智能话路特性测试仪

An Intelligent Instrument for Testing the Characteristics of Speech Path

根据新型智能话路特性测试仪的工作原理及研制方法，在设计中采用了测试信号直接数字合成、快速量程转换、软件ｄｂｒ、自动自检等技术，使仪器具有高精度、智能化特点。

This paper presents the working principle and a research method of a new kind of intelligent instrument for testing the characteristics of speech path,and discusses the techniques that are adopted in the design,such as the technique of the direct digital synthesis of the testing signal;of fast range setting;of software dBr and of the automatic self test.The instrument has the characteristics of high accuracy and intellectualizing,and the capability of long distance measurement and the control through the tested speech path.