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热词
    • 59. 发明授权
    • Hybrid digital-analog measurement and control system
    • 混合数字模拟测控系统
    • US4530065A
    • 1985-07-16
    • US476110
    • 1983-03-17
    • Curtis M. Huff
    • Curtis M. Huff
    • G01G23/37G06F3/05G06F15/46G05B7/00
    • G01G23/3707G06F3/05
    • A measurement and control system including a digital computer, a digital to analog converter for providing an analog data signal from digital data from the computer, a command sample and hold for holding the data analog signal as a control command signal, a measure sample and hold for holding an analog input signal indicative of a preselected variable, a measure comparator for comparing a series of analog outputs of the digital to analog with the held analog input and providing the comparison to the computer which calculates a measurement of the variable as a function of the comparisons. The output of the command sample and hold may be the system output or a command comparator may compare the output of the command sample and hold and the analog input to provide a system output signal.
    • 一种测量和控制系统,包括数字计算机,用于从来自计算机的数字数据提供模拟数据信号的数模转换器,用于保持数据模拟信号作为控制命令信号的指令采样和保持,测量采样和保持 用于保持指示预选变量的模拟输入信号;测量比较器,用于将数字模拟输出与模拟输入的一系列模拟输出与所保持的模拟输入进行比较,并将该比较与计算机相比较,该计算机计算变量的测量值作为 比较。 命令采样和保持的输出可以是系统输出,或者命令比较器可以比较命令采样和保持的输出和模拟输入以提供系统输出信号。