Experimental study of an implantable fiber-optic microphone on human cadavers
Аутори
Đinović, ZoranPavelka, Robert
Tomić, Miloš
Sprinzl, Georg
Müller, Julia Gertrud
Traxler, Hannes
Чланак у часопису (Рецензирана верзија)
Метаподаци
Приказ свих података о документуАпстракт
In this paper, we present the results of an experimental study about a novel fiber optical vibrometer, aimed to be used as a totally implantable fiber-optic microphone for hearing aids. The sensor head, implanted inside the human cadaver middle ear, detects the amplitude of the incus vibrations, which are produced by an external acoustical source. The probe beam of coherent vertical cavity surface emitting laser (VCSEL) radiation is directed to the incus and the phase-modulated reflected beam is captured and demodulated. The problem of interferometric fading was solved using two quasi-quadrature signals, passively produced by the 3 × 3 single-mode fiber-optic coupler, processed by a special embedded algorithm. The implanted optoelectronic module works with very low-power consumption, performs real-time signal processing and outputs an analogue signal proportional to the incus vibration. The amplitude of the incus vibrations at different sound pressure levels (SPL) from 40 to 90 dB and ...at frequencies from 100 Hz to 10 kHz were measured by the implanted system. The system was evaluated on five cadaver skulls. The measured amplitudes were in the range of 1 pm to 5 nm, depending on the subjected skull and the applied sound pressure.
Кључне речи:
implantable microphone / fiber-optic sensors / interferometry / hearing aids / cochlear implantИзвор:
Hearing Research, 2021, 410, 108351-Издавач:
- Elsevier BV
Финансирање / пројекти:
- Niederösterreichische Forschungs- & Bildungsgesellschaft (NFB): Life Science grant: LS14-026 and ACMIT Gmbh
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200175 (Институт техничких наука САНУ, Београд) (RS-200175)
Напомена:
- This is the peer reviewed version of the article: Djinović, Z., Pavelka, R., Tomić, M., Sprinzl, G., Müller, J. G., & Traxler, H. (2021). Experimental study of an implantable fiber-optic microphone on human cadavers. Hearing Research, 410, 108351. https://doi.org/10.1016/j.heares.2021.108351
Повезане информације:
- Друга верзија
https://doi.org/10.1016/j.heares.2021.108351 - Друга верзија
https://hdl.handle.net/21.15107/rcub_dais_12259 - Повезани садржај
https://hdl.handle.net/21.15107/rcub_dais_12260
DOI: 10.1016/j.heares.2021.108351
ISSN: 03785955
WoS: 000703669000001
Scopus: 2-s2.0-85115082255
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Đinović, Zoran AU - Pavelka, Robert AU - Tomić, Miloš AU - Sprinzl, Georg AU - Müller, Julia Gertrud AU - Traxler, Hannes PY - 2021 UR - https://dais.sanu.ac.rs/123456789/12143 AB - In this paper, we present the results of an experimental study about a novel fiber optical vibrometer, aimed to be used as a totally implantable fiber-optic microphone for hearing aids. The sensor head, implanted inside the human cadaver middle ear, detects the amplitude of the incus vibrations, which are produced by an external acoustical source. The probe beam of coherent vertical cavity surface emitting laser (VCSEL) radiation is directed to the incus and the phase-modulated reflected beam is captured and demodulated. The problem of interferometric fading was solved using two quasi-quadrature signals, passively produced by the 3 × 3 single-mode fiber-optic coupler, processed by a special embedded algorithm. The implanted optoelectronic module works with very low-power consumption, performs real-time signal processing and outputs an analogue signal proportional to the incus vibration. The amplitude of the incus vibrations at different sound pressure levels (SPL) from 40 to 90 dB and at frequencies from 100 Hz to 10 kHz were measured by the implanted system. The system was evaluated on five cadaver skulls. The measured amplitudes were in the range of 1 pm to 5 nm, depending on the subjected skull and the applied sound pressure. PB - Elsevier BV T2 - Hearing Research T1 - Experimental study of an implantable fiber-optic microphone on human cadavers SP - 108351 VL - 410 DO - 10.1016/j.heares.2021.108351 UR - https://hdl.handle.net/21.15107/rcub_dais_12143 ER -
@article{ author = "Đinović, Zoran and Pavelka, Robert and Tomić, Miloš and Sprinzl, Georg and Müller, Julia Gertrud and Traxler, Hannes", year = "2021", abstract = "In this paper, we present the results of an experimental study about a novel fiber optical vibrometer, aimed to be used as a totally implantable fiber-optic microphone for hearing aids. The sensor head, implanted inside the human cadaver middle ear, detects the amplitude of the incus vibrations, which are produced by an external acoustical source. The probe beam of coherent vertical cavity surface emitting laser (VCSEL) radiation is directed to the incus and the phase-modulated reflected beam is captured and demodulated. The problem of interferometric fading was solved using two quasi-quadrature signals, passively produced by the 3 × 3 single-mode fiber-optic coupler, processed by a special embedded algorithm. The implanted optoelectronic module works with very low-power consumption, performs real-time signal processing and outputs an analogue signal proportional to the incus vibration. The amplitude of the incus vibrations at different sound pressure levels (SPL) from 40 to 90 dB and at frequencies from 100 Hz to 10 kHz were measured by the implanted system. The system was evaluated on five cadaver skulls. The measured amplitudes were in the range of 1 pm to 5 nm, depending on the subjected skull and the applied sound pressure.", publisher = "Elsevier BV", journal = "Hearing Research", title = "Experimental study of an implantable fiber-optic microphone on human cadavers", pages = "108351", volume = "410", doi = "10.1016/j.heares.2021.108351", url = "https://hdl.handle.net/21.15107/rcub_dais_12143" }
Đinović, Z., Pavelka, R., Tomić, M., Sprinzl, G., Müller, J. G.,& Traxler, H.. (2021). Experimental study of an implantable fiber-optic microphone on human cadavers. in Hearing Research Elsevier BV., 410, 108351. https://doi.org/10.1016/j.heares.2021.108351 https://hdl.handle.net/21.15107/rcub_dais_12143
Đinović Z, Pavelka R, Tomić M, Sprinzl G, Müller JG, Traxler H. Experimental study of an implantable fiber-optic microphone on human cadavers. in Hearing Research. 2021;410:108351. doi:10.1016/j.heares.2021.108351 https://hdl.handle.net/21.15107/rcub_dais_12143 .
Đinović, Zoran, Pavelka, Robert, Tomić, Miloš, Sprinzl, Georg, Müller, Julia Gertrud, Traxler, Hannes, "Experimental study of an implantable fiber-optic microphone on human cadavers" in Hearing Research, 410 (2021):108351, https://doi.org/10.1016/j.heares.2021.108351 ., https://hdl.handle.net/21.15107/rcub_dais_12143 .