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. 2017 Dec 5;7:16963. doi: 10.1038/s41598-017-17277-2

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© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Sensing properties of remote tactile sensing system integrated with magnetic synapse. (a) Sensor output signal as a function of applied normal pressure ranging from 0 to 400 kPa; pressure sensitivity S = 0.126 mV/kPa below 100 kPa (inset shows output signal in low pressure range, i.e., 0~2.5 kPa; pressure sensitivity S = 0.4 mV/kPa). (b) Detection of minimum distinguishable pressure (6 Pa) using pieces of sandpaper (30 mg each). (c) Sensor output during loading and unloading of normal pressure (0~100 kPa) shows no hysteresis. The inset shows the output signal in real-time measurement during loading and unloading (0~500 g). (d) Sensing results under repeated normal pressure (40 kPa) for durability (e) Signal-to-noise ratio (SNR) versus frequency. The sensor shows high SNR of >70 dBV below 300 Hz and 20 dBV at 1,000 Hz. (f) Output signal showing the response time (40 ms). The response time (rise time) is defined as the time interval between 10% and 90% of the state values.