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在静电场中引入电位和电场强度后,通过等电位线图和场强分布图可以具体的描述静电场这种抽象的物质场。传统的静电场模拟实验直观地展现出了静电场的分布从而形象地描述了静电场,由于这种方法属于类比模拟,所以存在一定的缺陷(比如不直接,不能描述立体规律等等)。随着计算机技术的发展,利用计算机技术来模拟静电场等物质场逐渐成为趋势。通过借鉴大量资料简要地介绍了如何利用计算机模拟静电场,如何利用MATLAB软件模拟静电场的问题。 相似文献
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介绍了用Origin软件处理夫兰克—赫兹实验的实验数据。结果表明,和传统的数据处理方法相比,此方法不但较快地绘制出实验数据曲线,而且精确地找出峰值和谷值对应的电压值,因此极大地减少了实验的误差。 相似文献
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We experimentally study the controllable generation of a beating signal using stored light pulses based on electromagnetically induced transparency(EIT) in a solid medium. The beating signal relies on an asymmetric procedure of light storage and retrieval. After storing the probe pulse into the spin coherence under the EIT condition, two-color control fields with opposite detunings instead of the initial control field are used to scatter the stored spin coherence. The controllable beating signal is generated due to alternative constructive and destructive interferences in the retrieved signal intensities. The beating of the two-color control fields is mapped into the beating of weak probe fields by using atomic spin coherence. This beating signal will be important in precise atomic spectroscopy and fast quantum limited measurements. 相似文献
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Controllable beating signal using stored light pulseControllable beating signal using stored light pulseControllable beating signal using stored light pulse 下载免费PDF全文
We experimentally study the controllable generation of a beating signal using stored light pulses based on electro- magnetically induced transparency (EIT) in a solid medium. The beating signal relies on an asymmetric procedure of light storage and retrieval. After storing the probe pulse into the spin coherence under the EIT condition, two-color control fields with opposite detunings instead of the initial control field are used to scatter the stored spin coherence. The controllable beating signal is generated due to alternative constructive and destructive interferences in the retrieved signal intensities. The beating of the two-color control fields is mapped into the beating of weak probe fields by using atomic spin coherence. This beating signal will be important in precise atomic spectroscopy and fast quantum limited measurements. 相似文献
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稳相技术是影响系统测量精度的重要因素之一,它减小了工程中拆卸前后相位变化过大引入的系统固有误差,进而保证系统的测量精度。提出了一种快速拆卸的稳相多芯射频电缆组件。从稳相电缆的原理进行分析,通过理论分析和仿真计算结果对比,优化稳相结构设计。对电压驻波比、弯曲相位稳定性、温度和机械寿命等方面进行了详细测试。试验结果表明:该集成组件的设计方法合理,降低了设计要求,工程易实现,使用便捷、可靠,具有很强的实用性。 相似文献
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