Title :
A low-power milliwatt electromagnetic microspeaker using a PDMS membrane for hearing aids application
Author :
Chen, Y.C. ; Cheng, Y.T.
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
This paper demonstrates a low-power electromagnetic microspeaker with a PDMS membrane for hearing aids application. For a 1.76mW power input, the speaker with a 3.5mm in diameter and 3.3μm thick membrane can generate a sound with the sound pressure level (SPL) of 106dB @1kHz in a 2c.c. coupler.
Keywords :
acoustic intensity; conducting polymers; hearing aids; loudspeakers; PDMS membrane; frequency 1 kHz; hearing aid; milliwatt electromagnetic microspeaker; noise figure 106 dB; power 1.76 mW; size 3.3 mum; size 3.5 mm; sound pressure level; Biomembranes; Coils; Copper; Electromagnetics; Fabrication; Frequency measurement; Hearing aids;
Conference_Titel :
Micro Electro Mechanical Systems (MEMS), 2011 IEEE 24th International Conference on
Conference_Location :
Cancun
Print_ISBN :
978-1-4244-9632-7
DOI :
10.1109/MEMSYS.2011.5734650
