B33 コンデンサマイクロフォンを使用した咀嚼筋音の計測と解析(生体計測・解析1)

概要

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In this paper, we developed the less-invasive type measurement system for mastication function. Sensor used the condenser microphone that was able to be measured to the low frequency band (10-100Hz). The sound generated while masticating was measured with this sensor. First, the muscle sound generated by the opening and closing motion of the mouth was measured with the microphone, and the frequency was analyzed. It has been found that the bandwidth of the muscle sound is different according to existence or nonexistence of the joint sound. Next, the muscle sound when tuinggam was masticated was measured, and the cycle of one stroke was compared by 20's examinee with 30's examinee. It has been found that the cycle of 20's examinee is faster than that of 30's examinee.
2008-11-05