Economical Linear CCD System Module

Introduction

Because of the need in precision measurements, AOI (Automatic Optical Inspection) technology is thought of the main technology for many quality control and precision measurements. In Taiwan, most AOI plants were expensive and hard to integrate with the other manufacturing machines. This high resolution linear CCD module can make AOI technology possibly to integrated with the other manufacturing machines, so that the measurement and the quality control can be integrated in one single machine to reduce the cost.

Economical linear CCD system module function block.

Economical linear CCD system module prototype.

Technology

Linear CCD sensor circuit design
USB 2.0 data transmission
CPLD firm ware design

Specification

Pixel clock frequency: 4MHz (max)
Sensing length: 218 mm (A4 size)
Pixel size: 11 µm × 26.5 µm
Resolution: 1200 dots/inch
Interface: USB 2.0

Performance Characteristics

Data output frequency: 4MHz (max)
Testing image size: 10320 (pixels) × 2000 (line)
Image transmission time: 23578 msec
Image file size: 19.5 MB (BMP format)

Application

Mechanical Engineering, Biomedical Engineering, Optical Inspection