Infrared thermal velocimetry

Jaewon Chung; Youngshik Shin; Kenneth Petigrew; Peter Chapman; Costas P. Grigoropoulos; Ralph Greif

doi:10.1063/1.1569397

Infrared thermal velocimetry

Jaewon Chung, Youngshik Shin, Kenneth Petigrew, Peter Chapman, Costas P. Grigoropoulos, Ralph Greif

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

Abstract

Infrared thermal velocimetry is a new technique for the measurement of flow velocity. This non-intrusive technique was used to measure the velocity in a channel. In detail, a pulse of several milliseconds of a 5W CO₂ laser generates a transient temperature response in a flowing liquid. Recording the radiative thermal images of the moving heated liquid, permitted measurement of the flow velocity. This method has powerful characteristics; a wide range of velocities may be measured and the applications include MEMS fluidic devices. In this paper, experimental results are obtained from infrared thermal velocimetry for a syringe forced flow. Numerical results for the system are presented and compared with experimental data. Phenomena which are relevant to typical MEMS thermal flow sensors are also discussed.

Original language	English
Pages (from-to)	329-333
Number of pages	5
Journal	American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume	369
Issue number	7
DOIs	https://doi.org/10.1063/1.1569397
Publication status	Published - 2001 Jan 1
Externally published	Yes

Keywords

Fluidic MEMS
Infrared thermal velocimetry
Micro-DPIV
Thermal flow sensor

ASJC Scopus subject areas

Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1063/1.1569397

Cite this

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abstract = "Infrared thermal velocimetry is a new technique for the measurement of flow velocity. This non-intrusive technique was used to measure the velocity in a channel. In detail, a pulse of several milliseconds of a 5W CO2 laser generates a transient temperature response in a flowing liquid. Recording the radiative thermal images of the moving heated liquid, permitted measurement of the flow velocity. This method has powerful characteristics; a wide range of velocities may be measured and the applications include MEMS fluidic devices. In this paper, experimental results are obtained from infrared thermal velocimetry for a syringe forced flow. Numerical results for the system are presented and compared with experimental data. Phenomena which are relevant to typical MEMS thermal flow sensors are also discussed.",

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AU - Chung, Jaewon

AU - Shin, Youngshik

AU - Petigrew, Kenneth

AU - Chapman, Peter

AU - Grigoropoulos, Costas P.

AU - Greif, Ralph

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AB - Infrared thermal velocimetry is a new technique for the measurement of flow velocity. This non-intrusive technique was used to measure the velocity in a channel. In detail, a pulse of several milliseconds of a 5W CO2 laser generates a transient temperature response in a flowing liquid. Recording the radiative thermal images of the moving heated liquid, permitted measurement of the flow velocity. This method has powerful characteristics; a wide range of velocities may be measured and the applications include MEMS fluidic devices. In this paper, experimental results are obtained from infrared thermal velocimetry for a syringe forced flow. Numerical results for the system are presented and compared with experimental data. Phenomena which are relevant to typical MEMS thermal flow sensors are also discussed.

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Infrared thermal velocimetry

Abstract

Keywords

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