TY - GEN
T1 - Experimental Study of Temperature on Eddy Current Sensor for Clearance Measurement
AU - Zhao, Lingqiang
AU - Lyu, Yaguo
AU - Liu, Zhenxia
AU - Zhou, Yuhao
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2022
Y1 - 2022
N2 - High-precision eddy current sensors are mainly used for measuring the tip clearance of rotating parts of aero-engines in which the ambient temperature is up to 2000 K. The coil impedance value of the eddy current sensor not only reflects the distance from the probe to the conductor, it is also affected by the ambient temperature. Thus, it is necessary to investigate the influence of temperature on the eddy current sensor probe. The experimental research show: when the temperature is lower than 673 K, the temperature has a significant effect on the eddy current sensor gap measurement curve. Otherwise, it’s not. Secondly, it is found that when the ambient temperature is between 573 K and 1273 K, the equivalent resistance of the eddy current sensor increases linearly with temperature, with an average change of 60%, but the average change of its equivalent inductance with temperature is only 5%. In addition, the experimental results also prove that the leaf tip gap eddy current sensor can be used not only to measure the gap, but also to measure the ambient temperature. The eddy current sensor can be used as a multifunction sensor in the engineering application with the corresponding data processing method.
AB - High-precision eddy current sensors are mainly used for measuring the tip clearance of rotating parts of aero-engines in which the ambient temperature is up to 2000 K. The coil impedance value of the eddy current sensor not only reflects the distance from the probe to the conductor, it is also affected by the ambient temperature. Thus, it is necessary to investigate the influence of temperature on the eddy current sensor probe. The experimental research show: when the temperature is lower than 673 K, the temperature has a significant effect on the eddy current sensor gap measurement curve. Otherwise, it’s not. Secondly, it is found that when the ambient temperature is between 573 K and 1273 K, the equivalent resistance of the eddy current sensor increases linearly with temperature, with an average change of 60%, but the average change of its equivalent inductance with temperature is only 5%. In addition, the experimental results also prove that the leaf tip gap eddy current sensor can be used not only to measure the gap, but also to measure the ambient temperature. The eddy current sensor can be used as a multifunction sensor in the engineering application with the corresponding data processing method.
KW - Eddy current
KW - Equivalent resistance
KW - Multifunction sensor
KW - Temperature
KW - Tip clearance
UR - http://www.scopus.com/inward/record.url?scp=85119848185&partnerID=8YFLogxK
U2 - 10.1007/978-981-16-7423-5_6
DO - 10.1007/978-981-16-7423-5_6
M3 - 会议稿件
AN - SCOPUS:85119848185
SN - 9789811674228
T3 - Lecture Notes in Electrical Engineering
SP - 50
EP - 61
BT - Proceedings of the 5th China Aeronautical Science and Technology Conference
PB - Springer Science and Business Media Deutschland GmbH
T2 - 5th China Aviation Science and Technology Conference, 2021
Y2 - 1 January 2021
ER -