Home // ACHI 2023, The Sixteenth International Conference on Advances in Computer-Human Interactions // View article
Authors:
Hyung-Sik Kim
Kyu-Beom Kim
Ji-Su Kim
Soon-Cheol Chung
Keywords: Non-conctact tactile stimulator; Circular-coil; Magnetic field strength; Density; Heat, Heat-sink.
Abstract:
In this study, characteristics of coil, which is an actuator of magnetic field-based non-contact tactile presentation technology, were simulated. To induce a sense of touch using a magnetic field without wearing any devices on hand, a high-power power supply device, a power semiconductor switch, and a coil for generating a magnetic field are required. Because of the high power used, the power supply and coil require a separate heat sink device. Therefore, a simulation study was conducted on the characteristics of coils in order not to use a heat dissipation device. Simulations were conducted for the strength and field pattern of the magnetic field for each experimental frequency, the density of the magnetic field, and the generated heat for the circular coil. From the results, the magnetic field density and distribution were the same at all frequencies. In the analysis of the change in magnetic field density according to the frequency, the difference in the density of the magnetic field calculated at 5 Hz and 250 Hz was only about 2.03%. In the case of heat analysis, the time required to recover to the ambient temperature of 25 ℃ is less than 10 seconds in the case of 5 Hz condition, but the time required to return to the ambient temperature is more than 3.6 minutes at 250 Hz. Through this study, it was confirmed that a circular coil with a diameter of about 28 cm made of copper can operate for a long time without a cooling system under natural convection conditions.
Pages: 95 to 96
Copyright: Copyright (c) IARIA, 2023
Publication date: April 24, 2023
Published in: conference
ISSN: 2308-4138
ISBN: 978-1-68558-078-0
Location: Venice, Italy
Dates: from April 24, 2023 to April 28, 2023