Clinical study on sweep-frequency tympanometry. Data analysis using principal component analysis.
نویسندگان
چکیده
منابع مشابه
[Clinical study on sweep-frequency tympanometry--data analysis using principal component analysis].
A sweep-frequency tympanometer has been developed to diagnose auditory ossicular lesions more precisely. This device measures acoustic middle ear features by changing the probe tone frequency continuously. The oscillator sweeps frequency of the probe tone from 200 to 2,500Hz 1.5 seconds. A microphone picks up the changes in the acoustic pressure and the phase in the external auditory meatus dur...
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ژورنال
عنوان ژورنال: Nippon Jibiinkoka Gakkai Kaiho
سال: 1989
ISSN: 0030-6622,1883-0854
DOI: 10.3950/jibiinkoka.92.923