5 Result(s)
within
A. Hadj-Sahraoui
Measurement Science and Instrumentation
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Article
Photothermal investigations of phase transitions in liquid thermoelectrics
Two photothermal techniques, the photothermoelectric (PTE) and the photopyroelectric (PPE) were applied to detect first-order phase transitions in some liquid thermoelectric (LTE) material. Due to its large Se...
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Article
Photopyroelectric calorimetry of solids
An alternative photopyroelectric (PPE) technique that combines the front detection configuration (FPPE) with the thermal wave resonator cavity (TWRC) method is proposed. The theoretical analysis of the FPPE si...
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Article
Photopyroelectric measurement of thermal effusivity of liquids by sample's thickness scan
A method based on the sample's thickness scan of the amplitude of the photopyroelectric (PPE) signal is proposed as an alternative for thermal effusivity measurement of liquids. The proposed method uses a c...
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Article
Deux methodes photothermiques a l'etude d'une preparation de contact d'un melange binaire de cristaux liquides
The photopyroelectric (PPE) method is proposed as a sensitive technique to study a binary mixture of liquid crystals in a contact preparation. The photothermal signal is generated while scanning the contact pr...
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Article
Measurement of thermal diffusivity by the photoacoustic method
Analysis of the photoacoustic signalvs. the modulation frequency allows the determination of thermal diffusivity. Computer simulations have been carried out to determine the optimal conditions, in the case of rea...
