TY - JOUR
T1 - A dynamic method for online measurement and calibrating with Lorentz force velocimetry
AU - Zheng, Jincan
AU - Li, Rongzhe
AU - Guo, Shengrong
AU - Kolesnikov, Yurii
AU - Ni, Mingjiu
AU - Wang, Xiaodong
N1 - Publisher Copyright:
© 2024 IOP Publishing Ltd.
PY - 2024/6
Y1 - 2024/6
N2 - Our previous study (Zheng et al 2020 Metall. Mater. Trans. B 51 558-69; Zheng et al 2020 Acta Metall. Sin. 56 929-36) reports a non-invasive in-situ measurement technology using Lorentz force velocimetry (LFV) to quantitatively measure the meniscus velocity of molten steel online. However, effective signal recognition from complex environment noise and determination of zero-point calibration in harsh metallurgical processing is an essentially challenging task and indeed needs further exploration. In this paper, a method of combining double probe arrangement with real-time differential processing technology was proposed, the twin design structure not only enables the measurement of ∼mN Lorentz forces, but also has significant characteristics of environmental tolerance. The Lorentz force signal caused by conductor motion can be accurately calculated through a differential method, meaning that the problem of zero compensation in industrial online measurement can be effectively overcome. Moreover, based on the functional correlation between the Lorentz force and the parameter of the conductor to be measured, a method of the probes moving variably and actively and their data difference ratio processing was adopted, so as to achieve dynamic calibration during online measurement. This measurement strategy provides a new approach for LFV to achieve online dynamic measurement and online calibration, and provides technical support for electromagnetic measurement technology towards engineering applications.
AB - Our previous study (Zheng et al 2020 Metall. Mater. Trans. B 51 558-69; Zheng et al 2020 Acta Metall. Sin. 56 929-36) reports a non-invasive in-situ measurement technology using Lorentz force velocimetry (LFV) to quantitatively measure the meniscus velocity of molten steel online. However, effective signal recognition from complex environment noise and determination of zero-point calibration in harsh metallurgical processing is an essentially challenging task and indeed needs further exploration. In this paper, a method of combining double probe arrangement with real-time differential processing technology was proposed, the twin design structure not only enables the measurement of ∼mN Lorentz forces, but also has significant characteristics of environmental tolerance. The Lorentz force signal caused by conductor motion can be accurately calculated through a differential method, meaning that the problem of zero compensation in industrial online measurement can be effectively overcome. Moreover, based on the functional correlation between the Lorentz force and the parameter of the conductor to be measured, a method of the probes moving variably and actively and their data difference ratio processing was adopted, so as to achieve dynamic calibration during online measurement. This measurement strategy provides a new approach for LFV to achieve online dynamic measurement and online calibration, and provides technical support for electromagnetic measurement technology towards engineering applications.
KW - LFV
KW - dynamic-calibration
KW - industrial measurement
KW - zero-compensation
UR - https://www.scopus.com/pages/publications/85187540064
U2 - 10.1088/1361-6501/ad2f06
DO - 10.1088/1361-6501/ad2f06
M3 - 文章
AN - SCOPUS:85187540064
SN - 0957-0233
VL - 35
JO - Measurement Science and Technology
JF - Measurement Science and Technology
IS - 6
M1 - 065008
ER -