Exploiting potentialities of linear CCD arrays in real-time dynamic measurement

Changgui Li; Jinghai Liu; Youna Lin; Zhiyong Sun

doi:10.1117/12.318408

10 August 1998 Exploiting potentialities of linear CCD arrays in real-time dynamic measurement

Changgui Li, Jinghai Liu, Youna Lin, Zhiyong Sun

Proceedings Volume 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II; (1998) https://doi.org/10.1117/12.318408
Event: Photonics China '98, 1998, Beijing, China

Abstract

It is well known that linear CCD arrays have many advantages in static measurement, but many problems exist in dynamic measurement. For example, frequency bandwidth of an optical signal that can be tested is narrow and precision of sampled values is low in the case of continuous laser used as light source for a specific linear CCD array now available. So a method in which pulse laser is used is given to solve the problems. Not only precision of sampled values is improved, frequency bandwidth of an optical signal that can be tested is also extended. Potentialities of the specific linear CCD array now available is fully exploited. In this paper, how to make pulse laser and how to design electric circuits of a linear CCD array are discussed. The key step is how to synchronize them. Then, the sampling of placement signals using linear CCD array is compared with the sampling of voltage signals using A/D converters in concept. This would give us more clear image on comprehending the important role of pulse laser. At last, dynamic range of linear CCD arrays and some problems needing solving are discussed.

Citation Download Citation

Changgui Li, Jinghai Liu, Youna Lin, and Zhiyong Sun "Exploiting potentialities of linear CCD arrays in real-time dynamic measurement", Proc. SPIE 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II, (10 August 1998); https://doi.org/10.1117/12.318408

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available