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2. Y. Okamoto, T. Ishii, Measurement of Radiosity Coefficient by Means of an Infrared Radiometer, Bull of Japan Soc. of Mech. Engng., Vol.57, 1991, No.534, P303
3. Detection of Surface Flaw by Infrared Radiometer;Okamoto,1988
4. Characteristic of Radiation Temperature and Radiosity Coefficient by Means of Infrared Radiometer;Okamoto;Bull of Japan Soc. of Mech. Engng.,1991
5. Surface Crack Detection by Infrared Radiometer;Okamoto;Bull of Japan Soc. of Mech. Engng.,1989