Laser Velocimetry Based on Single-Photon Array Camera

Shuang Fu; XiaoRui Tian; Jie Yang; Meng Tang; Siqi Zhang; Chenfei Jin

doi:10.3788/LOP230430

Journals >Laser & Optoelectronics Progress >Volume 60 >Issue 8 >Page 0811023 > Article

Laser & Optoelectronics Progress
Vol. 60, Issue 8, 0811023 (2023)

Laser Velocimetry Based on Single-Photon Array Camera

Shuang Fu, XiaoRui Tian, Jie Yang, Meng Tang, Siqi Zhang, and Chenfei Jin^*

Author Affiliations

School of Physics, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China

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DOI: 10.3788/LOP230430 Cite this Article Set citation alerts

Shuang Fu, XiaoRui Tian, Jie Yang, Meng Tang, Siqi Zhang, Chenfei Jin. Laser Velocimetry Based on Single-Photon Array Camera[J]. Laser & Optoelectronics Progress, 2023, 60(8): 0811023 Copy Citation Text

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Fig. 1. Forward and reverse start-stop measurement principle timing diagram

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Fig. 2. Schematic diagram of experimental system

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Fig. 3. Speed measurement system and speed simulator. (a) Speed measuring system; (b) speed simulator

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Fig. 4. Intensity diagram and TCSPC diagram of low-speed moving objects moving from near to far. (a) Intensity diagram; (b) TCSPC diagram

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Fig. 5. Preprocessed intensity diagram and TCSPC signal diagram. (a) Intensity diagram; (b) signal diagram

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Fig. 6. Least-square fitting diagrams. (a) The relationship between lateral distance and time; (b) relationship between radial distance and time

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Fig. 7.

x - t

diagrams under different frame accumulations. (a)-(c) 30, 300, 1500 frames

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Fig. 8.

z - t

diagrams under different frame accumulations. (a)-(c) 30, 300, 1500 frames

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Fig. 9. Relationship between measured speed and frame accumulation under multiple sets of speeds: (a) Relationship between lateral velocity measurement and frame accumulation, (b) relationship between radial velocity measurement and frame accumulation

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Fig. 10. The absolute error of the lateral and radial velocities of multiple groups of targets under different frame numbers. (a) The velocity absolute error line chart with

v_{1} = 0.65 m \cdot s^{- 1}

; (b) the velocity absolute error line chart with

v_{2} = 1.70 m \cdot s^{- 1}

; (c) the velocity absolute error line chart with

v_{3} = 3.40 m \cdot s^{- 1}

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Number of accumulated frames	$v_{t} / (m \cdot s^{- 1})$	Absolute error / $(m \cdot s^{- 1}) (v_{t})$	Relative error $(v_{t})$	$v_{r} / (m \cdot s^{- 1})$	Absolute error / $(m \cdot s^{- 1}) (v_{r})$	Relative error $(v_{r})$
1	0.393	0.107	0.214	0.336	0.084	0.200
3	0.494	0.006	0.012	0.417	0.003	0.007
5	0.502	0.002	0.004	0.422	0.002	0.005
8	0.504	0.004	0.008	0.421	0.001	0.002
10	0.504	0.004	0.008	0.425	0.005	0.012
300	0.508	0.008	0.016	0.416	0.004	0.010
500	0.511	0.011	0.022	0.408	0.012	0.029
700	0.497	0.003	0.006	0.406	0.001	0.002
1000	0.489	0.011	0.022	0.405	0.005	0.012

Table 1. Lateral and radial velocity, absolute error and relative error under different frame accumulations

Shuang Fu, XiaoRui Tian, Jie Yang, Meng Tang, Siqi Zhang, Chenfei Jin. Laser Velocimetry Based on Single-Photon Array Camera[J]. Laser & Optoelectronics Progress, 2023, 60(8): 0811023

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