Calibration of measurement uncertainty of forward-scattering spectrometer probes

ZHAO Qi; YANG Jie; JIANG Zewei; MENG Qing'an; FAN Hongying; LI Yiguo; GENG Xu

doi:10.7510/jgjs.issn.1001-3806.2016.01.022

LASER TECHNOLOGY > 2016 > 40(1): 99-102. > DOI: 10.7510/jgjs.issn.1001-3806.2016.01.022

ZHAO Qi, YANG Jie, JIANG Zewei, MENG Qing'an, FAN Hongying, LI Yiguo, GENG Xu. Calibration of measurement uncertainty of forward-scattering spectrometer probes[J]. LASER TECHNOLOGY, 2016, 40(1): 99-102. DOI: 10.7510/jgjs.issn.1001-3806.2016.01.022

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Calibration of measurement uncertainty of forward-scattering spectrometer probes

1.
Southwest Institute of Technical Physics, Chengdu 610041, China;
2.
College of Electronics and Information Engineering, Sichuan University, Chengdu 610064, China;
3.
College of Electronic Engineering and Optoelectronic Technology, Nanjing University of Science and Technology, Nanjing 210094, China

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Received Date: November 19, 2014
Revised Date: January 16, 2015
Published Date: January 24, 2016

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Abstract

For the purpose of calibration of a forward-scattering spectrometer probe (FSSP), a pinhole-disc calibration apparatus was designed based on diffraction technology. After calculation and simulation of Mie scattering and Fraunhofer diffraction power, the conversion relationships between the pinhole diameter and aerosol particle size were gotten. Parameters of calibration apparatus were gained after calculation based on the conversion relationship. After theoretical analysis and experimental verification, measurement uncertainty of standard particles was delivered to cloud particle spectrometer probe. And then, after the experiment of rotating pinhole disc, measurement uncertainty was passed to the calibration apparatus. Experimental results of calibration apparatus verified theoretical analysis. The results show that calibration apparatus has feasible calibration scheme with high efficiency, large calibration range, good measurement discrete uniformity and good repeatability. The study is helpful for calibration technology of spectrometer probes.
- measurement and metrology,
- measurement uncertainty,
- calibration device,
- forward-scattering spectrometer probe

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