传感技术学报2017，Vol.30Issue(9)：1330-1334,5.DOI:10.3969/j.issn.1004-1699.2017.09.005
带磁芯励磁线圈的阻抗匹配
Impedance Matching of Magnetic CoreExcitation Coil
摘要
Abstract
Impedance matching of magnetic core excitation coil is the basis for the design and application of magnetos-trictive devices. In order to make the excitation coil produce a larger magnetic field,the B-H and u-H curves of the silicon steel sheet of the coil core material are tested at different frequencies using the AMH-1M-S magnetic charac-teristic test system. At the same time,the complex impedance of the magnetic field coil is calculated. According to the principle of series resonant circuit,the capacitance value of circuit resonance is calculated theoretically. The experi-mental platform is set up. The impedance of the circuit before and after the series matching capacitor is calculated by using the oscilloscope to collect the power supply voltage and the value of the series resistance voltage in the circuit. The experimental results show that the total impedance of the excitation coil decreases by 48. 95%, 61. 34% and 60.06% respectively,and the excitation current increases by 95.88%and 158.62,150.38%respectively when the exci-tation current is 50 Hz,100 Hz and 150 Hz.关键词
带磁芯励磁线圈/复数磁导率/串联谐振/阻抗匹配Key words
magnetic core excitation coil/complex permeability/series resonant circuit/impedance matching分类
信息技术与安全科学引用本文复制引用
翁玲,曹晓宁,徐行,梁淑智,黄文美,孙英,王博文..带磁芯励磁线圈的阻抗匹配[J].传感技术学报,2017,30(9):1330-1334,5.基金项目
国家自然科学基金项目( 51201055) （ 51201055）
河北省高等学校科学技术研究重点项目( ZD2015085) （ ZD2015085）
天津市高等学校科技发展基金项目( 20140421) （ 20140421）
教育部留学归国人员启动基金和河北省引进留学人员项目( CG2013003001) （ CG2013003001）
