Thin Film PZT Acoustic Sensor for Fully Implantable Cochlear Implants†
AbstractThis paper presents design and fabrication of a MEMS-based thin film piezoelectric transducer to be placed on an eardrum for fully-implantable cochlear implant (FICI) applications. Resonating at a specific frequency within the hearing band, the transducer senses eardrum vibration and generates the required voltage output for the stimulating circuitry. Moreover, high sensitivity of the sensor, 391.9 mV/Pa @900 Hz, decreases the required power for neural stimulation. The transducer provides highest voltage output in the literature (200 mVpp @100 dB SPL) to our knowledge. A multi-frequency piezoelectric sensor, covering the daily acoustic band, is designed based on the test results and validated through FEA. The implemented system provides mechanical filtering, and mimics the natural operation of the cochlea. Herewith, the proposed sensor overcomes the challenges in FICI operations and demonstrates proof-of-concept for next generation FICIs.
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
İlik, B.; Koyuncuoğlu, A.; Uluşan, H.; Chamanian, S.; Işık, D.; Şardan-Sukas, Ö.; Külah, H. Thin Film PZT Acoustic Sensor for Fully Implantable Cochlear Implants. Proceedings 2017, 1, 366.
İlik B, Koyuncuoğlu A, Uluşan H, Chamanian S, Işık D, Şardan-Sukas Ö, Külah H. Thin Film PZT Acoustic Sensor for Fully Implantable Cochlear Implants. Proceedings. 2017; 1(4):366.Chicago/Turabian Style
İlik, Bedirhan; Koyuncuoğlu, Aziz; Uluşan, Hasan; Chamanian, Salar; Işık, Dilek; Şardan-Sukas, Özlem; Külah, Haluk. 2017. "Thin Film PZT Acoustic Sensor for Fully Implantable Cochlear Implants." Proceedings 1, no. 4: 366.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.