强噪声引起的听力损伤预防和快速初筛仪的研制  

Development of Preliminary Screening Acoumeter for the Prevention of Noise-induced Hearing Loss

作　　者：季家红[1] 郭军涛[1] 田晓东[1] 

机构地区：[1]空军总医院医学工程科,北京100142

出　　处：《中国医疗设备》2009年第2期35-37,共3页China Medical Devices

摘　　要：目的研制强噪声引起听力损伤预防和快速初筛仪,能预防强噪声给人员带来的听力损伤,并能实施听力损伤的快速筛查。方法研制基于32位嵌入式微处理器ARM7的LPC2148+SD卡+VS1003的掌上型听力损伤预防和初筛仪,其中心频率和强度可调,利用耳机作用于人耳,实现听力快速自查。该仪器可选择不同特征频率实施噪声预暴露,起到噪声损伤的预防作用。结果经过试验与标定,该仪器能降低强噪声引起听力损伤的比例和程度,听力损伤的快速筛查部分通过计量检定。Objective To develop a kind of preliminary screening acoumeter for the prevention of noise- induced hearing loss （NIHL）. Methods This portable preliminary screening acoumeter based on ARM7 LPC2148＋SD card＋VS1003 can make anti-noise hearing protection. The studies show that the loss of auditory sensitivity caused by exposure to liigh-level acoustic stimuli can be significantly reduced by pre- exposing the subject to moderate-level acoustic stimuli. This acoumeter produces the sound of various level and frequency. Results The acoumeter can reduce the proportion and degree of noise-induced hearing loss via test and calibration, and the quick screening part has been inspected for measurement.

关 键 词：噪声 听力损伤 听力计 

分 类 号：R764[医药卫生—耳鼻咽喉科] R318.6[医药卫生—临床医学]