The method of heating the ceramic to make a far-infrared artificially is common.
The fine ceramics of an alumina system or a zirconium system are used well.
Wavelength and the emittance change by a kind and the heating temperature of ceramics.
The following of the table showing the radiation wavelength of a material is carried out.
|Radiating matter||Application product||Wavelength||Zone|
|Tungsten||Halogen lamp heater||1.0-2.5μm||Near-infrared|
|Silicon carbide||Glover||1.0-50μm||All zone Infrared|
|Ceramics||Panel heater||1.0-50μm||All zone Infrared|
|Carbon||Arc lamp, Carbon heater||2.0-25μm||Mid &Far Infrared|