A novel structure of electromagnetic MEMS speaker for hearing aid application

Asih Setiarini, Gandi Sugandi, Yusuf Nur Wijayanto, Goib Wiranto, Robeth Viktoria Manurung, I. Dewa Putu Hermida

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

5 Citations (Scopus)

Abstract

A novel structure for this microspeaker is composed of permanent magnet Neodymium Iron Boron (NdFeB) with the magnetization of 1.42 T, diameter 1.6 mm, a thickness 0.8 mm is bonded on the PDMS membrane and N-copper planar coil is fixed on the bottom wafer. The total size of the PDMS membrane is 3 × 3 mm2 and thickness 130 μm. The proposed microspeaker is designed for CIC (completely in canal) type hearing aid. The calculation results successfully confirmed that the proposed MEMS microspeaker have a better of electroacoustic performance and efficiency. The sound pressure level (SPL) is 99 dB and the maximum displacement is 5.8 μm at the resonance frequency of 630 Hz with the microspeaker efficiency is 0.06%. In addition, the aim of this structure is to get the low resonance frequency and high acoustic efficiency is validated.

Original languageEnglish
Title of host publicationProceedings - 2018 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications, ICRAMET 2018
EditorsC.B.A. Wael, B.A. Prabowo, R.V. Manurung, P. Putranto
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages112-116
Number of pages5
ISBN (Electronic)9781538665190
DOIs
Publication statusPublished - 2 Jul 2018
Event2018 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications, ICRAMET 2018 - Serpong, Indonesia
Duration: 1 Nov 20182 Nov 2018

Publication series

NameProceedings - 2018 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications, ICRAMET 2018

Conference

Conference2018 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications, ICRAMET 2018
Country/TerritoryIndonesia
CitySerpong
Period1/11/182/11/18

Keywords

  • hearing aid
  • MEMS
  • microspeaker
  • PDMS
  • SPL

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