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Open AccessArticle

Assessment of Stickiness with Pressure Distribution Sensor Using Offset Magnetic Force

Department of informatics, The University of Electro-Communications, Tokyo 182-8585, Japan
Shiseido Global Innovation Center, Kanagawa 220-0011, Japan
Author to whom correspondence should be addressed.
Micromachines 2019, 10(10), 652;
Received: 29 August 2019 / Revised: 20 September 2019 / Accepted: 27 September 2019 / Published: 27 September 2019
(This article belongs to the Special Issue Tactile Sensing Technology and Systems)
The quantification of stickiness experienced upon touching a sticky or adhesive substance has attracted intense research attention, particularly for application to haptics, virtual reality, and human–computer interactions. Here, we develop and evaluate a device that quantifies the feeling of stickiness experienced upon touching an adhesive substance. Keeping in mind that a typical pressure distribution sensor can only measure a pressing force, but not a tensile force, in our setup, we apply an offset pressure to a pressure distribution sensor and measure the tensile force generated by an adhesive substance as the difference from the offset pressure. We propose a method of using a magnetic force to generate the offset pressure and develop a measuring device using a magnet that attracts magnetic pin arrays and pin magnets; the feasibility of the method is verified with a first prototype. We develop a second prototype that overcomes the noise problems of the first, arising from the misalignment of the pins owing to the bending of the magnetic force lines at the sensor edges. We also obtain measurement results for actual samples and standard viscosity liquids. Our findings indicate the feasibility of our setup as a suitable device for measuring stickiness. View Full-Text
Keywords: haptics; measurement techniques; stickiness; sticky feeling haptics; measurement techniques; stickiness; sticky feeling
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MDPI and ACS Style

Kameoka, T.; Takahashi, A.; Yem, V.; Kajimoto, H.; Matsumori, K.; Saito, N.; Arakawa, N. Assessment of Stickiness with Pressure Distribution Sensor Using Offset Magnetic Force. Micromachines 2019, 10, 652.

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