Optical Instruments, Volume. 47, Issue 3, 44(2025)

Evaluation and calibration of the measurement characteristics of white light interference systems

Xiaoyu CAI, Junjie WU, and Jiasi WEI*
Author Affiliations
  • Key Laboratory of Bioanalysis and Metrology for State Market Regulation, Shanghai Institute of Measurement and Testing Technology, Shanghai 201203, China
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    Figures & Tables(7)
    Typical optical path diagram of white light interference
    Typical block of WLIS
    Measuring result of Z-resolution
    Structure of the micro-nano 3D standard template (Model: STS)
    Traceability chain of WLIS
    • Table 1. The influence quantities and their sources in WLIS

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      Table 1. The influence quantities and their sources in WLIS

      影响量来源影响量受影响的计量特性
      光源λ0测量波长纵向测量示值误差
      Bλ0光学测量带宽
      S,P,C,E,U照射到被测表面的光的偏振态纵向测量示值误差、横向测量示值误差
      光学成像组件NA数值孔径示值误差、横向周期限
      MIMG相机成像尺寸与被测物尺寸之间的倍率横向测量示值误差
      ΔPATH波前畸变(由参考臂和测量臂的波前偏差引起的光路净偏差)纵向测量示值误差
      QOPT所用光学组件的总体质量,包括像差、透过率、对准误差等示值误差、横向周期限
      PDISxy相机上被放大图像的横向失真示值误差、横向周期限
      UI(x,y)照度均匀性示值误差
      图像传感器Δxx方向的像素间距横向周期限
      Δyy方向的像素间距
      控制采集软件Vz扫描速度纵向测量示值误差
      zTOT扫描长度
      Δz扫描步长
      Δz-LIN扫描线性度
      TI扫描时间纵向分辨力(测量噪声)
      Dzz方向扫描步距纵向分辨力(测量噪声)
      分析校准软件(含校准标样)AALG测量算法纵向测量示值误差
      DMOD条纹强度调制阈值,可识别为干涉条纹的最小峰谷强度变化
      Cz纵向校准系数
      Cxy横向校准系数横向测量示值误差
      测量运动平台及仪器整体DxDy横向采样间距横向周期限
      NVIB环境振动纵向分辨力(测量噪声)
      NI仪器噪声
      xHYS,yHYS,zHYS迟滞示值误差
    • Table 2. The objective magnification and the working distance

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      Table 2. The objective magnification and the working distance

      放大倍率2.55102050100
      工作距离/mm10.39.37.44.73.42
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    Xiaoyu CAI, Junjie WU, Jiasi WEI. Evaluation and calibration of the measurement characteristics of white light interference systems[J]. Optical Instruments, 2025, 47(3): 44

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    Paper Information

    Received: Jun. 17, 2024

    Accepted: --

    Published Online: Jul. 28, 2025

    The Author Email: Jiasi WEI (weijs@simt.com.cn)

    DOI:10.3969/j.issn.1005-5630.202406170078

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