| A miniaturized artificial mastoid using a skull simulator. | |
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MedLine Citation:
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PMID: 9638825 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A miniaturized artificial mastoid of size and weight that allow calibration and measurement of bone conduction hearing aids in a conventional audiometric soundproof box has been developed. Its level of mechanical impedance corresponds to the standard IEC 373 (1990) within the frequency range 250 Hz to 8 kHz. The miniaturized artificial mastoid consists of three parts: coupler, skull simulator (TU-1000), and an external electrical correction filter. The coupler is a highly damped mass-spring system designed to give the miniaturized artificial mastoid mechanical impedance in accordance with the standard IEC 373 (1990). It was found that the miniaturized artificial mastoid yielded results that are in correspondence with results obtained with the Brüel & Kjaer type 4930 artificial mastoid for frequencies above 450 Hz. Thus, at these frequencies, the miniaturized artificial mastoid can be used for audiometer calibration as well as measurement of bone conduction hearing aids. |
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Authors:
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S P Stenfelt; B E Håkansson |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Scandinavian audiology Volume: 27 ISSN: 0105-0397 ISO Abbreviation: Scand Audiol Publication Date: 1998 |
Date Detail:
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Created Date: 1998-10-14 Completed Date: 1998-10-14 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0342230 Medline TA: Scand Audiol Country: DENMARK |
Other Details:
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Languages: eng Pagination: 67-76 Citation Subset: IM |
Affiliation:
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Department of Applied Electronics, Chalmers University of Technology, Göteborg, Sweden. stenfelt@ae.chalmers.se |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Bone Conduction
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physiology Electric Stimulation / instrumentation Equipment Design Hearing Aids Humans Mastoid* Models, Biological Prostheses and Implants* Prosthesis Implantation / instrumentation* Skull* |
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