A high-speed four-wavelength infrared pyrometer for low-temperature shock physics experiments

A. Seifter; K. Boboridis; J. R. Payton; A. W. Obst

doi:10.1117/12.571456

17 March 2005 A high-speed four-wavelength infrared pyrometer for low-temperature shock physics experiments

A. Seifter, K. Boboridis, J. R. Payton, A. W. Obst

Proceedings Volume 5580, 26th International Congress on High-Speed Photography and Photonics; (2005) https://doi.org/10.1117/12.571456
Event: 26th International Congress on High-Speed Photography and Photonics, 2004, Alexandria, Virginia, United States

Abstract

In addition to the standard problems associated with contactless temperature measurements, pyrometry in shock physics experiments has many additional concerns. These include background temperatures which are often higher than the substrate temperature, non-uniform sample temperature due to hotspots and ejecta, fast sample motion up to several km.s-1, fast-changing sample emissivity at shock breakout, and very short measurement times. We have designed a four channel, high speed near-infrared (NIR) pyrometer for measurements in the 400 to 1000K blackbody temperature range. The front end optics are specific to each experiment, utilizing preferably reflective optics in order to mitigate spectral dispersion. Next-generation instruments under development are also discussed.

Citation Download Citation

A. Seifter, K. Boboridis, J. R. Payton, and A. W. Obst "A high-speed four-wavelength infrared pyrometer for low-temperature shock physics experiments", Proc. SPIE 5580, 26th International Congress on High-Speed Photography and Photonics, (17 March 2005); https://doi.org/10.1117/12.571456

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