农业机械学报2018，Vol.49Issue(2)：411-418,8.DOI:10.6041/j.issn.1000-1298.2018.02.053
棒状铁镓合金磁滞特性和功耗特性分析
Analysis of Hysteresis and Power Consumption Characteristics of Fe-Ga Rod Alloy
摘要
Abstract
Hysteresis and power consumption characteristics of Fe-Ga alloy is the basis of working efficiency study of magnetostrictive transducers.Based on hall effect and Faraday's law of electromagnetic induction,a set of automatic testing system for magnetic properties of magnetostrictive materials was designed.By using the automatic testing system,the magnetic hysteresis curve of Fe-Ga rod alloy was tested and analyzed under different magnetic field frequencies and magnetic induction intensities.And coercive force and remanence were increased when the magnetic field frequency and magnetic induction intensity were increased respectively.By the hysteresis curve of the same magnetic induction intensity under different magnetic field frequencies,electromagnetic losses and energy storage medium were calculated.Simultaneously,electromagnetic losses were separated into three main parts of hysteresis,eddy current and residual loss.It was found that when magnetic induction intensity was 1 725 mT and magnetic field frequency was increased from 30 Hz to 70 Hz,electromagnetic loss and energy storage medium were increased by 3.24 times and 1.96 times respectively as well as hysteresis,eddy current and residual losses which were separated by electromagnetic loss respectively were increased by 1.33 times,5.26 times and 7.35 times.The proportion of hysteresis loss was fallen from 56.87％ to 31.31％,the proportion of eddy current loss was risen from 32.98％ to 48.69％,and the proportion of residual loss remain unchanged.For the high-frequency working conditions of Fe-Ga gallon transducer,the treatment of slicing Fe-Ga rod alloy was made to reduce the eddy current loss and improve the efficiency of Fe-Ga gallon transducer.关键词
铁镓合金/磁滞特性/功耗特性/损耗分离Key words
Fe-Ga alloy/hysteresis characteristics/power consumption characteristics/segregation of losses分类
信息技术与安全科学引用本文复制引用
翁玲,曹晓宁,梁淑智,孙英,黄文美,王博文..棒状铁镓合金磁滞特性和功耗特性分析[J].农业机械学报,2018,49(2):411-418,8.基金项目
国家自然科学基金项目(51201055、51777053)、河北省高等学校科学技术研究重点项目(ZD2015085)、天津市高等学校科技发展基金计划项目(20140421)、河北省引进留学人员项目(CG2013003001)和教育部留学回国人员科研启动基金项目 （51201055、51777053）
