Application of Hall element as multimodal sensing device for artificial skin

Jun-ichiro Yuji; Kaito Tanimura

doi:10.1117/12.2009619

19 April 2013 Application of Hall element as multimodal sensing device for artificial skin

Jun-ichiro Yuji, Kaito Tanimura

Proceedings Volume 8692, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013; 86923P (2013) https://doi.org/10.1117/12.2009619
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

Abstract

In this paper, we reports on a tactile sensor with Hall effect elements, which are generally used as magnetic sensors, for multimodal sensing devices to detect the contact force and the temperature. This tactile sensor consists of Hall elements and a magnet that are embedded in an elastic silicone rubber as the artificial skin. Here, the normal contact force is detected by distance change between a Hall element and a magnet, and the temperature is also detected using the temperature dependence of the Hall element. The temperature dependence of Hall elements depends on the Hall material and the drive circuit to generate the Hall voltage. In this study, two Indium antimonide (InSb) Hall elements and two drive circuits, that is, a constant voltage drive and a constant current drive were used to demonstrate the tactile sensor. Two output Hall voltages were measured in the normal contact force range from 0 to 50N, the temperature range from -10 to 50°C. The inverse response surface to identify the normal contact force and the temperature was formulated using the experimental results. It was possible to detect the contact force and the temperature by obtaining two kinds of Hall voltages.

Citation Download Citation

Jun-ichiro Yuji and Kaito Tanimura "Application of Hall element as multimodal sensing device for artificial skin", Proc. SPIE 8692, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013, 86923P (19 April 2013); https://doi.org/10.1117/12.2009619

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KEYWORDS

Sensors

Magnetic sensors

Magnetism

Silicon

Skin

Gallium arsenide

Temperature metrology

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