| 磁电式转速传感器的优化设计 |
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| 引用本文： | 徐光卫,宋春华. 磁电式转速传感器的优化设计[J]. 传感器与微系统, 2013, 32(2): 93-95 |
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| 作者姓名： | 徐光卫 宋春华 |
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| 作者单位： | 西华大学机械工程与自动化学院,四川成都,610039 |
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| 基金项目： | 四川省教育厅重点资助项目(11202015);四川省机械电子工程重点学科(西华大学)资助项目;四川省制造与自动化重点实验室(西华大学)资助项目(SZJJ2011—018) |
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| 摘 要： | 磁电式转速传感器在转速的测量中具有广泛的应用。在实际工程中,当转轴启动时往往会产生一个瞬时的高电压,从而对后续的信号处理电路产生一定的影响。针对上述问题,对原来具有整体圆环结构永磁体的磁电式转速传感器进行了研究。通过使用有限元分析软件Ansoft Maxwell建立具有8片瓦型永磁体结构、量程为20N.m的磁电式转速传感器模型并进行仿真。根据仿真结果得到一种启动时无瞬时高电压的20 N.m磁电式转速传感器的设计方案。同时,设计了磁电式转速传感器的信号处理电路,仿真结果表明:所设计的电路具有很好的实用性。
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| 关 键 词： | 磁电传感器 转速传感器 永磁体 有限元分析 信号处理 |
Optimization design on magnetoelectric rotational speed sensor |
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| XU Guang-wei , SONG Chun-hua. Optimization design on magnetoelectric rotational speed sensor[J]. Transducer and Microsystem Technology, 2013, 32(2): 93-95 |
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| Authors: | XU Guang-wei SONG Chun-hua |
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| Affiliation: | (School of Mechanical Engineering and Automation,Xihua University,Chengdu 610039,China) |
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| Abstract: | Magnetoelectric speed sensor is widely used in rotational speed measurement.In engineering practice,a transient high voltage appears when rotate axis starting,which has influence on subsequent signal processing circuit.Aiming at the above problem,magnetoelectric speed sensor which has an entirety circular ring structure is researched.Ansoft Maxwell is used to build a magneto-electric speed sensor model which has a structure of permanent magnet with eight-piece tile and measuring range 20N·m.A design proposal according to the simulation results is proposed.Meanwhile,the signal processing circuit is designed,and simulation results demonstrate that the designed circuit has good practical value. |
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| Keywords: | magnetoelectric sensor rotational speed sensor permanent magnet finite-element analysis(FEA) signal processing |
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