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本工作用耳声阻抗测定探头，在接口的长短和直径不同的条件下对等效声顺校正腔进行了实测和比较。当频率低于５００赫时阻抗探头电输出与声顺等效容积间的变化是单调函数关系，８００赫以上则呈“Ｖ”形。接口长短在０—５毫米和直径在１一２毫米范围内变化时，低频的校正误差最大可达０．４毫升，高频的误差更大。校正腔接口的长短和直径都以选用２毫米较为适宜。此外还对国内外五种不同的校正腔进行了比较。
This work with otolaryngeal impedance measurement probe, the interface length and diameter of the different conditions of the equivalent acoustic correction chamber were measured and compared. When the frequency is lower than 500 Hz, the impedance between the probe output and the sound-cis equivalent volume is a monotonic function, and above 800 Hz is a “V” shape. Interface length 0-5 mm and diameter changes in the range of 1 to 2 mm, the maximum low-frequency correction error up to 0.4 ml, high-frequency error greater. Correction cavity length and diameter of the interface to choose 2 mm is more appropriate. In addition, five different calibration chambers at home and abroad were compared.