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一、概述在本控制系统中,被控制的物理量——光谱信号由传感器变成电信号。变成电信号的物理量通过过程输入装置转换成计算机能够接收的数字信息,然后送入计算机,计算机根据相应的数字模型进行各种运算。其结果由打印机直接输出。系统以DJS—041作主机,过程输入由JAS—22湿簧采样、程控277数据放大器、A/D转换及其接口电路组成。在A/D转换部件中设有与DJS—041机的接口控制电路,
First, an overview In this control system, the physical quantity to be controlled - the spectral signal from the sensor into an electrical signal. The physical quantities that become electric signals are converted into digital information that the computer can receive through the process input device, and then sent to the computer. The computer performs various operations according to the corresponding digital model. The result is output directly by the printer. System DJS-041 for the host, the process input from the wet spring sampling JAS-22, program-controlled 277 data amplifier, A / D converter and interface circuit. In the A / D conversion unit with DJS-041 machine interface control circuit,