments and Games, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 1-6 (HAVE 2018 - IEEE International Symposium on Haptic, Audio-Visual Environments and Games, Proceedings).

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abstract = "Focused ultrasound is emerging as a novel technique for mid-air tactile display. A striking limitation is the low transduction of ultrasound energy due, in part, to the massive acoustic impedance mismatch between the piezoelectric transducer and air. This paper investigates the use of silica aerogel alloys as a matching layer to improve transduction efficiency in air for mid-air tactile display. Two transducers are manually machined and evaluated to proof-concept the theory proposed in this paper. Results demonstrated that the manually machined transducers produce 2-3 dBV acoustic energy in air compared to the commercially available transducer. Future work involves exploring an automated process to machine a large number of these transducers and buiding an array with the modified transducers in order to perceptually evaluate the performance for tactile display.",

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AB - Focused ultrasound is emerging as a novel technique for mid-air tactile display. A striking limitation is the low transduction of ultrasound energy due, in part, to the massive acoustic impedance mismatch between the piezoelectric transducer and air. This paper investigates the use of silica aerogel alloys as a matching layer to improve transduction efficiency in air for mid-air tactile display. Two transducers are manually machined and evaluated to proof-concept the theory proposed in this paper. Results demonstrated that the manually machined transducers produce 2-3 dBV acoustic energy in air compared to the commercially available transducer. Future work involves exploring an automated process to machine a large number of these transducers and buiding an array with the modified transducers in order to perceptually evaluate the performance for tactile display.

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Improving Performance of Ultrasound Transducers with Aerogel Matching Layer for Tactile Display

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Keywords

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