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1.
根据霍尔效应原理,设计出测量微小长度的实验装置,用它进行了一系列的测量,理论和实验结果表明:此方法的测量范围在微米到毫米数量级,测量精度高,可广泛用于大学物理实验教学和工程测量.  相似文献   

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利用光杠杆测量微小长度变化,是普通物理实验中常用的方法,本文将介绍笔者在教学实践中总结的调整光杠杆、尺读望远镜的简单方法。  相似文献   

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玻璃是我们生活中十分常见的物体,折射率是这种透明介质的主要参数之一。通过一些方法将玻璃三棱镜的折射率进行确定,就能够更好地掌握玻璃的应用技巧。通过对分光计测量玻璃三棱镜折射率的方法进行研究,并对测量所需要的仪器以及一些使用方法进行分析,以能够扎实了解分光计测量的基本原理以及结构,最终得到待测玻璃的折射率。  相似文献   

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放大法与微小长度的测量   总被引:3,自引:0,他引:3  
在物理实验中,常常会遇到一些微小的量,用给定的仪器进行测量时会带来很大的误差,甚至无法进行测量.如果能将待测量按照一定的规律放大,就可以达到既能测量,又能减少误差的目的.此文讨论了物体发生形变时,长度发生微小变化的几种测量方法,并进行了比较;以及用光的干涉测薄片等微小长度的测量方法.  相似文献   

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对在“分光计测量三棱镜顶角”实验中出现的“看不到狭缝光反射像”情况的原因进行了分析,提出解决问题的办法,并对实验装置进行了改进,取得了良好的实验效果。  相似文献   

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分光计装置结构精密,调整操作技术较复杂,使用时必须要按要求做到仔细熟练调整,才能获得较精确的实验结果。  相似文献   

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用分光计采用最小偏向角法,测出汞灯、氢灯和氦-氖激光器发出的已知谱线的波长所对应的折射率,利用Origin8.0软件,拟合出色散曲线,得到色散公式.再通过测量钠灯各谱线的波长及确定其所属线系来测定里德堡常数.测量结果相对误差为2.95%,实现了使用普通常规仪器测量里德堡常数.  相似文献   

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介绍了分光计上用等顶角入射法、等顶角折射法、垂直入射法、垂直折射法等精确测量棱镜折射率的4个方法  相似文献   

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提出了用水准仪作辅助手段快速调节分光计的一种新方法。  相似文献   

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我们生活在地球上往往需要知道自己所处的地理位置,特别是航海员、旅行者和探险家,他们知道自己所在的位置是很重要的,而地球上任意一点的位置是由经度和纬度来表示的,其经度值可以用时间(世界时)来确定,纬度值要用天文测量仪来测定,这里介绍两种测量纬度的简单方法.  相似文献   

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Summary In considering in this paper the origins, development and need for psychosexual counselling to be an integral part of the provision of a counselling service, one must not lose sight of the fact that some higher educational institutions still have no general counselling provision.It is interesting to note that in the UK at a time when the age of consent and voting age were lowered to eighteen years (Family Law Reform Act, 1969, operational 1970 and Representation of the People Act, 1969), and students were rejecting the idea of wardens and academic tutors acting in loco parentis, the National Union of Students (at their annual conference in 1969) passed a resolution pressing for Counselling Services to be established in each higher educational institution-staffed by fully trained personnel, Milner (1974). Nine years later this resolution has not yet been fully implemented.The university community represents a cross-section of the population, any of whom may have a psychosexual problem and seek help from the counselling service. Counsellors must be trained to treat psychosexual problems as part of their normal range of activities.Storr (1960) points out that it is The individual as well as the disease that needs treatment. This applies in counselling as it does in medicine, so that the counsellor should be able to treat the individual as a whole, and at the same time treat his psychosexual problem.University of Reading  相似文献   

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Zoology, being a basic bioscience, is essential for a better understanding of applied biological disciplines. A sound background in zoology can often be the key to success in modern day cutting-edge biological research. Students of zoology have many more interesting questions to ask now than ever before. Precisely when did humans take to clothing? How is losing body hair actually correlated to body louse speciation? What is so unique about a schistosome that enables it to parasitize two very different host species, to have a free living stage and show a broad range of host specificity in one life cycle? Genomics has already helped us to get the molecular expression profiles of many organisms. But to understand how all the information obtained at the molecular level fits into the scheme of things, we need a sound foundation in zoology. It is all the more fun studying zoology now with so many interesting questions to ask and ideas to explore.  相似文献   

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Gifted Students participate in interdisciplinary humanities courses that are student centered and project oriented.  相似文献   

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Hermite矩阵初探   总被引:3,自引:0,他引:3  
Hermite矩阵在酉空间、酉变换及复系数二次型中都有很重要的地位,对它加以研究是极其必要的.本文用类似于实对称矩阵的研究方法,得到了Hermite矩阵的部分性质.  相似文献   

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