Abstract
Humans have a high sensitivity and a broad receptive field in tactile function and the skin performs an important role to propagate mechanical stimulation to mechanoreceptors. Previously, a finite element analysis using a skin model with collagen fibers revealed that the collagen fibers disperse stress concentrations in subcutaneous tissue. Thus, this paper presents the development of a soft tactile sensor having a structure of the subcutaneous tissue composed of adipose tissue and the collagen fibers by using urethane resins. As a sensing element, the compression of the adipose tissue part occurred by deformation on the sensor’s surface is measured by using the water level. A response of the proposed sensor is compared with a response of a sensor having a conventional uniform structure. The results indicate that the proposed sensor has a broad receptive field maintaining a high sensitivity as compared with the uniform sensor.
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Acknowledgment
Continual technical advices for tissue preparation by M. Kokubo, Ph. D. from Fujita Health University School of Medicine and A. Morohashi from Tohoku University are gratefully appreciated.
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Sonoi, Y. et al. (2016). Basic Study on a Soft Tactile Sensor Based on Subcutaneous Tissue with Collagen Fibers. In: Bello, F., Kajimoto, H., Visell, Y. (eds) Haptics: Perception, Devices, Control, and Applications. EuroHaptics 2016. Lecture Notes in Computer Science(), vol 9775. Springer, Cham. https://doi.org/10.1007/978-3-319-42324-1_4
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DOI: https://doi.org/10.1007/978-3-319-42324-1_4
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