摘要
本文介绍了一台针对回转式室温磁制冷机设计的永磁体,详述了永磁体的结构以及高场强永磁体设计对于室温磁制冷机研究的意义,并对该永磁体进行了简单的数值计算和实验研究。实验结果显示:在永磁体工作气隙为30mm时,其工作中心区域场强可达1.45T,计算结果与实验数据大致相吻合。在实验室条件下,该永磁体可满足用于研究稀土金属Gd作为磁工质的回转式室温磁制冷机的初步要求。
A special shape permanent-magnet was designed and fabricated for the rotary room-temperature magnetic refrigerator, and the numerical calculation as well as experimental investigation to this certain magnet was introduced in brief. The field strength of the permanent magnet was measured by Gauss meter, and the point was got that the field strength in the center of working air-gap is up to 1.45T, which can meet the need to verify the magnetocaloric effect and be used in the rotary room-temperature magnetic refrigerator in laboratory.
出处
《金属功能材料》
CAS
2007年第5期8-11,共4页
Metallic Functional Materials
关键词
磁热效应
永磁体
回转式室温磁制冷机
磁场强度
magnetocaloric effect
permanent magnet
rotary room-temperature magnetic refrigerator
field strength
