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

James M Kilpatrick; W. N. Macpherson; J. S. Barton; J. D C Jones; D. R. Buttsworth; T. V. Jones; K. S. Chana; S. J. Anderson

doi:10.1088/0957-0233/13/5/308

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

James M Kilpatrick, W. N. Macpherson, J. S. Barton, J. D C Jones, D. R. Buttsworth, T. V. Jones, K. S. Chana, S. J. Anderson

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	706-712
Number of pages	7
Journal	Measurement Science and Technology
Volume	13
Issue number	5
DOIs	https://doi.org/10.1088/0957-0233/13/5/308
Publication status	Published - May 2002

Keywords

Fabry-Perot cavity
Gas temperature
Gas turbine
Optical fibre sensor
Turbomachinery
Unsteady temperature

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10.1088/0957-0233/13/5/308

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title = "Measurement of unsteady gas temperature with optical fibre Fabry-Perot microsensors",

abstract = "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.",

keywords = "Fabry-Perot cavity, Gas temperature, Gas turbine, Optical fibre sensor, Turbomachinery, Unsteady temperature",

author = "Kilpatrick, {James M} and Macpherson, {W. N.} and Barton, {J. S.} and Jones, {J. D C} and Buttsworth, {D. R.} and Jones, {T. V.} and Chana, {K. S.} and Anderson, {S. J.}",

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journal = "Measurement Science and Technology",

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T1 - Measurement of unsteady gas temperature with optical fibre Fabry-Perot microsensors

AU - Kilpatrick, James M

AU - Macpherson, W. N.

AU - Barton, J. S.

AU - Jones, J. D C

AU - Buttsworth, D. R.

AU - Jones, T. V.

AU - Chana, K. S.

AU - Anderson, S. J.

PY - 2002/5

Y1 - 2002/5

N2 - 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.

AB - 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.

KW - Fabry-Perot cavity

KW - Gas temperature

KW - Gas turbine

KW - Optical fibre sensor

KW - Turbomachinery

KW - Unsteady temperature

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U2 - 10.1088/0957-0233/13/5/308

DO - 10.1088/0957-0233/13/5/308

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SN - 0957-0233

VL - 13

SP - 706

EP - 712

JO - Measurement Science and Technology

JF - Measurement Science and Technology

IS - 5

ER -

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

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Keywords

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