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介绍一种组合式摆动实验仪,它可以将三线摆、两线摆、扭摆和单摆这四种实验仪器巧妙组合在一起,成为一种新的实验仪,具有一台实验仪测量多种摆动的功能,可以实现多种物理量的测量以及对不同摆动规律的研究,有效节约购置仪器成本。 相似文献
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References: 《理论物理通讯》2007,47(5):851-860
The possibility of modifying a conventional Cavendish torsion pendulum into a half-armed pendulum oscillator to measure the horizontal gravitational acceleration is discussed. A new kind of gravitational detector, gravieye, as we named, can be made by a proper combination of such oscillators to "see" remote objects and to be used, e.g. to detect the movement of huge mass at a long distance. 相似文献
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微幅摆重力加速度仪采用容栅尺位移传感器测量摆长变化量,提高了测量精度,避免了摆球尺寸及重心偏移量的影响,微摆幅设计与高精度的计时装置,能使该仪器更准确地测量单摆的摆动周期,提高重力加速度的测量精度. 相似文献
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用两个自由度微振动理论,导出了轨摆的运动微分方程和两个固有圆频率,给出了微分方程解的一般形式;并通过计算机画图,讨论了两个自由度均以同一圆频率作简谐振动的特殊情况. 相似文献
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We analyse the use of parametric and quasiperiodic modulations in suppressing horseshoe structure in the phase plane of perturbed
pendulum systems. Taking the Froude pendulum as a typical system, four different modulation mechanisms are studied by deriving
analytic expressions for the window of the strength of modulation giving suppression in each case. A comparison of the four
cases from the point of view of flexibility and efficiency is also given. 相似文献