一种高准确度相位标准件研究  

Research on a high accuracy phase standard component

作　　者：盛永鑫[1] Sheng Yongxin(CETC No.38 Research Institute, Hefei 230031,China)

机构地区：[1]中国电子科技集团公司第38研究所

出　　处：《国外电子测量技术》2019年第5期120-122,共3页Foreign Electronic Measurement Technology

摘　　要：微波高准确度相位计量手段缺乏,不能适应全数字装备计量保障要求。为了解决该难题,基于光纤延迟原理,提出一种新型相位标准件设计思路,通过光纤延时精密连续可调技术、宽谱光的干涉测试技术研究,建立了基于光纤延迟的相位标准件。标准建立后,采用间接测量相位的方式进行了实验验证,利用电磁波相位和时间空间的对应关系,把相位测量转化为光程进行测量,然后采用白光迈克耳逊干涉技术来进行光程测量,进而获得相位变化量。在频率为4GHz时,以0延迟为参考,进行验证。实验结果表明,该标准件相位不确定度优于要求的0.2°,技术指标满足实际需求,设计方法可行。The lack of high accuracy phase measure methods can't fulfill the maintenance requirement of full digital equipment measurement. In order to solve this problem, this paper proposes a design idea of new phase standard component which based on the principle of fiber delay. Through the research of fiber delay precise continuous adjustment technology and wide spectrum light interference test technology, a phase standard based on fiber delay is established. Then, experimental verification is carried out by indirect measurement of phase. This method is converting phase to optical path for measurement by using the correspondence between electromagnetic wave phase and time space. White light Michelson interference technique is used for optical path measurement, and then obtaining the amount of phase change. When the frequency is 4 GHz, the verification is performed with reference to the 0 delay. The experimental results show that, the phase uncertainty of this standard component is better than the required 0. 2°. In summary, the technical specifications of this standard component meet the actual requirements, and the design method is feasible.

关 键 词：光纤延迟 相位 标准件 

分 类 号：TN0439[电子电信—物理电子学]