Investigation of discrimination threshold in the haptic presentation by electrical muscle stimulation

Abstract

We have proposed a method for realizing the augmented reality in haptic by using electrical muscle stimulation in combination with actual haptic stimulation. The results of the experiment that compared to existing methods showed the effectiveness of electrical muscle stimulation. We thought it is important to examine the properties of electrical muscle stimulation. Therefore, this study measures the relationship between an input voltage and the presented power. Then we use the results to measure the force discrimination threshold due to electrical muscle stimulation. This paper considers the relationship between the obtained input voltage and presented force, and details the results of a psychophysical experiment performed to measure the discrimination threshold.