共查询到20条相似文献,搜索用时 437 毫秒
1.
2.
3.
4.
报道了激光诱导热效应光栅自衍射效率与两入射激光束夹角的依赖关系,实验结果给出自衍射效率与夹角的四次方成反比,理论分析与实验结果一致。 相似文献
5.
本文用电了衍射研究了1,1,2,2-四氯乙烷分子的结构,组成,扭曲式与反式的能量和熵的差别以及阻碍内旋转的势垒。其结果与其他实验方法和理论计算的结果很一致,鉴别了两个老的电子衍射实验所得的不同结论。 相似文献
6.
7.
本报导了一种新的summing算法的核磁共振实验实现。实验中我们用到了四个量子位的核自旋体系,其中两个量子位构成输入寄存器,另两个量子位构成输出寄存器。最后的实验结果只需通过测量输出寄存器中核自旋的谱线获得。 相似文献
8.
9.
介绍了自行设计的气轨上两耦合振子的受迫振动实验,该实验物理现象非常下观,清晰,便于测量。且实验结果与理论相符,整个装置仅在原有 气垫导轨基础上增加一驱动器即可实现,效果甚佳,易于推广。 相似文献
10.
本文讨论了冲击波后温度弛豫的理论方法。和R. Grover及P.A. Urtiew不同,采用了非傅里叶热传导理论,结果和实验十分符合,而实验结果用傅里叶热传导理论是无法解释的。当时间趋于无穷时,这两种方法的结果又趋于一致,文章中作了物理原因的解释。 相似文献
11.
光电混合变换相关器在体视测距中的应用 总被引:1,自引:0,他引:1
本文研究了体视测距系统的图像联合变换相关原理,推导出利用像联合变换相关测量目标距离的公式。同时,本文表明把光电混合联合变换相关器用于体视测距系统的原理装置和测距实验。 相似文献
12.
This paper presents the results of investigating the effect of curvature and pitch on stress-wave propagation in helical springs. It supplements a previous paper in which the work carried out on a single spring of fixed curvature and pitch was described and the experimental results compared with theory. A short duration, wide-band pulse technique, described in the first paper, was used to investigate the nature of the propagation. Theoretical dispersion curves, appropriate to the springs used, were computed for comparison with the experimental results which were interpreted according to Kelvin's principle of stationary phase. 相似文献
13.
This paper presents results of a theoretical and experimental study of Bragg anisotropic diffraction. The diffraction may be used for filtration of optical radiation and processing of images. Special attention is devoted to the investigation of diffraction, which provides spectral filtration simultaneously with polarization analysis of divergent optical beams. A tunable tellurium dioxide acousto-optical filter for processing of optical images is described in the paper. Some experimental results of the image analysis in visible light and in the near-infrared region of the spectrum are discussed. 相似文献
14.
15.
用倍频晶体KTP实现Nd:YAG激光锁模的研究 总被引:1,自引:1,他引:0
报道用倍频晶体KTP实现Nd:YAG激光锁模的系统研究,给出了该锁模激光器输出脉宽的表达式,并和实验测量值相比较,计算值跟实验结果符合较好.文中还分析了各种参数对该锁模激光输出性能的影响. 相似文献
16.
17.
The objective of this paper is showing how global safety arguments can be fruitfully used to interpret experimental results of a pendulum parametrically excited by wave motion. In fact, the results of an experimental campaign developed with the aim of simulating sea-waves energy production by a parametric pendulum show that rotations exist in a region which is smaller than the theoretical one. This discrepancy can be partially attributed to the experimental approximations and constraints, but it has a deeper theoretical motivation. By comparing the experimental results with the dynamical integrity profiles we have found that experimental rotations exist only where a measure of dynamical integrity accounting for both attractor robustness and basin compactness is large enough, so that they can support experimental imperfections leading to changes in initial conditions. 相似文献
18.
19.
20.
《Journal of Electrostatics》2004,60(2-4):175-181
In the present paper, a new stochastic model is used for the simulation of an experimental procedure concerning the study of Franklin rod height impact on striking distance. The results obtained from the application of the stochastic model, which is developed for the simulation of lightning and breakdown in long air gaps, are compared with the experimental results obtained in the High Voltage Laboratory. Real values for voltage, space and time were introduced in the model. The comparison of the simulation with the experimental results, show that the stochastic model has given a good approximation in the case of large distances between the active electrode and the ground. 相似文献