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预先测定咽鼓管通气功能状态,对预防在气压变化环境中作业人员的耳气压伤有重要意义。本文就新近研制的一台咽鼓管通气功能测试仪的微处理机镶嵌系统作一介绍。该系统用来完成测试数据的自动处理,并直接显示有关参数,节省人力,可提高效率和精度。一、原理与方法声管测试技术测定咽鼓管通气功能的原理,是根据声波在咽鼓管内传播的强度变化情况,间接地评价咽鼓管的通气功能。从
Predetermined Eustachian tube ventilation function status, to prevent pressure changes in the environment of the operator’s ear pressure injury is important. In this paper, a newly developed microphysical mosaics system for Eustachian tube ventilation function tester is introduced. The system is used to complete the automatic processing of test data, and directly display the relevant parameters, saving manpower, can improve efficiency and accuracy. First, the principle and method of acoustic tube test Eustachian tube ventilation function of the principle is based on the sound wave propagation in the eustachian tube intensity changes, indirect evaluation Eustachian tube ventilation function. From