毕业论文（设计）三线摆周期的自动测量装置.docxVIP

PAGE \* MERGEFORMATIV 三线摆周期的自动测量装置 摘要 物理学是一门实验科学，物理实验是发现物理规律、形成理论的基础。可以毫不夸张地说，没有物理实验的进步就没有物理学的发展。正是由于实验思想和方法的不断创新，实验仪器和设备的不断改进等，才使人类对物理世界的探索和对物理规律的认识不断深入。实践证明，每当实验上有新的发现或者试验方法、测量精度上有新的突破时，原有的理论都要重新受到验证、检验或修正，从而推动整个物理学发展到达一个新的高度。 任何物理实验几乎都离不开对物理量的测量。正是对各种物理现象的观察，对各种物理量的测量，对测量数据的分析、处理、归纳、抽象才上升成了物理理论。在实验物理学中，对各种物理量的研究和测量已经形成了自身的理论和卓有成效的测量方法。他们不但对物理学的发展起到了巨大的推动作用，而且这些理论和方法还有其基本性和通用性，对其他有实验的学科的研究无疑也是极具价值的。 三线摆作为测量物体转动惯量的有效工具常被应用于实验测量，目前多数大学开设此类实验。本次毕业设计课题为设计出一种可以自动测量三线摆周期的自动测量装置。经过考虑决定采用单片机作为测量的核心工具，软件部分采用C语言。另外为了检测到三线摆的摆动，采用光电传感器作为捕捉信号的工具，最后用LCD显示出来。 关键词: 三线摆, 单片机, 光电传感器, C语言 The Automatic Timing Device of Three Line Pendulum Electronic Information Science and Technology 11-2 Mu Haixin Supervisor Zhou Yue Abstract Physics is an experimental science, physics experiment is to discover the laws of physics, the theory of the formation of the foundation. It is no exaggeration to say that there is no physical experiments can be no development progress of physics. It is because of innovative ideas and methods of test, the continuous improvement of laboratory instruments and equipment, etc., to make human exploration and understanding of the physical laws of the physical world to the deepening. Practice has proved that whenever there is a new discovery experiment or test methods, a new breakthrough measurement accuracy, the original theory be renewed verification, inspection or amended so as to promote the development of physics to reach a whole new level. Almost inseparable from any physical experiment measurement of physical quantities. It was the observation of a variety of physical phenomena, a variety of physical measurements, the measurement data analysis, process, summarize, before the rise of abstract theory became physical. In experimental physics, the study and measurement of various physical quantities has formed its own theoretical and effective methods of measurement. They not only on the development o