J0204-1-3 爪装着型触診センサの開発(生体振動計測とその応用(1))

概要

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In this paper, a nail mounted palpation sensor is developed in order to perform a palpation by hand and stiffness measurement by a sensor simultaneously. The polyvinydene fluoride (PVDF) film. which is a kind of piezoelectric materials, is used as the sensor material. The sensor consists of a PVDF film, silicone sheet and a false nail. PVDF film was glued to silicone sheet, and is attached on artificial nail. The whole sensor part is fitted to finger nail with double-sided tape. In measurement, the finger is vibrated by a vibro-machine fitted to the root of the finger and the sensor output is obtained by contacting the finger tip on the objects. The fundamental characteristic and possibility of stiffness measurement are investigated using the silicone rubber samples with Young's modulus corresponding to prostatic cancer and normal prostate. The experimental results showed that magnitude of output voltage is corresponded with the stiffness of sample. It is confirmed that the nail mounted palpation sensor is possible to discriminate the stiffness by experiments.
社団法人日本機械学会の論文
2009-09-12