Engineering Physics Annotation << Back The analysis of an error of definition thermophysical characteristics of constructional materials a pulse method at final duration of an impulse of a laser beam G.V. Kuznecov, M.D. Kats The problem about a non-stationary temperature field of the sample of a material is numerically solved at influence on its surface of a homogeneous thermal impulse of final time extent. The estimation of scales of errors of definition thermophysical characteristics material by the pulse method, connected with the assumption of infinitesimal time duration of action of a laser impulse and absence of heat exchange on borders is spent. Keywords: Thermophysical characteristics, pulse method, truncation error, thermal diffusivity, specific heat capacity, heat conductivity. E-mail: katz@tpu.ru