ArticleSensors (Basel, Switzerland)2018
Gradient-Type Magnetoelectric Current Sensor with Strong Multisource Noise Suppression.
Article in Sensors (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- RAMM: A Robotic, Autonomous Magnetic field Mapper.HardwareX · 2025Article
- Magnetoelectric Sensor Operating inSensors (Basel, Switzerland) · 2024Article
- A Vectorial Current Density Imaging Method Based on Magnetic Gradient Tensor.Sensors (Basel, Switzerland) · 2023Article
- Magnetically Tuned Impedance and Capacitance for FeGa/PZT Bilayer Composite under Bending and Longitudinal Vibration Modes.Sensors (Basel, Switzerland) · 2022Article
- A High-Resolution Electric Current Sensor Employing a Piezoelectric Drum Transducer.Micromachines · 2021Article
- Self-Biased Bidomain LiNbOSensors (Basel, Switzerland) · 2020Article
- Rectangular Array Electric Current Transducer with Integrated Fluxgate Sensors.Sensors (Basel, Switzerland) · 2019Article
- High Accuracy Open-Type Current Sensor with a Differential Planar Hall Resistive Sensor.Sensors (Basel, Switzerland) · 2018Article
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Authors and funding
2 authors.
Funding
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Abstract
A novel gradient-type magnetoelectric (ME) current sensor operating in magnetic field gradient (MFG) detection and conversion mode is developed based on a pair of ME composites that have a back-to-back capacitor configuration under a baseline separation and a magnetic biasing in an electrically-shielded and mechanically-enclosed housing. The physics behind the current sensing process is the product effect of the current-induced MFG effect associated with vortex magnetic fields of current-carrying cables (i.e., MFG detection) and the MFG-induced ME effect in the ME composite pair (i.e., MFG conversion). The sensor output voltage is directly obtained from the gradient ME voltage of the ME composite pair and is calibrated against cable current to give the current sensitivity. The current sensing performance of the sensor is evaluated, both theoretically and experimentally, under multisource noises of electric fields, magnetic fields, vibrations, and thermals. The sensor combines the merits of small nonlinearity in the current-induced MFG effect with those of high sensitivity and high common-mode noise rejection rate in the MFG-induced ME effect to achieve a high current sensitivity of 0.65-12.55 mV/A in the frequency range of 10 Hz-170 kHz, a small input-output nonlinearity of <500 ppm, a small thermal drift of <0.2%/℃ in the current range of 0-20 A, and a high common-mode noise rejection rate of 17-28 dB from multisource noises.
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