Development of infrared nondestructive testing system with laser scanning automatic heat loading

Fengming Bai; Weina Liu; Li Ma; Ling Chen; Qianli Ma

doi:10.1117/12.318434

10 August 1998 Development of infrared nondestructive testing system with laser scanning automatic heat loading

Fengming Bai, Weina Liu, Li Ma, Ling Chen, Qianli Ma

Proceedings Volume 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II; (1998) https://doi.org/10.1117/12.318434
Event: Photonics China '98, 1998, Beijing, China

Abstract

Considering laser scanning technique, IR method and electronic technology, studied and design a set of IR NDT system with laser scanning automatic, heat loading method in this paper. To make use of this device, it may detect internal defects of metal material parts, such as micro- craze, refraction, blowholes, etc. This paper also introduce the work principal of testing system. It heats automatically pretreatly to workpiece with CO₂ laser scanning and through IR technique received temperature field from workpiece heat conduction. After the filter and the A/D converter system, the changed signal is sent into a single chip computer and the computer make it complete data analysis, data processing, save and display. Therefore, it can achieve detecting characteristic and property of internal defects of parts.

Citation Download Citation

Fengming Bai, Weina Liu, Li Ma, Ling Chen, and Qianli Ma "Development of infrared nondestructive testing system with laser scanning automatic heat loading", Proc. SPIE 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II, (10 August 1998); https://doi.org/10.1117/12.318434

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