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在工业生产自动控制过程中，数字仪表应用十分广泛。它与不同的传感器配合使用，可对生产过程中的温度、压力、流量等数值进行测量，并直接以数字形式测出被测量的结果。目前，数字仪表可分为两大类：一类为普通型数字显示仪表；一类为智能型数字仪表。普通型数字显示仪表以其
In the industrial process of automatic control, digital instrumentation is widely used. It is used with different sensors to measure the temperature, pressure, flow rate and other values in the production process, and directly measure the measured result in digital form. At present, digital instruments can be divided into two categories: one for the ordinary type digital display instrument; one for the intelligent digital instrument. Ordinary digital display instrument with its