Temperature of shocked materials measured with an infrared pyrometer through a window

Eric Fribourg-Blanco; Christian Remiot; Jean-Marc Mexmain; Philippe J.L. Herve

doi:10.1117/12.243511

27 June 1996 Temperature of shocked materials measured with an infrared pyrometer through a window

Eric Fribourg-Blanco, Christian Remiot, Jean-Marc Mexmain, Philippe J.L. Herve

Proceedings Volume 2744, Infrared Technology and Applications XXII; (1996) https://doi.org/10.1117/12.243511
Event: Aerospace/Defense Sensing and Controls, 1996, Orlando, FL, United States

Abstract

We describe an experimental measurement technique which allows us to determine the interface temperature and the emissivity of shocked sample through window material (the lithium fluoride). We determine the temperature upon the partial release pressure of the sample. The infrared radiation emitted by the sample through the window material is collected and carried out to detectors by a four core fluoride glass optical fiber. The spectral bandwidth of this fiber is 1.5 micrometer to 4 micrometer. In order to deduce the temperature from the electrical signals amplified and recorded on a numerical oscilloscope, four narrow filters are used with different spectral bandwidth. A static calibration of the detectors with a black body is performed. Different ratios between static and dynamic measurements give access to the temperature as well as to the variation law of the emissivity versus wavelength. The shock generator for the dynamic experiment is an explosive plane wave generator. The shock pressure obtained is about 50 GPa. The purpose of this experimental measurement technique is the study of materials in solid phase as well as in liquid phase. Two samples have been studied, bismuth with solid- liquid transition at about 20 GPa and copper which remains solid in our pressure range.

Citation Download Citation

Eric Fribourg-Blanco, Christian Remiot, Jean-Marc Mexmain, and Philippe J.L. Herve "Temperature of shocked materials measured with an infrared pyrometer through a window", Proc. SPIE 2744, Infrared Technology and Applications XXII, (27 June 1996); https://doi.org/10.1117/12.243511

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