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一、前言在新机研制和生产过程中,必须进行一系列科学试验,以便获得进行设计和考核产品性能所必需的大量试验数据。以计算机为中心的实时控制系统不仅能解决大量科学实验的数据采集处理,而且能对试验进行闭环控制,从而实现了飞机、发动机等试验过程的自动化。数据放大器是该系统中用以将采样器来的低电平脉冲信号放大到±5V,以便供给高电平
I. Preface A series of scientific experiments must be conducted during the development and production of new aircraft in order to obtain a large amount of experimental data necessary for designing and evaluating the performance of the products. The computer-based real-time control system can not only solve the data acquisition and processing of a large number of scientific experiments, but also can carry out closed-loop control of the test, so as to automate the testing process of the aircraft and the engine. The data amplifier is used to amplify the low level pulse signal from the sampler to ± 5V in the system so as to supply high level