ArticleSensors (Basel, Switzerland)2020
High Sensitivity Differential Giant Magnetoresistance (GMR) Based Sensor for Non-Contacting DC/AC Current Measurement.
Article in Sensors (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 44 citations in OpenAlex.
- Inductive Microsensor for Magnetic Field Detection: Application in Wireless Power Transfer Systems.Sensors (Basel, Switzerland) · 2026Article
- Magnetometry for Agriculture and Animal Systems: From Classical Sensors to Quantum-Enabled Biosensing.Biosensors · 2026Review
- A Novel Open-Loop Current Sensor Based on Multiple Spin Valve Sensors and Magnetic Shunt Effect with Position Deviation Calibration.Micromachines · 2025Article
- Non-Contact Current Sensing System Based on the Giant Magnetoimpedance Effect of CoFeNiSiB Amorphous Ribbon Meanders.Micromachines · 2024Article
- Multisensory Spatial Analysis and NDT Active Magnetic Method for Quick Area Testing of Reinforced Concrete Structures.Materials (Basel, Switzerland) · 2023Article
- Design and Optimization of Multi-Stage TMR Sensors for Power Equipment AC/DC Leakage Current Detection.Sensors (Basel, Switzerland) · 2023Article
- Bridge Resistance Compensation for Noise Reduction in a Self-Balanced PHMR Sensor.Sensors (Basel, Switzerland) · 2021Article
- Tunneling Magnetoresistance DC Current Transformer for Ion Beam Diagnostics.Sensors (Basel, Switzerland) · 2021Article
- Low Field Optimization of a Non-Contacting High-Sensitivity GMR-Based DC/AC Current Sensor.Sensors (Basel, Switzerland) · 2021Article
- Magnetoelectric Vortex Magnetic Field Sensors Based on the Metglas/PZT Laminates.Sensors (Basel, Switzerland) · 2020Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
This paper presents the design and implementation of a high sensitivity giant magnetoresistance (GMR) based current sensor with a broad range of applications. The novelty of our approach consists in using a double differential measurement system, based on commercial GMR sensors, with an adjustable biasing system used to linearize the field response of the system. The work aims to act as a fully-operational proof of concept application, with an emphasis on the mode of operation and methods to improve the sensitivity and linearity of the measurement system. The implemented system has a broad current measurement range from as low as 75 mA in DC and 150 mA in AC up to 4 A by using a single setup. The sensor system is also very low power, consuming only 6.4 mW. Due to the way the sensors are polarized and positioned above the U-shaped conductive band through which the current to be measured is flowing, the differential setup offers a sensitivity of about between 0.0272 to 0.0307 V/A (signal from sensors with no amplifications), a high immunity to external magnetic fields, low hysteresis effects of 40 mA, and a temperature drift of the offset of about -2.59×10
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Registered trials
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