【作者】 王金娜；

【导师】 李庆辉； 阎秉先；

【作者基本信息】 西安电子科技大学 ， 光学工程， 2010， 硕士

【摘要】 本文是应用激光三角测距原理来设计激光位移传感器,研究了激光发射与接收的光学系统设计、光电信号处理与运算的方法,从而高精度地计算出被测物的位移量。本文从分析影响系统测量精度的因素出发,着重讨论了激光的准直发射、激光接收光学系统的设计和应用非球面来校正系统像差的方法,并详细分析的球面透镜和非球面透镜系统的各自成像特点,提出了用于解决本系统大视场和大景深所带来的较大像差的光学系统设计方案,并对系统进行了验证；在系统控制电路设计时,加入了激光的自适应光强调节功能,并通过带通滤光技术,用以提高系统适应不同测量环境的能力；应用软件实现CCD光斑重心的算法,用来取代一般所使用的最大值法,从而很大程度上保证和提高了系统的测量精度。更多还原

【Abstract】 This paper adopts the laser triangulation measuring theory to design the laser displacement sensor, it studies the laser transmitting, receiving of the optical system, photoelectric signal management and calculating method, thus, can calculate the measure displacement accurately. The paper bases on the factors of affecting measurement accuracy, emphatically discusses the laser collimator emission, laser receiving optical system design and method of application aspherical to correct system aberration, analyses the respective imaging characteristics of the spherical lens and aspherical lens, and puts forward to optical system design program of solving the field of view and depth of field, then verifies the system. When the system controls circuit design, it proposes the adaptive controller for laser intensity to improve the ability of adapting different environment through bandpass filter technology. The paper applies software to realize the gravity algorithm of CCD flare so as to replace the maximum method, which guarantees and improves the measuring accuracy of the system to a great degree.更多还原