微机接口的技术-----外文翻译.doc
约10页DOC格式手机打开展开
微机接口的技术-----外文翻译,the technology of microcomputer interfacea microcomputer interface converts information between two forms. outside the microcomputer the information handled by ...
内容介绍
此文档由会员 wanli1988go 发布
The Technology Of Microcomputer Interface
A microcomputer interface converts information between two forms. Outside the microcomputer the information handled by an electronic system exists as a physical signal, but within the program, it is represented numerically. The function of any interface can be broken down into a number of operations which modify the data in some way, so that the process of conversion between the external and internal forms is carried out in a number of steps.Transducer often produce very small output requiring amplification, or they may generate signals in form that needs to be converted again before being handled by the rest of the system. For example, many transducers have variable resistance which must be converted to a voltage by a special circuit. This process of converting the transducer output into a voltage signal which can be connected to the rest of the system is called signal conditioning. the signal conditioning section translates the range of voltage or current signals from the transducer to one which can be converted to digital form by an analog-to-digital converter.
微机接口的技术
微机接口实现两种信息形式的交换。在计算机之外，由电子系统所处理的信息以一种物理信号形式存在，但在程序中，它是用数字表示的。任一接口的功能都可分为以某种形式进行数据库变换的一些操作，所以外部和内部形式的转换是由许多步骤完成的。微计算机和产生连续变化模拟信号的传感器之间的接口。传感器产生的信号常很小，需要放大，或者产生的信号和形式被系统的其他部分处理之前需要再次转换。举例来说，许多传感器具有电阻变化，这必须由一专门电路转换成电压。这种将传感器输出转换成电压信号，并与系统的其他电路相连接的过程，称为信号调理。信号调理部分将源自传感器的电压或电流信号范围转换成可用模拟-数字转换器变成数字形式的信号范围。
A microcomputer interface converts information between two forms. Outside the microcomputer the information handled by an electronic system exists as a physical signal, but within the program, it is represented numerically. The function of any interface can be broken down into a number of operations which modify the data in some way, so that the process of conversion between the external and internal forms is carried out in a number of steps.Transducer often produce very small output requiring amplification, or they may generate signals in form that needs to be converted again before being handled by the rest of the system. For example, many transducers have variable resistance which must be converted to a voltage by a special circuit. This process of converting the transducer output into a voltage signal which can be connected to the rest of the system is called signal conditioning. the signal conditioning section translates the range of voltage or current signals from the transducer to one which can be converted to digital form by an analog-to-digital converter.
微机接口的技术
微机接口实现两种信息形式的交换。在计算机之外，由电子系统所处理的信息以一种物理信号形式存在，但在程序中，它是用数字表示的。任一接口的功能都可分为以某种形式进行数据库变换的一些操作，所以外部和内部形式的转换是由许多步骤完成的。微计算机和产生连续变化模拟信号的传感器之间的接口。传感器产生的信号常很小，需要放大，或者产生的信号和形式被系统的其他部分处理之前需要再次转换。举例来说，许多传感器具有电阻变化，这必须由一专门电路转换成电压。这种将传感器输出转换成电压信号，并与系统的其他电路相连接的过程，称为信号调理。信号调理部分将源自传感器的电压或电流信号范围转换成可用模拟-数字转换器变成数字形式的信号范围。
