Optical System Design For Automated Thermal Expansion Measurements

E. G. Wolff

doi:10.1117/12.960414

16 June 1986 Optical System Design For Automated Thermal Expansion Measurements

E. G. Wolff

Proceedings Volume 0613, Nonlinear Optics and Applications; (1986) https://doi.org/10.1117/12.960414
Event: O-E/LASE'86 Symposium, 1986, Los Angeles, CA, United States

Abstract

Thermally induced distortions are of interest for many materials, components and structures used in astronomy, aerospace systems, metrology and the optics industry. Optical interference pattern analysis offers the best hope for precise information on dimensional changes of less than a micron. This paper reviews the various optical approaches to linear thermal expansion measurements. Emphasis is placed on the Michelson interferometer because of its versatility for making contactless measurements in real time and the elimination of sample shape or size constraints. The use of composite materials in optical support structures is a driving force in the utilization of improved optical systems for thermal distor-tion measurements. Auxiliary capabilities therefore include fast response, (e.g., for opto-acoustic emission analysis), long term stability (for creep effects), multi-dimensional changes (holography), automatic control of sample position and computer aided data acquisition and analysis.

Citation Download Citation

E. G. Wolff "Optical System Design For Automated Thermal Expansion Measurements", Proc. SPIE 0613, Nonlinear Optics and Applications, (16 June 1986); https://doi.org/10.1117/12.960414

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