Product Data: Artificial Mastoid — Type 4930 (bp0266)
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چکیده
The Artificial Mastoid Type 4930 has been designed for the calibration of bone conduction hearing aids and bone vibrators used in audiometry. It consists of a mechanical simulation of the human head, incorporating a built-in force transducer to monitor the output of the device to be calibrated. All the components of the Artificial Mastoid have been selected to ensure both excellent long-term stability and accurate correspondence with the mechanical characteristics of the human mastoid. It is designed in accordance with the International Electrotechnical Commission publication IEC R 373 (1971) including revision, and meets the requirements of the British Standard BS 4009 (1975) and American National Standard ANSI S3.26-1981.
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