共查询到19条相似文献,搜索用时 109 毫秒
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尝试用DISlabV6.0位移传感器在不同条件下测量重力加速度,实验显示:测量结果与实际值之间差异较大.在现有可行的实验条件下,DISlabV6.0位移传感器不适合定量地测量重力加速度. 相似文献
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基于虚拟仪器对单摆法测量重力加速度实验进行改进,通过H2010型光电门收集摆球的运动信息,利用声卡和LabVIEW搭建数据处理平台采集和处理实验数据.实验结果表明:重力加速度的测量相对偏差为0.7%. 相似文献
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用传感器测量重力加速度徐瑞堂,吴甫秀(江西师范大学物理系南昌330027)由南京工学院研制,扬州无线电二厂生产的YE5858双积分电荷放大器(简称YE5858)和YE14105低频压电式加速度传感器(简称YE14105)配接使用,可测量航空、机械、车... 相似文献
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叙述了一种采用DIS数字化信息系统辅助测定重力加速度g的方法,通过实地测试可知,实验数据重复性好,精度高,方法简单可操作性强,若对系统的专用软件进行扩充编程,可使整套系统成为测定重力加速度实时显示的专用系统. 相似文献
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利用智能手机内置的压力传感器和温度传感器设计了一个新实验.通过测量相对海拔高度与气压的关系,通过线性拟合获得重力加速度.这种新的实验方法无需额外装置,且实验过程简单易行. 相似文献
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提出了一种测量重力加速度的新方法,结合CCD杨氏模量实验仪给出了重力加速度和杨氏模量的物理关系式,从测量结果可知,所测重力加速度与标准值相比其相对误差甚小,说明该实验方案确实可行,具有一定的应用价值。 相似文献
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Lars V. J?rgensen 《Hyperfine Interactions》2012,212(1-3):41-49
The experimental program of the AEgIS experiment at CERN’s AD complex aims to perform the first measurement of the gravitational interaction of antimatter, initially to a precision of about 1%, to ascertain the veracity of Einstein’s Weak Equivalence Principle for antimatter. As gravity is very much weaker than electromagnetic forces, such an experiment can only be done using neutral antimatter. The antihydrogen atoms also need to be very cold for the effects of gravity to be visible above the noise of thermal motion. This makes the experiment very challenging and has necessitated the introduction of several new techniques into the experimental field of antihydrogen studies, such as pulsed formation of antihydrogen via 3-body recombination with excited state positronium and the subsequent acceleration of the formed antihydrogen using electric gradients (Stark acceleration). The gravity measurement itself will be performed using a classical Moire deflectometer. Here we report on the present state of the experiment and the prospects for the near future. 相似文献
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本实验针对实验室用物理摆的特性,设计出另一种用物理摆测量重力加速的方法。该方法的核心思想是找出周期与转动惯量的关系。 相似文献
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The possibility of performing in proximity of the Earth experiments to test the predictions of general relativity for the trajectories of particles and photons in weak gravitational fields is studied. Three experiments are analyzed, all based on optical detection methods. The first experiment would allow to detect the tidal acceleration using a freely-falling Michelson interferometer. In a second experiment, based on laser-ranging methods, the relativistic correction to the classical gravity acceleration could be detected. Finally, the possibility of detecting light deflection induced by space curvature in an optical cavity with high-reflectivity mirrors is discussed. 相似文献
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在物理实验中引入“计算机应用”是当前教改的任务之一。也是实验教学发展的必然趋势。本通过重力加速度和型材杨氏模量的测量实验,说明计算机通信接口在物理实验中应用的可行性。 相似文献