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从频域的角度对RC微分电路进行了分析,在Madab7.1和Muhisim7.0里对矩形脉冲经微分电路前后的电压波形分别进行了仿真,指出了人为理论分析的近似性及实验仿真的可靠性。 相似文献
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以某废弃黏土矿项目为例,先利用软件CASS7.1的边坡处理功能,设计地形面,提取坐标点数据,导出DEM数据,再利用Surfer8.0将导出的DEM数据进行网格化处理,然后根据三维表达结果,分别计算原始地形体积和设计地形体积,从而进一步计算出土方工程量。结果显示:应用软件CASS7.1和Surfer8.0计算土方工程量的方法,相对于常用的方格网法、断面法和等高线法更为简洁、直观,并有效提高土方计算精度,实现了计算的自动化。 相似文献
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点之记是记载控制点点名、等级、点位略图及与周围固定地物的关系等情况的资料,在工程测量中得到了广泛地运用。本文概要性介绍了采用CASS7.1绘图软件做点之记的一般方法步骤和技巧,阐述了点之记在工程测量后续工作中的重要性。 相似文献
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利用德国MVTec公司的机器视觉软件Halcon7.1的模式匹配技术,实现对SMT-PCB(表面贴装印刷电路板)元件缺陷:有无、极性、偏移以及旋转的质量检测。 相似文献
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LabVIEW是一个功能强大而又灵活的仪器和分析软件应用的开发工具.利用虚拟仪器领域中最具有代表性的图形化编程开发平台LabVIEW,建立虚拟"自动控制原理"实验室,弥补了传统实验室的不足,使教学更为生动,实验设计更加灵活. 相似文献
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基于LabVIEW7.1多功能信号发生器的设计 总被引:4,自引:0,他引:4
采用LabVIEW7.1环境下开发的程序,组建了多功能虚拟信号发生器。该发生器不仅能产生正弦波、方波、三角波和锯齿波这4种基本波形,还可以输出其它任意波形,并可模拟实际工作环境中添加了噪声后的波形信号,同时还可轻松、快捷地将这些信号波形显示出来。解决了传统信号发生器只能产生基本波形的局限性,为学习和实践测试提供了一条捷径。 相似文献
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LiChun Chen Hu Wang YongKang Ran XinZhe Sun GuiWu Su Ji Wang XiBin Tan ZhiMin Li XiaoQing Zhang 《科学通报(英文版)》2010,55(31):3504-3509
As revealed by field investigations, the co-seismic surface rupture zone of the 2010 MS7.1 Yushu earthquake, Qinghai is a char-acteristic sinistral strike-slip feature consisting of three distinct sinistral primary ruptures, with an overall strike of 310°–320° and a total length of 31 km. In addition, an approximately 2-km-long en-echelon tensile fissure zone was found east of Longbao Town; if this site is taken as the north end of the rupture zone, then the rupture had a total length of ~51 km. The surface rupture zone is composed of a series of fissures arranged in an en-echelon or alternating relationship between compressive bulges and tensile fissures, with a measured maximum horizontal displacement of 1.8 m. The surface rupture zone extends along the mapped Garzê-Yushu Fault, which implicates it as the seismogenic fault for this earthquake. Historically, a few earthquakes with a magnitude of about 7 have occurred along the fault, and additionally traces of paleoearthquakes are evident that characterize the short-period recurrence interval of large earthquakes here. Similar to the seismogenic process of the 2008 Wenchuan earthquake, the Yushu earthquake is also due to the stress accumulation and release on the block boundaries resulting from the eastward expansion of Qinghai-Tibet Plateau. However, in contrast with the Wenchuan earthquake, the Yushu earthquake had a sinistral strike-slip mechanism resulting from the uneven eastward extrusion of the Baryan Har and Sichuan-Yunnan fault blocks. 相似文献
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