一、引言耳科医生对中耳压强测量极感兴趣,因为由此能断定耳咽管功能。耳咽管使中耳和大气之间的压强平衡。功能障碍在中耳造成相对真空,继而出现卡他性渗出物,在学令儿童中经常发生这种现象。由于听力损失可能在受教育方面造成显著影响,若不加以治疗,就会日渐加重,造成永久性中耳损伤。中耳压强的电声测量为中耳病理学的筛选检查提供了一种简单、迅速、无损的方法。 I. INTRODUCTION An otologist is very interested in the measurement of the middle ear pressure, because it can be concluded that the eustachian tube function. Eustachian tubes balance the pressure between the middle ear and the atmosphere. Dysfunction creates a relative vacuum in the middle ear and catarrhal exudates appear, often in children. As hearing loss may have a significant impact on education, if untreated, it will become increasingly severe, resulting in permanent middle ear damage. Electroacoustic measurements of the middle ear pressure provide a simple, rapid and nondestructive method for the screening of pathology in the middle ear.