| 摘要 |
PURPOSE:To increase heat exchange property and to shorten heating time and also, to improve accuracy accompanied by it, by standing four heaters on the outside of a reaction tube and providing a thick cylindrical image furnace surrounding its outside. CONSTITUTION:Four heaters 10 are stood on the outside of a reaction tube 8 and an image furnace 11 consisting of a thick cylindrical aluminum block surrounding the outside of the heater 10, and provides the inner face of the aluminum block as a reflex mirror face 12. By such a constitution, heating time is shortened and measurement accuracy is improved by a decrease of the quantity of heat leakage accompanied by it, because heat exchange property can be increased. |
