Paper
10 August 1998 Optical measurement method of necking process in the material tensile test
Lizhong Zhang, Xueping Song, Guohua Cao, Zhenglin Yu
Author Affiliations +
Abstract
This paper puts forward a new method of optical real-time measurement in the necking process of material tensile test, including the change of the necking position and the necking value with the gradually applied load. Two dimension measurement is completed by the scanning of polygon mirror at the emitting end and the adoption of linear array TDI CCD components. The interference of stray light is restrained effectively because we use semiconductor laser as light source and optical filter at the receiving end. Furthermore, this paper deals with the correction method of non-uniform speed scanning beam at the receiving area, the factors effecting the ultimate measurement accuracy and the countermeasures.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lizhong Zhang, Xueping Song, Guohua Cao, and Zhenglin Yu "Optical measurement method of necking process in the material tensile test", Proc. SPIE 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II, (10 August 1998); https://doi.org/10.1117/12.318451
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Charge-coupled devices

Optical testing

Materials processing

Semiconductor lasers

Prisms

Measurement devices

Reflectors

RELATED CONTENT

Design of optical field polarization detection system
Proceedings of SPIE (December 19 2022)
Interferometric devices for angular measurements
Proceedings of SPIE (August 19 1996)
Study on measurement method of necking process
Proceedings of SPIE (February 10 2005)
New method for the measurement of aeroengine blade edge
Proceedings of SPIE (September 16 2002)

Back to Top