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用数字补偿滤波器可补偿传感器的动态特性,而补偿滤波器的设计是基于传感器动态特性的标定。本文针对具有二阶特性的厚膜压力传感器,在仿真及实验的基础上.研究了其二阶动态特性的标定方法,包括物理激励信号的产生.单纯形优化法(Simplex Optimization Method)中所用的目标函数(cost function).为产生高性能的数据字补偿滤波器提供了有效的方法。 相似文献
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磁电式传感器计算机辅助设计 总被引:1,自引:0,他引:1
杨帆 《自动化与仪器仪表》2002,(2):15-18
本文介绍了磁电式传感器计算机辅助设计方法,并用VB编制了磁电式传感器硬件材料选型及动态特性研究的软件包程序,研究动态补偿的最佳方法,用计算机模拟了补偿前后动态特性的输出。 相似文献
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冲击波测试系统中传感器动态补偿装置 总被引:1,自引:0,他引:1
在测量爆炸冲击波陡峭信号时,为了得出准确的超压峰值,必须解决由于传感器的带宽不够引起的测试数据剧烈震荡的问题。为此使用了模糊神经网络算法对传感器进行逆建模进而消除传感器动态误差,此方法能够准确快速地得出动态补偿装置的权值和系数。对压电传感器进行了建模并详细分析了补偿前后传感器的时域和频域动态特性。设计了以ARM为核心的动态补偿装置。实验证明将动态补偿装置应用于工程后能够减小传感器的动态误差并准确获得超压峰值。 相似文献
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腕力传感器动态补偿的两种自适应方法 总被引:4,自引:1,他引:4
根据腕力传感器动态特性随负载情况而变化这一特点,本文提出自适应动态补偿方法,自适应动态补偿器能够自动高速自身的参数,以跟踪传感器模型的变化,始终保证动态响应的快速性,本文给出了两咱实施方法,研究结果表明,自适应补偿的效果非常明显。 相似文献
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针对利用Wiener模型表达的具有动态非线性的传感器进行系统辨识和性能补偿。将系统分解为动态非线性环节和静态线性环节,利用函数链人工神经网络和遗传算法分别进行系统辨识,通过静态非线性补偿将系统简化为线性系统,再进行动态性能补偿。利用LabVIEW设计虚拟仪器,经过仿真表明该方法是有效的。 相似文献
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人体测量学并不是现代社会的产物。有着很长发展历史的人体比例理论中就包含了现代人体测量学的基本内容,尽管其还不够系统完整,但至少说明了在艺术创作中诞生的人体比例理论对现代人体测量学的影响。并随着时间的推移而不断的完善发展,为现代人体测量学的系统提出奠定了坚实的基础。 相似文献
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M. G. Zotov 《Journal of Computer and Systems Sciences International》2006,45(5):714-717
By examples of the design in the input-output relations of control devices with various configurations, the dependence on the configuration of the value of the criteria characterizing the system quality is shown. The complexity of solving the problem in the state space is illustrated. 相似文献
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分析了在长江水质的评价和预测建模过程中出现的一些问题,利用灰色模型的指数特性,建立预测长江水质的GM(1,1)的改进模型。根据数据的周期波动特性,采用灰色系统理论建立了残差序列周期修正GM(1,1)模型,用复合残差来修正预报数据,提高了数据预报的准确程度和模型的适用性。 相似文献
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Weihua Ge Khaled Alkhaledi David Cochran Mohamed Amar 《International Journal of Industrial Ergonomics》2014
Even though using the hand as a hammer causes injury, the practice continues, and may be increasing, in industry and in jobs that require intensive manual labor. This was an exploratory study aimed at measuring the relationships between the forces of strikes, the relative angles of strikes, and/or the number of strikes (up to 3) with the perception of severity of strikes when using the base of the palm of the hand. Eight subjects struck a metal force plate with the base of the palm of the hand at three levels of force, three levels of angle with respect to the surface of a force plate, and with three different numbers of times in a trial. Subjects were then asked to give a psychophysical rating after each trial. The subjective perception of the severity of each impact and force-time curves were recorded. From each force-time curve, peak force, maximum acceleration of force application, and the area of the force curve from initiation to peak were determined. Sixteen ANOVA models were analyzed. 相似文献
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用JSP实现基于中值排序基数法的BBS树状结构,给出数据结构的设计以及具体的算法实现。 相似文献
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沈嘉 《数字社区&智能家居》2007,(17)
为了能够解决学生网络实验的可操作性和实验室安全管理的稳定性之间的矛盾,引入VMware,从而在单机上实现虚拟网络实验平台,提高网络实验教学的课堂效果. 相似文献
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沈嘉 《数字社区&智能家居》2007,(9):1307-1308
为了能够解决学生网络实验的可操作性和实验室安全管理的稳定性之间的矛盾,引入VMware,从而在单机上实现虚拟网络实验平台,提高网络实验教学的课堂效果。 相似文献
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邹凤波 《数码设计:surface》2010,(7):27-29
视觉图像已经成为这个时代最大的主题与规定,而基于图像要素及其关系以及意义的聚集,图像自身的存在成为了游戏的存在。但是,当下世界里视觉图像的游戏是不完善的,总有着遮蔽和欠缺。只有在对视觉游戏的边界进行区分的基础上,视觉图像所被遮蔽的本性才得以敞开。 相似文献
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David Smith 《AI & Society》2003,17(1):1-11
The paper questions the ability of current university systems to respond appropriately to the complex demands of an Information
Economy. It argues that new relationships between creative subjects and technology require new thinking about the nature and
purpose of universities per se. In particular, attention is drawn to the growing involvement of the private sector in higher
education. It is argued that it may not be appropriate to think of the `university of the future' in terms of current public
sector and quasi public sector institutions, but rather in terms of an emporium, based on an international trade in educational
services, and with the `University' as we now understand it occupying the functions of licensing, quality assurance and cultural
custodianship.
Accepted: 25 June 2002 相似文献
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A. S. Rybakov 《Automatic Control and Computer Sciences》2010,44(1):11-21
The peculiarities of the interpolation method based on digital signal processing are considered. It is shown that the transfer
function of the interpolator may be represented by the composition of two functional components. A nonstatistical method of
reconstruction of the form of the corrective component of the transfer function based on processing of the scatter diagram
of the ordered pairs of the experimental and predicted data is investigated. It is shown that such pairs may be obtained in
the process of periodic event flow timing with estimations of the time positions of the signal and the predetermined instants
of the event occurrence being elements of the ordered pairs. The efficiency of the reconstruction method is illustrated by
the experimental results. 相似文献