| 摘要 |
PURPOSE: An apparatus for monitoring a sapphire growth furnace is provided to detect the temperature of an upper surface of fused alumina and to easily determine the time when a seed begins to descend. CONSTITUTION: A head(10) includes two viewer pointers. A flange part(20) is mounted on each viewer pointer. A digital camera(50) is mounted on one side of the flange part and photographs the upper surface of fused alumina in a growth furnace. A thermometer(60) is mounted on the other side of the flange part and measures the temperature of the upper surface of the fused alumina. A control device(70) receives the image of the digital camera and the information of the thermometer and transmits them to an output device. |
