计量学报2018，Vol.39Issue(3)：431-435,5.DOI:10.3969/j.issn.1000-1158.2018.03.29
衰荡光腔温度控制研究
Study on Temperature Control for Ring-down Cavity
摘要
Abstract
A temperature control system for ring-down cavity is developed.The temperature control box with silicone heating plate on the inner wall is designed firstly,which the ring-down cavity is placed in.The internal temperature distribution is simulated.The finite element analysis and parametric scanning are carried out to get the optimized distribution and power of the heating plate to ensure the temperature uniformity along the light-transmitting part of the cavity.According to the simulation results,the actual box and heating plate are fabricated.Then,the hardware circuit system including temperature sampling module,control module and drive circuit module are designed with PID control algorithm as the core,and the corresponding control algorithm is developed to precisely control the cavity temperature change.After the precision temperature control system is completed,the standard deviation of the temperature variation along the light-transmitting part of the ring-down cavity is less than 0.01 ℃ in 8 hours.关键词
计量学/光腔衰荡光谱/温度控制/有限元分析/PID控制Key words
metrology/cavity ring-down spectroscopy/temperature control/finite element analysis/PID control分类
通用工业技术引用本文复制引用
曹珂,梁超群,郭瑞民,张桂春,邢素霞,赵玉祥..衰荡光腔温度控制研究[J].计量学报,2018,39(3):431-435,5.基金项目
国家重点研发计划专项(2016YFF0200305) （2016YFF0200305）
