Eddy current probe with three-phase excitation and integrated array tunnel magnetoresistance sensors

N Zhang, C Ye, L Peng, Y Tao - IEEE Transactions on industrial …, 2020 - ieeexplore.ieee.org
Detecting defects in metal structures quickly and robustly is critical to maintaining safe
operation in industry. This work discloses an eddy current (EC) testing probe with coils …

High-density large-scale TMR sensor array for magnetic field imaging

C Ye, Y Wang, Y Tao - IEEE Transactions on Instrumentation …, 2018 - ieeexplore.ieee.org
Magnetic field imaging (MFI) is widely used in electromagnetic nondestructive evaluation
(ENDE). This paper presents a high-density, large-scale tunneling magnetoresistance …

Measurement of permeability for ferrous metallic plates using a novel lift-off compensation technique on phase signature

M Lu, R Huang, W Yin, Q Zhao… - IEEE Sensors Journal, 2019 - ieeexplore.ieee.org
Lift-off of sensor affects the prediction of electromagnetic properties for both ferrous and non-
ferrous steel plates. In this paper, we developed a strategy to address this issue for ferrous …

Novel rotating current probe with GMR array sensors for steam generate tube inspection

C Ye, Y Huang, L Udpa, SS Udpa - IEEE Sensors Journal, 2016 - ieeexplore.ieee.org
This paper presents a novel probe design that uses a rotating current excitation scheme and
giant magnetoresi-stance (GMR) sensors for steam generator tube inspection. Rotating eddy …

Methods of controlling lift-off in conductivity invariance phenomenon for eddy current testing

Z **, Y Meng, R Yu, R Huang, M Lu, H Xu… - IEEE …, 2020 - ieeexplore.ieee.org
Previously, a conductivity invariance phenomena (CIP) has been discovered–at a certain lift-
off, the inductance change of the sensor due to a test sample is immune to conductivity …

Optimized differential self-inductance displacement sensor for magnetic bearings: Design, analysis and experiment

K Wang, L Zhang, Y Le, S Zheng, B Han… - IEEE Sensors …, 2017 - ieeexplore.ieee.org
The miniaturization requirements have been put forward to the sensors for the development
of the modern industry. However, the traditional inductive displacement sensor applied to …

Experimental investigation of a Johnson noise thermometry using GMR sensor for electric vehicle applications

X Liu, C Zheng, C Liu, PWT Pong - IEEE Sensors Journal, 2018 - ieeexplore.ieee.org
A new temperature measurement method using a giant magnetoresistance (GMR) sensor
based on Johnson noise thermometry (JNT) is proposed in this paper. This paper presents …

Estimation of surface crack dimensional characteristics by an eddy current method using a single magnetic tunnel junction device

Z **, M Abe, M Oogane, K Fujiwara… - Japanese Journal of …, 2017 - iopscience.iop.org
Eddy current testing plays a significant role in detecting surface defects in a nondestructive
testing field. The magnetoresistive sensors based on magnetic tunnel junction devices …

Angular spectral density and information entropy for eddy current distribution

G Chen, W Zhang - Entropy, 2016 - mdpi.com
Here, a new method is proposed to quantitatively evaluate the eddy current distribution
induced by different exciting coils of an eddy current probe. Probability of energy allocation …

A Magnetic Field Imaging System Based on TMR Sensors for Banknote Recognition

L Wang, J Wu, J Liu, R Mao, M Guan… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
The high sensitivity and MEMS-compatible process of tunneling magnetoresistance (TMR)
sensors provide great opportunities to develop high-resolution magnetic field detection and …