ABB CC系列模拟信号转换器；CC-E TC/I 0-1000/0-20mA

　　ABB CC系列模拟信号转换器；CC-E TC/I 0-1000℃/0-20mA

　　通信的数字化，就是要把模拟信号在传送之前先变成数字信号再传送，这个转变的过程叫做“模数

　　The digitalization of communication is to transform the analog signals into digital signals before transmission, which is called the "modulus".

　　变换”。模拟信号数字化有三个基本过程：个过程是“抽样”，就是以相等的间隔时间来抽取模拟

　　Change. There are three basic processes for analog signal digitization: the first process is "sampling", which is the extraction of simulation at equal intervals.

　　信号的样值，使连续的信号变成离散的信号。第二个过程叫“量化”，就是把抽取的样值变换为接近

　　A sample of a signal that makes a continuous signal a discrete signal. The second process is called "quantization", which transforms the sample value of the extraction to the closest.

　　的数字值，表示抽取样值的大小。第三个过程是“编码”，就是把量化的数值用一组二进制的数码来表

　　The number value is the size of the decimation value. The third process is "coding", which means to use a set of binary numbers for quantized values.

　　示。经过这样三个过程可以完成模拟信号的数字化，这种方法叫作“脉冲编码”。数字信号传送到接收

　　Show. Through these three processes, analog signals can be digitized. This method is called "pulse code". Digital signal transmission to reception

　　端后，需要有一个还原的过程，即把收到的数字信号再变回模拟信号，为接收者所能理解。这个过程叫

　　After the end, it is necessary to have a process to restore the received digital signal back to the analog signal for the receiver to understand. This process is called

　　作“数模变换”，使之再现为声音或图像

　　Make "digital transform" to make it sound or image