In chapter 1 , the magnetostrictive mechanism of the giant magnetostrictive materials and the main features of the materials are introduced briefly , and the research background including the materials applications in abroad and home is given . furthermore , the problems existing in the update applications are pointed out . especially the various applications of the magnetostrictive material in fluid power - transmission and control are also introduced 本文从超磁致伸缩材料的主要特点及其应用概况出发，以国产的超磁致伸缩材料为基础，进行了超磁致伸缩电?机械转换器的结构及在流体控制元件中应用的研究，探讨了超磁致伸缩电?机械转换器常用的热补偿方法，并结合流体控制元件的具体特点，采用热补偿管进行热补偿。
Series full - auto pipe expander with drawing device and program interface is used with extruding machine . it is also used solitarily , while expanding pipes , the machine adopts translation , the action is steady and corret , it does not damage pipe materical , the machine adoptes double - infrared heating oven type , each oven is equipped with heating cire , the shaping method adopts expanding - end shaping , the size of pipe mouth is correct . on its panel , there is a transfer swith of expanding solvent type pipe socket ( straigh port ) and expanding sealloop type pipe socket ( rport ) . the choice of expanding pipe type is very convenient , the technologocal adaptability is strong , its main electric control elements are all imported . the syetem charecteristics are steady and reliable 配有与主机配套的接料牵引装置和相应的程序接口，既能与挤管主机联线使用，又可以作单机使用；扩管时管材的移动均采用平移方式，动作平稳准确而且不易损伤管材；这种机型采用红外线加热方式且为双加热炉型，每个加热炉都配有中心加热炉芯；成型方式均采用扩管头定型方式，管口成型尺寸准确；该机型在控制面板上设有扩溶剂型承接口（直口）和扩弹性密封圈型承接口（ r口）的转换开关，扩管方式选择十分方便，工艺适应性强；主要的电器控制元件均采用进口元件，系统性能稳定可靠。
We analyzed the dependence of equivalent circuit parameters of mesfet switch on material and device structure . for modeling , we designed and fabricated six set of mesfet switches with different gate width , then measured their performance and extracted switch model parameters . mesfet switch database corresponding to the mmic product line is then established , and using the dependence of switch model parameters on gate peripheral we can attain the mesfet switch performance with any gate width through parameters scaling 移相器电路采用gaasmesfet开关作为控制元件，研究了mesfet开关等效电路参数与材料和器件结构参数的关系，设计制作了不同栅宽的六组mesfet开关，并进行参数测试和模型参数提取，建立了相应于mmic工艺线的mesfet开关模型库；根据开关模型参数随栅宽的变化规律，可以实现任意栅宽mesfet开关的参数定标工作。
This computer control system has referenced foreign advanced technology . the automation degree and control precision has been greatly improved because using of high precision component and advanced control arithmetic . this project would contribute to our country ' s wide heat - setting equipment 本课题研制的热定型机计算机控制系统，参考了国外先进的热定型机控制技术，应用了高精度的控制元件和先进的控制算法，能在很大程度上提高热定型机的自动化程度和控制精度。
Through analysis to the performance of er valve under real work state using simulation and experiment , we can conclude that using er valve as fluid control - unit would improve the response speed of system , simplify the control method and have a better controllability to actuators . then the feasibility of er technology applied to hydraulic control system is proved 在实际工作状态下对电流变阀的工作特性进行了研究，通过仿真和实验分析得出：使用电流变阀作为流体控制元件，能提高系统的响应速度，简化控制方法，对执行元件具有较好的可控性，验证了电流变技术用于液压控制系统的可行性。
The last part concludes that mr dampers is one of the very attractive control elements in semi - active control . as one of mixed model mr dampers , armature piston ' s mr dampers have principle designs good function and better practical value , it ' s worth to popularize use . about the armature piston ' s mr damper ' s designs , the space of work , the diameter of wok and the length of magnetic pole have obvious affects to the force of mr dampers , mr fluid materials should be paid attention , input electric current affects mr dampers greatly the high current increases the damping force , the effect of reduce vibration increase obviously , 最后，论文给出了结伦：磁流变液阻尼器是半主动控制装置中非常吸引人的控制元件之一，混合工作模式的磁流变阻尼器结构简单，阻尼效果比流动模式和剪切模式均要好，是一种比较理想的磁流变阻尼器；电枢活塞式磁流变阻尼器作为混合模式磁流变阻尼器的一种结构形式，其结构设计合理，性能良好，具有较强的实用价值，值得在工程中推广应用；在电枢活塞式磁流变阻尼器的设计中，应特别注意工作间隙h 、工作直径d 、磁极长度卜都对阻尼器的阻尼力有明显的影响，并注意选用合适的磁流变液材料；输入电流对磁流变阻尼器的阻尼效果影响很大，输入大电流时阻尼力明显增大，减振效果明显提高。
And it requires few power and can continually change its state which is reversible . it is a kind of ideal control device to implement semi - active control . the technology correlated to mr is gradually set store by people , and it is gradually applied to practical project from theoretical research in lab 用磁流变液制作的阻尼器装置简单、体积小、能耗小、可连续可逆变化，是实现半主动控制的理想控制元件，其相关技术越来越受到人们的重视，并且由实验室研究阶段逐步走向应用研究阶段。
This machine is adaptive to sticking labels on bottles of a long tube shape that cannot stand stably during liquor filling , such as small injection bottles , ampoules , and other medicine bottles , as well as batteries . the entire machine is of s304 stainless steel or oxidation p rocessed alloy aluminium , with all the main electric and control units of internationally famous brands , among which the driving system japanese import , and the photoelectric control system german import . all these factors mentioned above can ensure a stable and accurate label sticking operation 该设备适用站立不稳的长筒瓶贴标，如口服液瓶小注射瓶安培瓶电池针剂药品瓶等，整机为s304不锈钢与经氧化处理的铝合金制成。主要电器控制元件均是国际知名品牌，贴标头驱动系统为日本原装进口件光电控制系统为德国原装进口件，确保了贴标的准确性和稳定性。
