Integrated GMR based Wheel Speed Sensor for Automotive Applications

Kapser, K.; Sterling, John

doi:10.1109/icsens.2007.4388534

Cited by 8 publications

(4 citation statements)

References 2 publications

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“…The resistance is low when the magnetization alignment caused by the external applied magnetic field in the layers is parallel. So under the external magnetic it produces the GMR effect [5].…”

Section: Magnetic Azimuth Measurement Systemmentioning

confidence: 99%

“…The method to determine the data center of RBF basis function can generally be divided into two kinds: first, the data center is selected from the sample input, and often the expansion constant of radial basis function is set as . Such as equation (5) shows, dmax is the maximum distance of the selected data center, M is the number of data centers.…”

Section: Learning Algorithm Of Rbf Neural Networkmentioning

confidence: 99%

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Performance compensation of GMR-based magnetic azimuth measurement system

Zheng

2012

2012 24th Chinese Control and Decision Conference (CCDC)

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The magnetic azimuth is one of the important parameters of the directional navigation. This paper proposes a magnetic azimuth measurement system based on the GMR sensor. With the thoughts of information fusion, we study the performance compensation method of magnetic azimuth measurement system based on the radial basis function (RBF) neural network and the BP neural network, and then establish a coupling disturbance compensation model of the magnetic field and the temperature. The experimental results illustrate that the maximum full-scale error of sensor output without compensation is ±21.3%, and the maximum full-scale error after the coupling compensation of the BP neural network and the RBF neural network are ±2.72% and ±0.52% respectively.

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Section: Magnetic Azimuth Measurement Systemmentioning

confidence: 99%

Section: Learning Algorithm Of Rbf Neural Networkmentioning

confidence: 99%

Performance compensation of GMR-based magnetic azimuth measurement system

Zheng

2012

2012 24th Chinese Control and Decision Conference (CCDC)

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“…Compared with the well established hall sensors xMR sensors offer higher sensitivity and thus allow a more flexible use of the sensors. Furthermore it is possible to combine the sensing element and signal conditioning electronics into one robust, monolithic design [2,3].…”

Section: Introductionmentioning

confidence: 99%

A device model framework for magnetoresistive sensors based on the Stoner–Wohlfarth model

Bruckner

Bergmair

Brueckl

et al. 2015

Journal of Magnetism and Magnetic Materials

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The Stoner-Wohlfarth model provides an efficient analytical model to describe the behavior of magnetic layers within xMR sensors. Combined with a proper description of magneto-resistivity an efficient device model can be derived, which is necessary for an optimal electric circuit design. Parameters of the model are determined by global optimization of an application specific cost function which contains measured resistances for different applied fields. Several application cases are examined and used for validation of the device model. Furthermore the applicability of the SW model is verified by comparison with micromagnetic energy minimization results.

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“…1). The sensing element itself can be realized with Hall sensors [3], anisotropic magnetoresistances (AMR) [4], or giant magnetoresistances (GMR) [5]. Moreover, there are sensors with multiple sensing elements at different position on the die to suppress homogeneous interference fields or to detect the direction of rotation [3].…”

Section: Introductionmentioning

confidence: 99%

Measurement of a multi-pole encoder with a magnetic and coordinate measuring machine

Husstedt

Ausserlechner

2012

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings

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In this work, the magnetic field and the geometry of a multi-pole encoder (pole wheel) are measured with a magnetic and coordinate measuring machine. First, the geometry of the pole wheel is scanned optically, and mechanical manufacturing tolerances are determined. Then, the magnetic field is measured relative to the geometry of the pole wheel. These results show the characteristic of the magnetic field of regular marks and of the reference mark (missing mark). This information is used to determine magnetic parameters of the pole wheel such as the remanence of the magnetized layer, or the angle between two regular marks. Moreover, the symmetry of the magnetic field is compared with the symmetry of the geometry of the pole wheel.

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Integrated GMR based Wheel Speed Sensor for Automotive Applications

Cited by 8 publications

References 2 publications

Performance compensation of GMR-based magnetic azimuth measurement system

Performance compensation of GMR-based magnetic azimuth measurement system

A device model framework for magnetoresistive sensors based on the Stoner–Wohlfarth model

Measurement of a multi-pole encoder with a magnetic and coordinate measuring machine

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