Thermal diffusivity measurements in organic liquids using transient thermal lens calorimetry | Zendy

C. V. Bindhu | Zendy

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Thermal diffusivity measurements in organic liquids using transient thermal lens calorimetry

Author(s) -

C. V. Bindhu

Publication year - 1998

Publication title -

optical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.357

H-Index - 105

eISSN - 1560-2303

pISSN - 0091-3286

DOI - 10.1117/1.601825

Subject(s) - thermal diffusivity , materials science , lens (geology) , laser , transient (computer programming) , optics , laser flash analysis , thermal , signal (programming language) , instrumentation (computer programming) , thermodynamics , physics , computer science , operating system , programming language

Thermal diffusivity measurements are carried out in certain organic liquids using the pulsed dual beam thermal lens technique. The 532 nm pulses from a frequency doubled Q-switched Nd:YAG laser are used as the heating source and an intensity stabilized He-Ne laser serves as the probe beam. Experimental determination of the character- istic time constant of the transient thermal lens signal is verified theoreti- cally. Measured thermal diffusivity values are in excellent agreement with literature values. © 1998 Society of Photo-Optical Instrumentation Engineers. (S0091-3286(98)00510-8)

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