Time-resolved gas thermometry by laser-induced grating spectroscopy with a high-repetition rate laser system

Felix Förster; Cyril Crua; Martin Davy; Paul Ewart

doi:10.1007/s00348-017-2370-6

Time-resolved gas thermometry by laser-induced grating spectroscopy with a high-repetition rate laser system

Felix Förster, Cyril Crua, Martin Davy, Paul Ewart

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Abstract

Thermometry using laser-induced grating spectroscopy (LIGS) is reported using a high-repetition rate laser system, extending the technique to allow time-resolved measurements of gas dynamics. LIGS signals were generated using the second harmonic output at 532nm of a commercially available high-repetition rate Nd:YAG laser with nitrogen dioxide as molecular seed. Measurements at rates up to 10kHz were demonstrated under static cell conditions. Transient temperature changes of the same gas contained in a cell subjected to rapid compression by injection of gas were recorded at 1kHz to derive the temperature evolution of the compressed gas showing temperature changes of 50K on a time-scale of 0.1s with a measurement precision of 1.4%. The data showed good agreement with an analytical thermodynamic model of the compression process.

Original language	English
Journal	Experiments in Fluids
Volume	58
Issue number	87
DOIs	https://doi.org/10.1007/s00348-017-2370-6
Publication status	Published - 7 Jun 2017

Bibliographical note

© The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Cyril Crua
- Advanced Engineering Centre
- Centre for Regenerative Medicine and Devices
Person: Academic

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title = "Time-resolved gas thermometry by laser-induced grating spectroscopy with a high-repetition rate laser system",

abstract = "Thermometry using laser-induced grating spectroscopy (LIGS) is reported using a high-repetition rate laser system, extending the technique to allow time-resolved measurements of gas dynamics. LIGS signals were generated using the second harmonic output at 532nm of a commercially available high-repetition rate Nd:YAG laser with nitrogen dioxide as molecular seed. Measurements at rates up to 10kHz were demonstrated under static cell conditions. Transient temperature changes of the same gas contained in a cell subjected to rapid compression by injection of gas were recorded at 1kHz to derive the temperature evolution of the compressed gas showing temperature changes of 50K on a time-scale of 0.1s with a measurement precision of 1.4%. The data showed good agreement with an analytical thermodynamic model of the compression process.",

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AU - Crua, Cyril

AU - Davy, Martin

AU - Ewart, Paul

N1 - © The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Y1 - 2017/6/7

N2 - Thermometry using laser-induced grating spectroscopy (LIGS) is reported using a high-repetition rate laser system, extending the technique to allow time-resolved measurements of gas dynamics. LIGS signals were generated using the second harmonic output at 532nm of a commercially available high-repetition rate Nd:YAG laser with nitrogen dioxide as molecular seed. Measurements at rates up to 10kHz were demonstrated under static cell conditions. Transient temperature changes of the same gas contained in a cell subjected to rapid compression by injection of gas were recorded at 1kHz to derive the temperature evolution of the compressed gas showing temperature changes of 50K on a time-scale of 0.1s with a measurement precision of 1.4%. The data showed good agreement with an analytical thermodynamic model of the compression process.

AB - Thermometry using laser-induced grating spectroscopy (LIGS) is reported using a high-repetition rate laser system, extending the technique to allow time-resolved measurements of gas dynamics. LIGS signals were generated using the second harmonic output at 532nm of a commercially available high-repetition rate Nd:YAG laser with nitrogen dioxide as molecular seed. Measurements at rates up to 10kHz were demonstrated under static cell conditions. Transient temperature changes of the same gas contained in a cell subjected to rapid compression by injection of gas were recorded at 1kHz to derive the temperature evolution of the compressed gas showing temperature changes of 50K on a time-scale of 0.1s with a measurement precision of 1.4%. The data showed good agreement with an analytical thermodynamic model of the compression process.

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DO - 10.1007/s00348-017-2370-6

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JO - Experiments in Fluids

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SN - 0723-4864

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Time-resolved gas thermometry by laser-induced grating spectroscopy with a high-repetition rate laser system

Abstract

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