【摘要】 本文在实验研究的基础上,提出应用频谱分析方法测量透镜焦距,较详细的论述理论分析和测量方法,简要讨论了信号的采集、处理和测量误差(<0.3%)。我们在信息光学实验研究中,提出应用频谱分析方法测量透镜焦距,这种方法方便、精确,便于智能化,为焦距测量补充一种新方法,对信息光学的应用研究也有一定意义。更多还原

【Abstract】 In this paper,a new method to measure lens focal length withfrequency spectrum analysing is presented based on experiment research andtheoretical and experimental description is made in detail.In addition,the da-ta acquisition,process and the measurement accuracy(<0.3%)are brifly di-scussed.更多还原