Doppler Laser Interferometry And Low Expansion Materials - A Merging Of Technologies

Robert F. Karlak; Dave F Hotz; Alan K Haas

doi:10.1117/12.951296

11 July 1989 Doppler Laser Interferometry And Low Expansion Materials - A Merging Of Technologies

Robert F. Karlak, Dave F Hotz, Alan K Haas

Proceedings Volume 1044, Optomechanical Design of Laser Transmitters and Receivers; (1989) https://doi.org/10.1117/12.951296
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

An extremely sensitive, accurate, and versatile extensometer has been demonstrated for measuring minute thermally induced dimensional changes in large structures fabricated from materials with a near-zero, but difficult to predict, coefficient of thermal expansion (CTE) -such as laminated graphite-epoxy composites. The method employs a commercially available Doppler laser interferometer designed for extremely accurate translation measurements in large machine tools. Operation of the laser device is described together with the special precautions required, and results of thermally cycling a near-zero CTE graphite-epoxy I-beam.

Citation Download Citation

Robert F. Karlak, Dave F Hotz, and Alan K Haas "Doppler Laser Interferometry And Low Expansion Materials - A Merging Of Technologies", Proc. SPIE 1044, Optomechanical Design of Laser Transmitters and Receivers, (11 July 1989); https://doi.org/10.1117/12.951296

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