Temperature Measurement of Air Flow Using Fluorescent Mists Combined with Two-Color LIF

Temperature Measurement of Air Flow Using Fluorescent Mists Combined with Two-Color LIF

This study proposes a two-color laser-induced fluorescence (LIF) technique for measuring the temperature distribution of an airflow by spraying a mist of a fluorescent dye. The mist is generated by using propylene glycol, the vapor pressure of which is much lower than that of water, as the solvent of the fluorescent dyes. A supersonic moisture chamber is used as the atomizer for seeding the tra...

Simultaneous measurement of water flow velocity with fluorescent and speckle imaging technique

The average velocity of water flow has been simultaneously measured with fluorescent and speckle imaging methods. The measured velocities with two methods are in good agreement with each other and it confirms that the speckle imaging method can be used as a confident method to measure the velocity of water flow in a dry leaf. Also the velocity of water flow through thick and thin xylems of a le...

Measurement of neutral flow velocity in an ECR plasma using tunable diode laser LIF spectroscopy combined with saturated absorption spectroscopy

The radial flow of neutral particles in an electron-cyclotron-resonance (ECR) argon plasma has been measured by using a newly developed high resolution laser induced fluorescence (LIF) measurement system. The flow velocity is determined by the Doppler shift of the LIF spectrum. A very high accuracy calibration of an excitation laser has been achieved by installing a saturated absorption spectro...

Application of a Two-color Laser Induced Fluorescence (lif) Technique for Temperature Mapping

APPLICATION OF A TWO-COLOR LASER INDUCED FLUORESCENCE (LIF) TECHNIQUE FOR TEMPERATURE MAPPING H. J. Kim and K. D. Kihm* Department of Mechanical Engineering Texas A&M University College Station, Texas, 77843-3123 *E-mail: ken-kihm @tamu.edu, Homepage : [http://go.to/microlab] Tel. (979) 845-2143, Fax (979) 862-2418 Proceedings of 2001 ASME International Mechanical Engineering Congress and Expos...

Air-Solids Flow Measurement Using Electrostatic Techniques