A5068491494- Inertial Sensor and Navigation
- Magnetic Field Sensors Techniques
- Non-Destructive Testing Techniques
- Ultrasonics and Acoustic Wave Propagation
- Geophysics and Gravity Measurements
- Welding Techniques and Residual Stresses
- Advanced Sensor and Energy Harvesting Materials
- Multiferroics and related materials
- Magnetic properties of thin films
- Advanced MEMS and NEMS Technologies
- Target Tracking and Data Fusion in Sensor Networks
- Indoor and Outdoor Localization Technologies
- Atomic and Subatomic Physics Research
- Geophysical Methods and Applications
- Sensor Technology and Measurement Systems
- Ferroelectric and Piezoelectric Materials
- Geomagnetism and Paleomagnetism Studies
- Magnetic Bearings and Levitation Dynamics
- Thermography and Photoacoustic Techniques
- Quantum and electron transport phenomena
- Gas Sensing Nanomaterials and Sensors
- Magnetic and transport properties of perovskites and related materials
- MXene and MAX Phase Materials
- Magneto-Optical Properties and Applications
- Geophysical and Geoelectrical Methods
National University of Defense Technology
2016-2025
Changsha University of Science and Technology
2018-2022
Space Engineering University
2020
China Academy Of Machinery Science & Technology (China)
2016
Argonne National Laboratory
2010-2013
Northwestern University
2010-2013
Newcastle University
2012-2013
State Key Laboratory of Transducer Technology
2011
Soochow University
2011
University of Defence
2011
With the growing interest to use engineering composite structures, much attention is devoted development of non-destructive testing (NDT) techniques for impact evaluation. Eddy current pulsed thermography (ECPT) an emerging NDT technique, which firstly investigated crack evaluation in carbon fiber reinforced plastic (CFRP) 2011 and preliminary results have shown significant potential. However, research limited by experimental conditions. In this work, detection mechanism structure are...
In this paper the total focusing method, so called gold standard in classical beamforming, is compared with widely used time-reversal MUSIC super resolution technique terms of its ability to resolve closely spaced scatterers a solid. The algorithms are tested simulated and experimental array data, each containing different noise levels. performance evaluated lateral sensitivity noise. It shown that for weak situation (SNR>20 dB), provides significantly enhanced when breaking diffraction...
The eddy current probe, which is flexible, array typed, highly sensitive and capable of quantitative inspection one practical requirement in nondestructive testing also a research hotspot. A novel flexible planar sensor for the microcrack presentation critical parts airplanes developed this paper. Both exciting sensing coils are etched on polyimide films using printed circuit board technique, thus conforming to complex geometric structures. In order serve needs condition-based maintenance...
Abstract The perception of fish locomotion is important for understanding their adaptive behaviors and ethological characteristics. However, the main strategy used extracting attitudes involves use a vision-based monitoring system, which limited in its range observation cannot perform tracking long times. Here, we report wearable tagging electronic device, referred to as an underwater vest, capture surrounding flow field disturbances triggered by swimming or momentary postural changes. All...
The magnetometer array is effective for magnetic object detection and localization. Calibration important to improve the accuracy of array. A sensor built with four three-axis DM-050 fluxgate magnetometers designed, which connected by a cross aluminum frame. In order array, calibration process presented. includes calibration, coordinate transformation misalignment calibration. system consists GSM-19T proton magnetometer, two-dimensional nonmagnetic rotation platform, 12 V-dc portable power...
The magnetometer error and distortion magnetic field of an inertial navigation system are the major two factors influencing measurement accuracy geomagnetic vector information systems. calibration compensation methods proposed in this letter. As a first step, model for three-axis is established, nonlinear least square algorithm used to estimate thoroughly parameters. Then, based on relative attitude proposed, which only four groups needed precisely Finally, whole anomaly detection....
Intrinsic spatial inhomogeneity or phase separation in cuprates, manganites, etc., related to electronic and/or magnetic properties, has attracted much attention due its significance fundamental physics and applications. Here we use scanning Kerr microscopy electron with polarization analysis situ electric fields reveal the existence of intrinsic response an field on a mesoscale coexistence looplike (nonvolatile) butterfly-like (volatile) behaviors Co40Fe40B20/Pb(Mg1/3Nb2/3)0.7Ti0.3O3...
Impedance measuring circuits play a crucial role in an electrical impedance tomography system, which capacitance and resistance need to be measured accurately at high speed. Several based on phase-sensitive demodulation (PSD) have been designed, tested, presented this paper. The measurement error is analyzed, the mismatch of considered main cause error. A new circuit with dual-frequency PSD has designed solve problem. It proven by experiment that can used measure both uncertainty less than 0.5%.
The 1/f resistance noise is one of the main sources giant magnetoresistive sensors, which will cause intrinsic detection limit at low frequency. To suppress this noise, a vertical motion flux modulation (VMFM) scheme with high efficiency and simple structures proposed. And electrical coupling effect investigated an equivalent circuit model. We found that disturbance can be suppressed by improving symmetry VMFM sensors. sensors has reached 18.8%, higher than most prototype other schemes.
Nonlinearity is a prominent limitation to the calibration performance of vector magnetometers. A new model proposed suppress nonlinearity magnetometers and improve performance, in which coefficients scale factors are considered. The experimental system mainly consists three-axis fluxgate magnetometer (MAG3300), 2D nonmagnetic rotation equipment, proton (CZM-3), equipment used change position magnetometer, scalar value magnetic field obtained with considered be true value. principle this...
Magnetic anomaly detection (MAD) is a useful method for the of visually obscured ferromagnetic targets. However, when prior information target signal lacking or inaccurate, performance traditional based on orthonormal basis functions may degrade rapidly. Therefore, novel parallel stochastic resonance (PSR) system proposed, which named PSR detector. This uses to improve signal-to-noise ratio (SNR) and then reveals signals by energy Experimental results show that probability detector reaches...
A broad linear range of ionic flexible sensors (IFSs) with high sensitivity is vital to guarantee accurate pressure acquisition and simplify back-end circuits. However, the issue that gradually decreases as applied increases hinders linearity over whole working limits its wide-ranging application. Herein, we design a two-scale random microstructure gel film rich porosity rough surface. It buffer space during compression, enabling stress deformation be more uniform, which makes sure maintains...