【摘要】 磁场测量技术是粒子加速器的核心技术之一，准确可靠的磁场测量数据可为磁铁准直安装、调试运行提供重要依据，确保束流品质。多极磁铁磁场谐波品质是影响束流输运的关键技术指标。针对传统绕制线圈几何尺寸及定位精度不高、测量重复性和稳定性难以控制等问题，该文提出一种基于印制电路板（PCB）技术制作一致性较高的谐波线圈方案，分别从谐波线圈测磁理论、PCB设计、机械结构设计等角度开展设计优化与系统实现，并搭建多极磁铁谐波磁场测量系统，进行绕制线圈与PCB线圈的实验测量比对。结果表明：与绕制谐波线圈相比，基于PCB方案的谐波线圈可实现更高的反抵率以及更为稳定、精确的磁场测量结果，验证了PCB谐波线圈在多极磁铁谐波磁场测量中的显著优势，可为国内PCB谐波线圈发展与工程应用提供参考。更多还原

【Abstract】 The magnetic field measurement technology is one of the core technologies of particle accelerators, and the harmonic field quality of multipole magnet is essential to beam transportation. The accurate and reliable magnetic field measurement data can provide important reference for installation,commissioning and operation of magnets for multi-purposes. Compared to relative lower positioning accuracy and repeatability by using traditional hand-wound coils, this paper introduces the design and implementation of a harmonic coil field measurement system based on printed circuit board(PCB)technology. The theory of harmonic field measurement, the design of PCB coil and mechanical support structure are described. A comparative study between the hand-wound coils and PCB coils are performed.The experimental results show that the PCB harmonic coils can achieve more stable and accurate magnetic field measurements with higher bucking rate, for harmonic magnetic fields measurement of multipole magnets. The research findings can provide a good reference for the design and development of harmonics field measurement coils based on PCB technique.更多还原