遠赤外線ヒータの分光放射特性の簡易評価方法

概要

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An useful method for a spectral evaluation of a radiation energy was developed for far infrared heaters. The system consists on a simple radiometer and two band-pass filters; vitreous Silica and Silicon, which have different transmission. Numerical simulations with Microsoft Excel made sure this method works well. The experimental data obtained by this method gave the fact that a far infrared type heater radiates enough energy in a far infrared region even at high temperature as much as a black body does. It means a far infrared type heater can work effectively enough at high temperature for industry heating. This method can classify a type of a heater with the ratio of a near infrared energy and a far infrared energy in practical use. By using this data, the authors also proposed a simple identification method of spectral emissivity of far infrared heater made of ceramics. This inverse method could determine approximated values for real heaters.