Palpation sensor using two PVDF films

Takeshi Okuyama, Mikiko Sone, Yoshikatsu Tanahashi, Mami Tanaka

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)


In this work, a prototype polyvinylidene fluoride (PVDF) palpation sensor has been developed. The sensor aims to measure stiffness, which is one of the information of biomedical tissue by palpation. The sensor is composed of two PVDF films, a silicone cylindrical column, and an aluminum cylinder. And the classification of hardness is concerned with the ratio of these PVDF outputs. In this paper, the output behavior of the palpation sensor was evaluated in detail by the experimental and numerical approach, and the suitable design to diagnose by the stiffness of tissue was investigated. Using the finite element analysis, the sensor output behavior was predicted. It is confirmed that the analysis is available for investigation of the dimension and the limitation of the sensor against the measuring object.

Original languageEnglish
Title of host publicationICMIT 2009 - Mechatronics and Information Technology
Publication statusPublished - 2010
Event2009 International Conference on Mechatronics and Information Technology, ICMIT 2009 - Gwangju, Korea, Republic of
Duration: 2009 Dec 32009 Dec 5

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


Conference2009 International Conference on Mechatronics and Information Technology, ICMIT 2009
Country/TerritoryKorea, Republic of


  • Finite element analysis
  • Measurement
  • PVDF film
  • Palpation sensor
  • Stiffness


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