IEEE Instrumentation & Measurement - September 2023 - 41

measure this measurement range and also proves that the NIR
short-wave scattering measurement does not have the function
of measuring the sand content in high concentration.
Conclusion
This paper introduced equipment and a method based on
NIR short wave scattering sand content measurement, using
the 850 nm NIR short wave as the light-emitting element
and combining the convenience of field use and the range
of sand content using scattering method, to achieve sand
content measurement. The relative error of measurement accuracy
after calibration was less than 3.44% with uncertainty
1 0148 0 0174
kg m . The relative error of measurement accuracy
after calibration was less than 3.44% and the uncertainty
was better than 9.84%,which meets the requirement of 10% of
the national standard, indicating that the system can be used
for real-time online monitoring of sand content in the field.
The currently developed sand content measurement equipment
can measure in the range of 0-20 kg/m³, but the range
beyond 20 kg/m³ cannot be further measured. At high sand
content, the reflectance increase is small and the measurement
is not effective. In the future, the light source and reception
method will be optimized and adjusted to improve the measurement
function of sand content at high concentration.
.. /
±
3
Acknowledgments
This process won the special fund project for National Key
R&D Program Project-Long-term Service Monitoring Sensing
System and Application of Strategic Port Infrastructure in
Multi-sea Areas (No. SQ2022YFB3200247) and the basic scientific
research business expenses of the central-level public
welfare scientific research institutes in 2021 (No. TKS20210106)
and 2022 (No. TKS20220307) from the Tianjin Academy of Water
Transportation Engineering of the Ministry of Transport.
References
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Xianrui Li (foreveroadli@gmail.com) is an Intermediate Engineer
with the Tianjin Institute of Water Transportation
Engineering Science, Ministry of Transport in Tianjin, China,
where he is engaged in the research of water transport instruments
and the research and development of sensing
equipment. He received a master degree and graduated from
North China Electric Power University, Beijing, China.
Bin Xu (103500653@qq.com) is an Intermediate Engineer with
the Tianjin Institute of Water Transportation Engineering Science,
Ministry of Transport in Tianjin, China, where he is
engaged in research and development of oil pipeline monitoring
and sensing equipment. He received the Ph.D. degree from
Huazhong University of Science and Technology, Wuhan,
China.
Xiaodong Zhang (zhangxd@tju.edu.cn) is a Postdoctoral Student
Tutor for precision instruments and machinery at the
School of Precision Instrument and Optoelectronic Engineering
at Tianjin University in Tianjin, China. He is engaged in
research related to optical free-form surface manufacturing,
hard and brittle material processing, precision measurement,
visual inspection, high-precision industrial field inspection,
artificial intelligence and other areas. He received his Ph.D. degree
from Tianjin University, Tianjin, China.
Wenjun Ni (tgnwj@163.com) is a Senior Engineer and Director
of the Equipment Development Center of the Tianjin Institute
of Water Transport Engineering Science, Ministry of Transport
in Tianjin, China. He is engaged in research and development
of water transport equipment and precision sensors. He received
a bachelor's degree from Harbin University of Science
and Technology in Harbin, China.
September 2023
IEEE Instrumentation & Measurement Magazine
41

IEEE Instrumentation & Measurement - September 2023

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