Abstract: Charge-coupled devices (CCDs) are novel semiconductor integrated optoelectronic devices developed in the early 1970s. They have now become a comprehensive technology integrating optics, electronics, precision mechanics, and computer technology. They are widely used in the fields of online inspection of various processed parts and high-precision, high-speed non-contact inspection. The application scope and advantages of CCD optoelectronic dimensional inspection instruments, composed of CCD image sensors, optical systems, and computer data acquisition and processing systems, are unmatched by existing mechanical, optical, and electromagnetic measuring instruments. This is closely related to their inherent high resolution, high sensitivity, strong pixel position information, compact structure, and self-scanning characteristics. In conclusion, CCD technology is a very promising technology.
Keywords: Charge-coupled device; Optical system; Data acquisition
1. Introduction
Inspection technology is a widely used field. It's applied to inspect various processed parts and moving objects in many industries to ensure product quality and safety in production and daily life. Traditional inspection methods include manual inspection and inspection using mechanical, optical, or electromagnetic instruments. Manual inspection, in particular, relies entirely on practical experience. If the component structure is complex, it not only increases the labor intensity for workers but also reduces accuracy and efficiency. It cannot achieve non-contact or online inspection and also increases the risks to workers. Therefore, with the rapid advancement of technology, a more perfect inspection technology is needed—that is, CCD technology.
Here, we will discuss CCD technology as an example of online non-contact inspection.
Details: Non-contact online inspection instrument based on CCD technology
