Optoelectronic measurement for parameters of high-speed flying objects based on laser screen and photodiode array

Donge Zhao; Bin Zhang; Ji Liu; Kai-jia Xiao; Lei Wang

doi:10.1117/12.2035207

19 September 2013 Optoelectronic measurement for parameters of high-speed flying objects based on laser screen and photodiode array

Donge Zhao, Bin Zhang, Ji Liu, Kai-jia Xiao, Lei Wang

Author Affiliations +

Proceedings Volume 8905, International Symposium on Photoelectronic Detection and Imaging 2013: Laser Sensing and Imaging and Applications; 89052S (2013) https://doi.org/10.1117/12.2035207
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

The impacting or penetrating power of high-speed flying object can be evaluated by its mass and velocity, so the velocity and the mass are two key parameters. Here we present an optoelectronic measurement method for parameters of high-speed flying objects based on parallel laser screen and photodiode array. The system consists of two thin laser screens with parallel each other and certain distance, orthogonal two dimensional photodiode arrays, data acquisition module, control module and data transmission processing module. When the object flies through the thin screen, the incident light of some photodiodes at the corresponding position is blocked and the output states of the corresponding photodiodes are changed. The flying position, which can be used to correct the distance error, velocity and the overall dimension of the object are determined by high-speed sampling and storing all the output states of photodiode array at any sampling moment when the object flying through the thin screens. We employed a line-shaped laser diode and a Fresnel lens with long-focal-length and aberration-free to generate parallel laser screen. The high-speed large-amount parallel data sampling module is comprised of four FPGA-based boards with built-in FIFO buffer memory, and the control module is constructed by one FPGA board and a FLASH memory. Functions simulation and experiment results of the FPGA-based data acquisition storage and the LabVIEW-based data processing indicate that the method and the design are feasible.

Citation Download Citation

Donge Zhao, Bin Zhang, Ji Liu, Kai-jia Xiao, and Lei Wang "Optoelectronic measurement for parameters of high-speed flying objects based on laser screen and photodiode array", Proc. SPIE 8905, International Symposium on Photoelectronic Detection and Imaging 2013: Laser Sensing and Imaging and Applications, 89052S (19 September 2013); https://doi.org/10.1117/12.2035207

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KEYWORDS

Field programmable gate arrays

Photodiodes

Data acquisition

Control systems

Optoelectronics

Data processing

Fresnel lenses

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