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差动变压器式位移传感器检测系统研究 总被引:2,自引:0,他引:2
介绍了差动变压器位移传感器的结构和原理,分析了零点残余电压产生的原因以及对差动变压器位移传感器灵敏度、线性度、精度的影响,并给出了有效的解决方法。应用LabVIEW对差动变压器副边线圈的差动输出信号进行检相、滤波等处理。结果表明:与其他检测方法相比,该差动变压器位移传感器具有更高的灵敏度和更良好的线性度。 相似文献
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为了克服实际伺服阀动态测试时,动态缸平衡位置偏移的问题,介绍了采用差动变压器原理(LVDT)位移传感器完成动态缸的位置检测,实现位置闭环控制的应用方式;分析了差动变压器(LVDT)位移传感器的工作原理、结构特点和信号处理要求;阐述了采用ICL8038信号发生器芯片产生LVDT的激励电压,应用AD630芯片实现LVDT位... 相似文献
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差动变压器式五元位置传感器可以检测物体的三向平行位移以及俯仰角和偏航角。文中简要介绍了它的结构、工作原理和传输特性,详细讨论了这种传感器应用于风洞磁悬挂天平时的信号检测。 相似文献
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为了满足伺服系统位移传感器安装空间小、测量范围大及高可靠性的需求,对串联双冗余高精度差动变压器式位移传感器的设计技术进行了研究。阐述了差动变压器式位移传感器的原理和结构,介绍了串联双冗余差动变压器式位移传感器抗电磁耦合干扰、结构加固以及专用变换电路的设计方法;为提高线性度,在有限的径向安装空间,设计阶梯式线圈绕制方法,通过试验找出了最佳绕线参数,使线性度达到0.1%以上,满足了系统的高精度和高可靠性要求。 相似文献
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本文介绍了变压器的微机差动保护装置的原理及系统构成,着重分析了变压器差动保护信号的引入及变换方法、A/D转换、CPU模块,跳闸出口环节,并设计出较为实用的电路。 相似文献
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王国永 《自动化与仪器仪表》2011,(3):67-68,71
对节流式差压流量计的发展现状及国际标准ISO5167:2003(E)对直管段要求的变化进行了介绍。介绍节流式差压流量计的新进展之一调整型孔板405C和1595,阐述了该流量计的结构型式、测量原理、性能特点和应用情况,并和标准孔板进行比较。 相似文献
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Bahrom B. Sanugi 《Journal of scientific computing》1992,7(1):81-94
The iterative multistep method (IMS) introduced by Hyman (1978) for solving initial value problems in ordinary differential equations has the advantage of being able to offer a higher degree of accuracy than the Runge-Kutta formulas by continuing the iteration process. In this article, another IMS formula is developed based on the geometric means predictor-corrector formulas introduced by Sanugi and Evans (1989). A numerical example is provided that shows that this formula can be used as a competitive alternative to Hyman's IMS formula. 相似文献
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S. Tomasiello 《国际计算机数学杂志》2017,94(9):1719-1726
Fuzzy transforms (or F-transforms for short) are an approximation technique recently introduced. The main application is referred to image and data compression. There are really few works devoted to the use of F-transform for solving ordinary differential equations. In the present paper, an F-transform-based Picard-like numerical scheme is proposed in order to solve a class of delay differential equations. For linear cases, the proposed approach leads to a non-recursive approximate solution by means of operational matrices and vectors of known quantities. Numerical results show the good performance of the proposed method against known solutions. 相似文献
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Non‐Zero Sum Differential Games of Backward Stochastic Differential Delay Equations Under Partial Information 下载免费PDF全文
In this paper, we study a new type of differential game problems of backward stochastic differential delay equations under partial information. A class of time‐advanced stochastic differential equations (ASDEs) is introduced as the adjoint process via duality relation. By means of ASDEs, we suggest the necessary and sufficient conditions called maximum principle for an equilibrium point of non‐zero sum games. As an application, an economic problem is putted into our framework to illustrate the theoretical results. In terms of the maximum principle and some auxiliary filtering results, an equilibrium point is obtained. 相似文献
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差动变压器式压力传感器的磁路设计 总被引:2,自引:0,他引:2
介绍了差动变压器式压力传感器的工作原理、磁路设计及关键工艺。具有灵敏度高、分辨力大的特点 ,工作在 2 2 0℃条件下漂移极小 .介绍了差动变压器组件 (铁芯衔铁线圈 )的选用原则、参数的确定及校验 相似文献