Parsonal Olfactory Environment by Controlled Acoustic Streamings

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H05316
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Human interface and interaction
• Research Institution: The University of Tokyo
• Principal Investigator: Hasegawa Keisuke 東京大学, 大学院新領域創成科学研究科, 特任助教 (20733108)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 音響流 / 非線形音響 / 匂い提示 / 超音波

Outline of Final Research Achievements

We succeeded in generating a narrow, straight and steerable airflow that is accompanied with ultrasound Bessel beam emitted from a phased array of ultrasound transducers. The cross-sectional area of the flow was observed to be almost comparable to several times of the ultrasound wavelength. Based on this technique, we achieved remote fragrance presentation to a specific user in a personalized fashion, where the scent was transported from the scent source to the user’s nostril via the ultrasound-driven airflows. We also demonstrated that selective transportation of a specific kind of scent out of several sources located close to one another was also possible by our technique. We created a system that offered face-tracking scent that targeted freely moving users wearing no devices.

Free Research Field

応用物理学