TY JOUR TI PROVIDING OF ISOTHERMAL CONDITIONS OF CALIBRATING DEVICE EMITTER FOR THERMOVISION CAMERA KW isothermal surface KW free convection KW calibration KW thermovision camera JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Korablev, V.A. AU Minkin, D.A. AU Sharkov, A.V. PY 2014 IS 2014 PB Saint-Petersburg University of State Fire Service of Emercom of Russia