摘要
基于Mie光散射原理设计了一套以光纤传感器为前端,半导体激光器为光源和以光窗低温模拟靶为冷凝制样核心的光电检测装置,成功地对液体一氧化碳-液氮-石墨混合体系的冷凝-搅拌过程进行了实时监测,制备出均质的低温流体混合样品。根据实验曲线能较准确地预测该混合样品的暂稳态时间在5～6 min,基本上满足了冲击压缩实验的要求。
A set of photo-electronic measurer with some fibers, a semi-conductor laser and a cryo-simularive target as, respectively, a front sensor, light source and a sample condensed center has been developed based on the Mie's dispersion theory, and successfully applied to monitor a real time course in condensing -blending the CO-N_2-C system, and a uniform cryo-fluid mixed specimen has been prepared. The experimental curves indicated that the temporary steady state of the cryo-fluid sample can be kept up to 5～6 minutes, and suitable for the requirement of shock compression experiments on the whole.
出处
《四川大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第2期443-446,共4页
Journal of Sichuan University(Natural Science Edition)
基金
自然科学基金与中物院科学基金联合资助项目(10576020)
关键词
光纤传感器
低温液-固体混合
一氧化碳
液氮
石墨
fiber sensor
mixed cryo-liquid-solid
monoxide carbon
liquid nitrogen
graphite
