• Infrared and Laser Engineering
  • Vol. 49, Issue 10, 20200216 (2020)
Bo Zhang, Wengjian Zhang, and Lihua Lei*
Author Affiliations
  • Shanghai Institute of Measurement and Testing Technology, Shanghai 201203, China
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    DOI: 10.3788/IRLA20200216 Cite this Article
    Bo Zhang, Wengjian Zhang, Lihua Lei. Development of coaxiality measurement system of turbine components and stud standard parts[J]. Infrared and Laser Engineering, 2020, 49(10): 20200216 Copy Citation Text show less
    Testing fixture for measuring coaxiality
    Fig. 1. Testing fixture for measuring coaxiality
    First measurement data
    Fig. 2. First measurement data
    Second measurement data
    Fig. 3. Second measurement data
    Third measurement data
    Fig. 4. Third measurement data
    Fourth measurement data
    Fig. 5. Fourth measurement data
    No.Measurement Uncertainty Source$ui$Evaluation typeDistribution type$ui$/μm
    1RepeatabilityA/0.2
    ResolutionBuniformiy0.03
    2Indication error of inductance micrometerB/0.2
    3TemperatureBuniformiyneglected
    Expansion factorBuniformiyneglected
    4Force of measurementBuniformiyneglected
    5Three-needle form errorBTwo-point0.71
    6Installation errorBTwo-point1
    Buniformiyneglected
    7Mechanism errorBuniformiyneglected
    Buniformiyneglected
    Combined standard uncertainty: 1.26
    Expanded uncertainty(k=2): U2.6
    Table 1. Measurement uncertainty source and the summary of calculate results
    Bo Zhang, Wengjian Zhang, Lihua Lei. Development of coaxiality measurement system of turbine components and stud standard parts[J]. Infrared and Laser Engineering, 2020, 49(10): 20200216
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