Research on multifunction measurement device by laser diffraction

He Ma; Jian-Hua Yu; Cheng-Jun Wang; Hu-Chun Liu

doi:10.1117/12.156372

22 September 1993 Research on multifunction measurement device by laser diffraction

He Ma, Jian-Hua Yu, Cheng-Jun Wang, Hu-Chun Liu

Proceedings Volume 2101, Measurement Technology and Intelligent Instruments; (1993) https://doi.org/10.1117/12.156372
Event: Measurement Technology and Intelligent Instruments, 1993, Wuhan, China

Abstract

The measuring device by laser diffraction is described, It is used for measuring the Mean Spacing Sm of the Profile Irregularities, the Mean Spacing S of Local Peak of the Profile both are the parameters of the surface roughness standard, the feed rate f, the diameter of filament and the thickness of thin slice. Non-contact or on-line measurement could be realized by means of this device for measuring all parameters mentioned above (except thickness of thin slice). The device is characterized by adopting a diverging lens to expand the diffraction pattern, measuring and reading the separation of diffraction fringes using an electronic vernier calipers with numerical reading, thus reaching the purpose of measurement by means of lower precision electronic vernier calipers with numerical reading to deal with higher precision measurement.

Citation Download Citation

He Ma, Jian-Hua Yu, Cheng-Jun Wang, and Hu-Chun Liu "Research on multifunction measurement device by laser diffraction", Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); https://doi.org/10.1117/12.156372

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