Measurement of unsteady gas temperature with optical fibre Fabry-Perot microsensors

We describe the application of thin-film optical fibre Fabry-Perot (FFP) microsensors to high-bandwidth measurement of unsteady total temperature in transonic gas flows. An aerodynamic probe containing two temperature sensitive FFP microsensors was deployed in the rotor exit flow region of a gas tur...

詳細記述

書誌詳細
主要な著者: Kilpatrick, J, Macpherson, W, Barton, J, Jones, J, Buttsworth, DR, Jones, T, Chana, K, Anderson, S
フォーマット: Journal article
言語:English
出版事項: 2002
その他の書誌記述
要約:We describe the application of thin-film optical fibre Fabry-Perot (FFP) microsensors to high-bandwidth measurement of unsteady total temperature in transonic gas flows. An aerodynamic probe containing two temperature sensitive FFP microsensors was deployed in the rotor exit flow region of a gas turbine research rig. Measurements reveal gas temperature oscillations typically 4 K peak to peak at the blade passing frequency of 10 kHz with components to the third harmonic detected in the power spectrum of the temperature signal.