Development of a biomimetic eardrum for acoustic sensing

Pieter Johannes Westerik, Johan W. Berenschot, Gijsbertus J.M. Krijnen

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

3 Citations (Scopus)
59 Downloads (Pure)


The desert locust (schistocerca gregaria) has ears integrating sound reception, impedance transformation and frequency discrimination in a single passive membrane. The anatomy and frequency dependent response of these ears to acoustic input have been extensively studied before. This is the inspiration for the development of a new acoustic sensor with integrated mechanical filtering. We have worked on a new micro- fabrication process based on conformal deposition of Parylene on silicon which was used to make membranes with similar variations in tension, thickness and mass density as the tympanal membrane of the locust. Mapped vibration measurements show similarities in the behaviour of the artificial membrane with the biological original, showing the potential of the approach for future energy efficient passive mechanical filtering approaches.
Original languageEnglish
Title of host publicationProceedings IEEE Sensors 2015
Place of PublicationPiscataway
Number of pages4
ISBN (Print)978-1-4799-8203-5
Publication statusPublished - 1 Nov 2015
Event2015 IEEE Sensors - Busan Exhibition and Convention Center, Busan, Korea, Republic of
Duration: 1 Nov 20154 Nov 2015

Publication series



Conference2015 IEEE Sensors
Country/TerritoryKorea, Republic of


  • EWI-26760
  • IR-99321
  • METIS-315573
  • TST-Life like


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