A Magnetic Ring Assembly Fixture for Terahertz Traveling Wave Tube Periodic Permanent Magnet System

Abstract

The invention discloses a magnetic ring assembly fixture for a terahertz traveling wave tube periodic permanent magnet system, which comprises a base, a lower pole shoe groove arranged on the base, and a lower magnet arranged in the lower pole shoe groove and coaxial with the lower pole shoe groove The ring groove, the lower copper wire groove set in the lower magnetic ring groove and coaxial with the lower magnetic ring groove, the upper cover arranged on the base, the upper pole shoe groove arranged on the upper cover, and the upper pole shoe groove And coaxial with the upper pole shoe groove magnetic ring groove and the upper copper wire groove which is arranged in the upper magnetic ring groove and coaxially arranged with the upper magnetic ring groove. The beneficial effects of the present invention are: the present invention can improve the positioning accuracy of the half-ring magnetic block, and is beneficial to overcome the repulsive force of the half-ring magnetic block, significantly improves the assembly process of the magnetic ring, and improves the operability and convenience of assembly , reduces the difficulty of assembly, saves manpower and time, improves the efficiency of the TWT magnetic ring assembly process, and effectively avoids safety risks and hidden dangers in the assembly process.

Description

technical field [0001] The invention relates to the technical field of magnetic ring assembly, in particular to a magnetic ring assembly fixture for a periodic permanent magnet system of a terahertz traveling wave tube. Background technique [0002] With the development of information technology and the explosive growth of information transmission, the original spectrum resources are becoming more and more difficult to meet the needs of our growing information development. In this case, people focus on higher frequency spectrum resources Above, terahertz (THz) waves came into being. Terahertz is the unit of frequency. According to customary definitions, electromagnetic waves with frequencies in the range of 0.1-10THz (wavelength 0.03-3mm) are generally referred to as terahertz waves. Due to the narrow beam, good directivity, strong anti-interference ability, strong penetrating power and no ionizing radiation, the terahertz beam has great potential in the fields of material ...

AI Technical Summary

Problems solved by technology

Due to the irregular structure, small size and limited space of the periodic permanent magnet system, most of the current magnetic ring assembly is manual direct assembly, which is inefficient and inconvenient

[0005] In the existing technology, when the magnetic ring is assembled, the whole magnetic ring is disassembled into two halves after magnetization, and the two halves of the magnetic ring are pressed into the gap between the pole shoes manually, and then the copper wire is wound on it and fixed, and the magnetic ring is fully charged. The axial magnetic induction intensity after magnetization is about 0.5T. To press two such strong magnetic field magnets together, it needs to overcome a very large magnetic field repulsion force. In addition, the thickness of the magnetic ring is only 2.5mm, and the pressing space is only enough for 2 fingers. It is also necessary to fix the copper wire with one hand. The whole assembly process is very laborious and time-consuming, and it is extremely inconvenient. During the assembly operation, the magnetic ring often flies out under the action of repulsion, which poses a safety hazard.

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