问:什么是扫描仪?它由哪几部分组成? 答:扫描仪是一种光机电一体化的高科技产品,它是将各种形式的图象信息输入计算机的重要工具。一般来说,扫描仪包括扫描头、主板、机械结构、附件等4个部分。其中扫描头由线状CCD光电耦台器件组成,其精度直接影响扫描图象的还原逼真程度。扫描仪主板包括中央处理器、模数转换器、接口等部分,主要完成图象数据转换、与微机接口等功能,它控制扫描仪的整个工作过程。扫描仪有反射、透射两种工作方式,它们分别用于扫描一般照片和透明胶片。 Q: What is a scanner? Which part does it consist of? A: The scanner is an optomechanically integrated high-tech product that is an important tool for entering various forms of image information into a computer. In general, the scanner includes the scanner head, motherboard, mechanical structure, accessories and other four parts. The scanning head consists of a linear CCD optical coupler device, the accuracy of which directly affects the reproduction of the scanned image realistic degree. The scanner main board includes the central processing unit, the analog-digital converter, the interface and so on part, mainly completes the function such as the image data transformation, and the computer interface, it controls the entire work process of the scanner. The scanner has two modes of reflection and transmission, which are used for scanning general photos and transparencies respectively.