A fast pyrometer with wide dynamic linearity for shock temperature measurements

LI Jia-bo; ZHOU Xian-ming; WANG Xiang

doi:10.11883/1001-1455(2009)06-0625-07

Volume 29 Issue 6

Sep. 2014

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LI Jia-bo, ZHOU Xian-ming, WANG Xiang. A fast pyrometer with wide dynamic linearity for shock temperature measurements[J]. Explosion And Shock Waves, 2009, 29(6): 625-631. doi: 10.11883/1001-1455(2009)06-0625-07

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LI Jia-bo, ZHOU Xian-ming, WANG Xiang. A fast pyrometer with wide dynamic linearity for shock temperature measurements[J]. Explosion And Shock Waves, 2009, 29(6): 625-631. doi: 10.11883/1001-1455(2009)06-0625-07

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A fast pyrometer with wide dynamic linearity for shock temperature measurements

doi: 10.11883/1001-1455(2009)06-0625-07

1.
National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China

Publish Date: 2009-11-25

Abstract

Abstract

By adopting linear-focused photomultiplier tubes (PMT), an eight-channel radiation pyrometer was developed for shock temperature measurements. The dynamic linearity in each channel of the pyrometer, using the developed voltage divider circuit, exceeds 8 mA at the work voltage of -800 V. The saturated light intensity is better than the level of 100 W and the response time is less than 3 ns. The relative uncertainties of spectral radiances, which are measured by the pyrometer, are about 3% .The pyrometer was successfully used to measure the radiance history and shock temperature within 50 kK.
- mechanics of explosion,
- shock temperature,
- photomultiplier tube,
- pyrometer,
- dynamic linearity

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