Acta Photonica Sinica, Volume. 50, Issue 7, 139(2021)

Design of Spatial Resolution PDV Probe Based on Double Telecentric Lens

Jun YANG1,2,3, Yadong YAN1, Qi LI1, Guokai SHI3, Zhao WANG3, Yang ZHANG3, Suoqi ZHANG3, and Junhua HE1
Author Affiliations
  • 1Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an709, China
  • 2University of Chinese Academy of Sciences, Beijing100049, China
  • 3Laboratory of Intense Dynamic Loading and Effect, Xi’an710024, China
  • show less

    In order to simultaneously measure the multi-point velocity of a plane target in the range of 5 mm in material dynamics experiments or structural response research, a laser transmitting and receiving probe with spatial resolution for photonic Doppler velocimetry is developed based on the dense fiber array and double telecentric lens. The optical design and structural design are described, and the installation and testing of the probe are performed. The test results of output spot characteristics show that the vertical axis magnification of the probe is consistent with the design value. The minimum diameter of the spot at the focusing position is 109 μm and the maximum is 202 μm. The test results of the receiving efficiency of the probe to the diffuse reflection target show that each fiber in the probe is not crosstalk, and the receiving efficiency of the fiber near the center is large, while that of the two sides is small.

    Tools

    Get Citation

    Copy Citation Text

    Jun YANG, Yadong YAN, Qi LI, Guokai SHI, Zhao WANG, Yang ZHANG, Suoqi ZHANG, Junhua HE. Design of Spatial Resolution PDV Probe Based on Double Telecentric Lens[J]. Acta Photonica Sinica, 2021, 50(7): 139

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Instrumentation, Measurement and Metrology

    Received: Jul. 21, 2020

    Accepted: Feb. 4, 2021

    Published Online: Sep. 1, 2021

    The Author Email:

    DOI:10.3788/gzxb20215007.0712002

    Topics