In order to improve the characteristics of a conventional moving coil permanent magnet linear motor (MCPMLM), such as weak points on export force, response time, response speed, we studied a permanent magnet (PM) structure that is a key component of MCPMLM. Different magnetization techniques of single PM and different array structures of multiple PMs are compared, and a new MCPMLM magnetized along the external field force lines using eight pieces of a tegular Halbach magnet array with air gaps is proposed as well. The analysis on magnetic field and experimental results of MCPMLM demonstrates that the force between the coil and the PM increases by more than 40%. The simulation frequency is close to 350 Hz at -3 dB, and the response time is 0.005 s. In addition, the experiment frequency reaches 300 Hz at -3 dB and the response time is 0.004 s, which agrees well with the simulation results. It means that the developed MCPMLM enjoys advantages in high frequency and rapid response, and ca...

以日本ＫＹＢ工业株式会社会生产的ＭＫ动圈式全电反馈伺服阀为例，了动圈式全电反馈伺服阀的特点，详细描述了动圈式全电反馈伺服阀的测试方法以及自动检测系统的原理，并给出了利用该自动检测系统对ＭＫ阀的测试结果。

张罗涛为提高电液比例阀控制技术的应用范围，提出一种新型结构的电液比例阀，其驱动部分采用动圈式电机械转换器。阐述了动圈式电机械转换器驱动的电液比例阀的工作机制，对其静态特性进行了分析研究，并通过试验进行了静态特性测试。结果表明：动圈式电机械转换器驱动的电液比例阀结构合理，其静态特性指标基本满意，对进一步研究动圈式电机械转换器驱动的电液比例阀有参考价值。对研究新型电液比例阀有积极意义。