Thermal diffusivity measurement using photoacoustic and thermal lens techniques

• Main Author: Chin, Fanny Yee Ju
• Format: Thesis
• Language: English; English
• Published: 2000
• Subjects: Thermal diffusivity - Measurements; Optoacoustic spectroscopy
• Online Access: http://psasir.upm.edu.my/id/eprint/9105/1/FSAS_2000_30%20IR.pdf; http://psasir.upm.edu.my/id/eprint/9105/

The open photoacoustic cell (OPC) technique was used for measuring thermal diffusivity of solid samples. It is based upon the measurement of the photoacoustic signal as a function of the modulation frequency in the region where the thermal diffusion length equals to the-sample thickness. The meas...