Temperature sensor based light reflection from a glass/liquid boundary

Kim D. Bennett; P. J. Spero

doi:10.1117/12.255353

25 October 1996 Temperature sensor based on light reflection from a glass/liquid boundary

Kim D. Bennett, P. J. Spero

Proceedings Volume 2839, Fiber Optic and Laser Sensors XIV; (1996) https://doi.org/10.1117/12.255353
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

A temperature sensor is constructed in which light strikes the boundary between a glass (BK7) corner cube reflector and a small volume of liquid (water). The liquid is contained in a metallic housing, which is bonded to a test structure. As the structure changes temperature, the indices of refraction of both the liquid and the glass vary, and the amount of light reflected out of the corner cube changes. A full three-dimensional vector analysis of the corner cube sensor is presented in conjunction with the Fresnel equations and the refractive index temperature dependence of both BK7 and water. Experimental results show the sensor output to be roughly linear with temperature for the range between 30 and 90 degrees Celsius.

Citation Download Citation

Kim D. Bennett and P. J. Spero "Temperature sensor based on light reflection from a glass/liquid boundary", Proc. SPIE 2839, Fiber Optic and Laser Sensors XIV, (25 October 1996); https://doi.org/10.1117/12.255353

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