Meander anisotropic magnetoresistance bridge geomagnetic sensors

Quynh, L. K.; Tu, Bui Dinh; Thủy, Nguyễn Thị; Viet, D.Q.; Duc, Nguyen Huu; Phung, Anh Tuan; Giang, D.T. Huong

doi:10.1016/j.jsamd.2019.04.007

Cited by 8 publications

(5 citation statements)

References 12 publications

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“…(1) Obtaining the parking space, road information map of the parking lot and the prescribed speed of the vehicle in the parking lot. (2) According to the signal transmitted by the parking space geomagnetic sensor [37], the free parking space is confirmed. The parking lot entrance, the free parking space and the crossroads inside the parking lot are set to be nodes.…”

Section: Anti-congestion Route Planning Based On Dijkstra Algorithm Fmentioning

confidence: 96%

Anti-Congestion Route Planning Scheme Based on Dijkstra Algorithm for Automatic Valet Parking System

Jiang

Hua

2019

Applied Sciences

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Featured Application: This anti-congestion route planning scheme will be used in the automatic valet parking area. It will have outstanding performance in the combination technology of V2X environment and driverless technology.Abstract: Based on the Dijkstra algorithm, with the parking parameters in the static state, the shortest route to each parking space of the parking lot without dynamic influence factors can be calculated. In the new technology background of the combination of the V2X environment and driverless technology, the dynamic influence factors, for example, the lanes occupancy situation caused by parking, can be considered to improve the shortest route with the new scheme in this paper. Then the final route that costs the least time to reach each parking space will be calculated. This is very important for the development of the intelligent transportation system in the parking lot environment.

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Section: Anti-congestion Route Planning Based On Dijkstra Algorithm Fmentioning

confidence: 96%

Anti-Congestion Route Planning Scheme Based on Dijkstra Algorithm for Automatic Valet Parking System

Jiang

Hua

2019

Applied Sciences

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“…The fabricated self-biased sensor unit exhibited a maximum sensitivity of 0.1964 mV/V/Oe. Quynh et al [25] report on the design and fabrication of a micrometersize meander AMR bridge sensor with an effective AMR branch length of 150. This sensor geometry has enabled them to achieve a magnetic sensitivity as high as 1.25 mV Oe −1 (or 0.45 mV/V/Oe).…”

Section: Introductionmentioning

confidence: 99%

A high-sensitive anisotropic magnetoresistive sensor based on hybrid Ta/NiFe/Ta/Al multilayer structure

Zhuo,

Liu,

Feng

et al. 2024

Meas. Sci. Technol.

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High sensitivity is crucial for anisotropic magnetoresistive (AMR) sensors in industrial applications. In this paper, a high- sensitive AMR sensor based on magnetoresistive thin films with Ta/NiFe/Ta/Al four-layer structure is proposed and fabricated. Firstly, the structural parameters were optimized by finite element analysis. Secondly, thin film samples and AMR sensors were prepared. Through the analysis and characterization of reluctance change rate, hysteresis loop, X-ray diffraction and surface morphology and structure, the process parameters were optimized. Finally, the sensor was connected to the designed external circuit, and its technical parameters were tested in a magnetic field test system. The results show that the prepared AMR sensor performs well. It has a high sensitivity of 1.27 mV/V/Oe, a low bridge offset voltage of ±1.64 mV/V, and a low temperature coefficient of sensitivity of -0.102 %/℃. The results contribute to the future development of AMR magnetic field sensor chips.

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“…Here, AMR sensors become competitive when compared with TMR and GMR ones due to their particularly low 1/ f noise. , Moreover, TMR and GMR spintronic devices involve a much more complex fabrication than AMR ones, as the latter can be composed of a single material tailored on top of a substrate, making this technology highly suitable for industrial implementation. Indeed, there is a continuous investigation to improve the performance of magnetic field sensors by different means. − …”

Section: Introductionmentioning

confidence: 99%

“…Typically, they use polycrystalline ferromagnetic permalloy (Py) films with uniaxial magnetic anisotropy induced by exchange bias or shape due to the high AMR ratio and aluminum barber poles to linearize the sensor response. Recent studies using Py AMR-based sensors report sensitivities of 500%/T 13 and 400%/T 11 at room temperature. These features highlight the potential of AMR sensors for especially demanding applications such as the detection of biomagnetic signals.…”

Section: Introductionmentioning

confidence: 99%

High-Performance Implantable Sensors based on Anisotropic Magnetoresistive La_0.67Sr_0.33MnO₃ for Biomedical Applications

Vera

Martínez

Enger

et al. 2023

ACS Biomater. Sci. Eng.

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We present the design, fabrication, and characterization of an implantable neural interface based on anisotropic magnetoresistive (AMR) magnetic-field sensors that combine reduced size and high performance at body temperature. The sensors are based on La 0.67 Sr 0.33 MnO 3 (LSMO) as a ferromagnetic material, whose epitaxial growth has been suitably engineered to get uniaxial anisotropy and large AMR output together with low noise even at low frequencies. The performance of LSMO sensors of different film thickness and at different temperatures close to 37 °C has to be explored to find an optimum sensitivity of ∼400%/T (with typical detectivity values of 2 nT•Hz −1/2 at a frequency of 1 Hz and 0.3 nT•Hz −1/2 at 1 kHz), fitted for the detection of low magnetic signals coming from neural activity. Biocompatibility tests of devices consisting of submillimeter-size LSMO sensors coated by a thin poly(dimethyl siloxane) polymeric layer, both in vitro and in vivo, support their high suitability as implantable detectors of low-frequency biological magnetic signals emerging from heterogeneous electrically active tissues.

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Meander anisotropic magnetoresistance bridge geomagnetic sensors

Cited by 8 publications

References 12 publications

Anti-Congestion Route Planning Scheme Based on Dijkstra Algorithm for Automatic Valet Parking System

Anti-Congestion Route Planning Scheme Based on Dijkstra Algorithm for Automatic Valet Parking System

A high-sensitive anisotropic magnetoresistive sensor based on hybrid Ta/NiFe/Ta/Al multilayer structure

High-Performance Implantable Sensors based on Anisotropic Magnetoresistive La_0.67Sr_0.33MnO₃ for Biomedical Applications

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Meander anisotropic magnetoresistance bridge geomagnetic sensors

Cited by 8 publications

References 12 publications

Anti-Congestion Route Planning Scheme Based on Dijkstra Algorithm for Automatic Valet Parking System

Anti-Congestion Route Planning Scheme Based on Dijkstra Algorithm for Automatic Valet Parking System

A high-sensitive anisotropic magnetoresistive sensor based on hybrid Ta/NiFe/Ta/Al multilayer structure

High-Performance Implantable Sensors based on Anisotropic Magnetoresistive La0.67Sr0.33MnO3 for Biomedical Applications

Contact Info

Product

Resources

About

High-Performance Implantable Sensors based on Anisotropic Magnetoresistive La_0.67Sr_0.33MnO₃ for Biomedical Applications