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一、引言CCD线阵象传感器广泛用于传真,光符识别(OCR)、工业测量等办公室自动化(OA)和工厂自动化(FA)领域.尤其是作为读取传真原稿的光电变换器件正趋向实用化.最近,传真技术向高分辨率和高速方向迅速发展,从而对读取速度更快的多象素CCD线阵象传感器产生了迫切的需求.此外利用其高精度,高分辨特性,CCD还广泛用于工件尺寸、形状、厚度、位置及缺陷等的非接触式测量与检验.
I. INTRODUCTION CCD linear array image sensors are widely used in office automation (OA) and factory automation (FA) fields such as fax, optical character recognition (OCR), industrial measurement, etc. Especially, photoelectric conversion devices that read original documents are becoming practical Recently, facsimile technology has been rapidly developed in high resolution and high speed, which has created an urgent need for a multi-pixel CCD line image sensor that reads faster. In addition, with its high precision and high resolution characteristics, CCD Widely used in non-contact measurement and inspection of workpiece size, shape, thickness, location and defects.