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提出了一种由螺旋线慢波结构热分布特性来获知其夹持性能的方法.设计了基于光纤光栅和热电偶的分布式温度测试平台,计算和分析了光纤光栅等测温元件对慢波结构散热特性的影响.搭建了实验系统,研制了分布式微型光纤光栅温度传感阵列,并对某型X波段行波管慢波结构进行对比测试.结果表明,实验获得的温差曲线可准确判别慢波结构夹持性能的优劣,且不破坏器件结构与性能.
A method of obtaining the holding performance by the distribution of the helical slow wave structure is proposed.The distributed temperature measurement platform based on fiber grating and thermocouple is designed and the temperature measurement components such as fiber grating are calculated and analyzed. And the thermal performance of the structure was analyzed.The experimental system was built and the distributed micro-fiber grating temperature sensing array was developed.The comparison of the structure of a certain type of TWTWS was carried out.The results show that the temperature difference curve obtained by the experiment can be accurately discriminated The advantages and disadvantages of the slow wave structure clamping performance, and does not damage the device structure and performance.