TY - GEN
T1 - Simulation and Analysis of Position Change Deviation of Equivalent Measurement of Time Domain Transient Magnetic Field Differential Probe
AU - Li, Fadong
AU - Cao, Ronggang
AU - Li, Jiawu
AU - Cao, Yuxi
AU - Zhou, Yu
AU - Zhang, Anqi
N1 - Publisher Copyright:
© 2023, Beijing Paike Culture Commu. Co., Ltd.
PY - 2023
Y1 - 2023
N2 - This paper used Ls-Dyna to simulate the measurement process of the differential probe in the time-domain transient magnetic field, then figure out the displacement-time and velocity-time data measured by the differential probes. There is a variation in the equivalent measurement position of the differential probes by comparing the displacement data of the probes with the corresponding simulation values. From the simulation results. In the previous phase of the armature acceleration, the probe displacement deviates significantly from the simulated value; with the increase of the armature velocity, this value fluctuates; at the telophase of acceleration, the displacement difference is negligible. The equivalent displacement deviation of the corresponding simulation value shows positive and negative fluctuations based on the displacement difference of adjacent probes. Excluding extreme cases, the absolute value of the deviation is within 5%; at the acceleration telophase, it is within 2%. This deviation makes the output of the differential probes inaccurate in the time domain, which is significant for the related experiments when measuring the transient information of the armature motion in the electromagnetic launch by the differential probe.
AB - This paper used Ls-Dyna to simulate the measurement process of the differential probe in the time-domain transient magnetic field, then figure out the displacement-time and velocity-time data measured by the differential probes. There is a variation in the equivalent measurement position of the differential probes by comparing the displacement data of the probes with the corresponding simulation values. From the simulation results. In the previous phase of the armature acceleration, the probe displacement deviates significantly from the simulated value; with the increase of the armature velocity, this value fluctuates; at the telophase of acceleration, the displacement difference is negligible. The equivalent displacement deviation of the corresponding simulation value shows positive and negative fluctuations based on the displacement difference of adjacent probes. Excluding extreme cases, the absolute value of the deviation is within 5%; at the acceleration telophase, it is within 2%. This deviation makes the output of the differential probes inaccurate in the time domain, which is significant for the related experiments when measuring the transient information of the armature motion in the electromagnetic launch by the differential probe.
KW - Differential probe
KW - Electromagnetic launch
KW - Positional deviation
KW - Railgun
UR - http://www.scopus.com/inward/record.url?scp=85152624780&partnerID=8YFLogxK
U2 - 10.1007/978-981-99-0357-3_124
DO - 10.1007/978-981-99-0357-3_124
M3 - Conference contribution
AN - SCOPUS:85152624780
SN - 9789819903566
T3 - Lecture Notes in Electrical Engineering
SP - 1198
EP - 1213
BT - The Proceedings of the 17th Annual Conference of China Electrotechnical Society
A2 - Yang, Qingxin
A2 - Li, Jian
A2 - Xie, Kaigui
A2 - Hu, Jianlin
PB - Springer Science and Business Media Deutschland GmbH
T2 - 17th Annual Conference of China Electrotechnical Society, CES 2022
Y2 - 17 September 2022 through 18 September 2022
ER -