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一、引言为实现品体生长的自动化,避免人工控制因人而异的工艺因素,提高晶体质量和劳动生产率,自动控径技术受到了晶休生长工作者的普遍重视。南京大学首先用电子秤自动控径生长了YAG和LiNbO_3单晶,取得了全径差≤±1％的良好成果。我们在浮秤称重技术试验的基础上,开展了电子秤称重控径生长Nd:YAP的研究,实现了石墨电阻加热法晶体生长的直径自动控制,达到全重差≤±2％的控制效果(全径差为≤±1％)。
I. INTRODUCTION In order to automate the growth of objects and avoid manual control of technological factors that vary from person to person, and to improve the quality and labor productivity of the crystals, the automatic control technology has been generally valued by crystal-growth workers. Nanjing University first electronic scale automatic growth of YAG and LiNbO_3 single crystal, made full-size difference ≤ ± 1% of the good results. On the basis of the weigher test of the weigher, we carried out the research on the scale-controlled growth of Nd: YAP by electronic scale, realized the automatic control of the diameter of the crystal grown by the graphite resistance heating method, and achieved the control of full weight difference ≤ ± 2% Effect (full diameter difference ≤ ± 1%).