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Simulations of the accuracy of laser-flash data analysis methods show that thermal diffusivity can be recovered at an accuracy of 2 % and that the noise in the waveform recorded has a near 1 to 1 relationship with the data for the choice of parameters. An estimate of accuracy of measurements obtained on the in-house system can be directly deduced by observing the noise level on the experimental waveform. A slight upward shift of values, worse at 3000 K than 300 K and worse with increasing noise amplitude and loss, needs further investigation.

Additional information

Authors: OKSANEN M, JRC Ispra (IT);VOLCAN A, JRC Ispra (IT);FENICI P, JRC Ispra (IT);FABBRI L, Université Pierre et Marie Curie, Laboratoire d'Instrumentation, Paris (FR)
Bibliographic Reference: Paper presented: QNDE, 22nd Annual Review of Progress in Quantitative Nondestructive Evaluation, Seattle (US), July 30 - August 4, 1995
Availability: Available from (1) as Paper EN 39223 ORA
Record Number: 199511238 / Last updated on: 1995-10-13
Original language: en
Available languages: en
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