Designing a Spintronic Based Magnetoresistive Bridge Sensor for Current Measurement and Low Field Sensing
An exchanged-biased anisotropic magnetoresistance bridge sensor for low currents measurement is designed and implemented. The sensor has a simple construction (single mask) and is based on results from micromagnetic simulations. For increasing the sensitivity of the sensor, the magnetic field genera...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-11-01
|
| Series: | Electronics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-9292/11/23/3888 |
| _version_ | 1797463438065139712 |
|---|---|
| author | Cristian Mușuroi Marius Volmer Mihai Oproiu Jenica Neamtu Elena Helerea |
| author_facet | Cristian Mușuroi Marius Volmer Mihai Oproiu Jenica Neamtu Elena Helerea |
| author_sort | Cristian Mușuroi |
| collection | DOAJ |
| description | An exchanged-biased anisotropic magnetoresistance bridge sensor for low currents measurement is designed and implemented. The sensor has a simple construction (single mask) and is based on results from micromagnetic simulations. For increasing the sensitivity of the sensor, the magnetic field generated by the measurement current passing through the printed circuit board trace is determined through an analytical method and, for comparative analysis, finite elements method simulations are used. The sensor performance is experimentally tested with a demonstrator chip. Four case studies are considered in the analytical method: neglecting the thickness of the trace, dividing the thickness of the trace in several layers, and assuming a finite or very long conductive trace. Additionally, the influence of several adjacent traces in the sensor area is evaluated. The study shows that the analytical design method can be used for optimizing the geometric selectivity of a non-contacting magnetoresistive bridge sensor setup in single trace, differential, and multi-trace (planar coil) configurations. Further, the results can be applied for developing highly performant magnetoresistance sensors and optimizations for low field detection, small dimensions, and low costs. |
| first_indexed | 2024-03-09T17:50:42Z |
| format | Article |
| id | doaj.art-bc1eedf6413b41deb46bdc50a8fd573d |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-09T17:50:42Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-bc1eedf6413b41deb46bdc50a8fd573d2023-11-24T10:47:12ZengMDPI AGElectronics2079-92922022-11-011123388810.3390/electronics11233888Designing a Spintronic Based Magnetoresistive Bridge Sensor for Current Measurement and Low Field SensingCristian Mușuroi0Marius Volmer1Mihai Oproiu2Jenica Neamtu3Elena Helerea4Department of Electrical Engineering and Applied Physics, Transilvania University of Brasov, Blvd. Eroilor 29, 500036 Brasov, RomaniaDepartment of Electrical Engineering and Applied Physics, Transilvania University of Brasov, Blvd. Eroilor 29, 500036 Brasov, RomaniaDepartment of Electrical Engineering and Applied Physics, Transilvania University of Brasov, Blvd. Eroilor 29, 500036 Brasov, RomaniaNational Institute for Research and Development in Electrical Engineering, Splaiul Unirii 313, 030138 Bucharest, RomaniaDepartment of Electrical Engineering and Applied Physics, Transilvania University of Brasov, Blvd. Eroilor 29, 500036 Brasov, RomaniaAn exchanged-biased anisotropic magnetoresistance bridge sensor for low currents measurement is designed and implemented. The sensor has a simple construction (single mask) and is based on results from micromagnetic simulations. For increasing the sensitivity of the sensor, the magnetic field generated by the measurement current passing through the printed circuit board trace is determined through an analytical method and, for comparative analysis, finite elements method simulations are used. The sensor performance is experimentally tested with a demonstrator chip. Four case studies are considered in the analytical method: neglecting the thickness of the trace, dividing the thickness of the trace in several layers, and assuming a finite or very long conductive trace. Additionally, the influence of several adjacent traces in the sensor area is evaluated. The study shows that the analytical design method can be used for optimizing the geometric selectivity of a non-contacting magnetoresistive bridge sensor setup in single trace, differential, and multi-trace (planar coil) configurations. Further, the results can be applied for developing highly performant magnetoresistance sensors and optimizations for low field detection, small dimensions, and low costs.https://www.mdpi.com/2079-9292/11/23/3888magnetoresistive sensorsanisotropic magnetoresistancecurrent sensorsplanar Hall effectexchange biasmagnetic field modeling |
| spellingShingle | Cristian Mușuroi Marius Volmer Mihai Oproiu Jenica Neamtu Elena Helerea Designing a Spintronic Based Magnetoresistive Bridge Sensor for Current Measurement and Low Field Sensing Electronics magnetoresistive sensors anisotropic magnetoresistance current sensors planar Hall effect exchange bias magnetic field modeling |
| title | Designing a Spintronic Based Magnetoresistive Bridge Sensor for Current Measurement and Low Field Sensing |
| title_full | Designing a Spintronic Based Magnetoresistive Bridge Sensor for Current Measurement and Low Field Sensing |
| title_fullStr | Designing a Spintronic Based Magnetoresistive Bridge Sensor for Current Measurement and Low Field Sensing |
| title_full_unstemmed | Designing a Spintronic Based Magnetoresistive Bridge Sensor for Current Measurement and Low Field Sensing |
| title_short | Designing a Spintronic Based Magnetoresistive Bridge Sensor for Current Measurement and Low Field Sensing |
| title_sort | designing a spintronic based magnetoresistive bridge sensor for current measurement and low field sensing |
| topic | magnetoresistive sensors anisotropic magnetoresistance current sensors planar Hall effect exchange bias magnetic field modeling |
| url | https://www.mdpi.com/2079-9292/11/23/3888 |
| work_keys_str_mv | AT cristianmusuroi designingaspintronicbasedmagnetoresistivebridgesensorforcurrentmeasurementandlowfieldsensing AT mariusvolmer designingaspintronicbasedmagnetoresistivebridgesensorforcurrentmeasurementandlowfieldsensing AT mihaioproiu designingaspintronicbasedmagnetoresistivebridgesensorforcurrentmeasurementandlowfieldsensing AT jenicaneamtu designingaspintronicbasedmagnetoresistivebridgesensorforcurrentmeasurementandlowfieldsensing AT elenahelerea designingaspintronicbasedmagnetoresistivebridgesensorforcurrentmeasurementandlowfieldsensing |