论文部分内容阅读
声阻抗测听法是近年来开展的一种客观测听法。我们对100只正常耳进行声阻抗测听,以求获得可供参考的正常均值。测试对象为50名护校女学员,年龄在15~25岁。无耳疾史,近期无感冒史,全身健康。纯音语言频率听阈在20分贝以内。采用丹麦DA-1型听力计测定250~4000赫气导听阈,用Madsen ZS77-MB型阻抗听力计及所附X-Y记录仪进行各项检
Acoustic impedance audiometry is an objective measurement method developed in recent years. We tested the acoustic impedance of 100 normal ears in order to obtain a normal average for reference. Subjects for the 50 nursing school female students, aged 15 to 25 years old. No history of ear disease, no recent history of cold, good health. Pure tone language frequency threshold of 20 dB or less. The Danish DA-1 audiometer was used to measure the hearing threshold of 250-4000 Hz. The Madsen ZS77-MB impedance audiometer and the attached X-Y recorder were used to perform various tests