固定导线的不同位点对漂浮传感器振动的影响

Effect of Fixing Different Positions of the Wire Linked to FMT on FMT Vibration

佘万东;Alec Fitzgerald O'Connor;

1:南京大学医学院附属鼓楼医院耳鼻咽喉科

2:Auditory implant center Depart ment of Otolaryngology-Head and Neck Surgery

3:Guy's and St.Thomas'Hospitals

4:(南京210008)

摘要
目的探讨固定漂浮传感器(floating mass transducer,FMT)导线的不同位点对FMT振动的影响。方法固定距FMT分别为10mm、5mm和紧贴FMT导线时,应用激光多普勒(laser doppler vibration,LDV)观测声刺激强度为100和80dB SPL时FMT的振动幅值。结果FMT在1、1.5kHz处振动幅值较小,向两侧振动幅值渐增大,0.25和8kHz处最大。固定距FMT10mm、5mm和紧贴FMT导线时,均能产生明显的振动,尽管夹持点紧贴FMT时,振动幅值略高于另外两点,但三者间差异无统计学意义。结论固定FMT导线的不同位点,FMT均能产生相似的振幅。
关键词
漂浮传感器;激光多普勒
基金项目(Foundation):
作者
佘万东;Alec Fitzgerald O'Connor;
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