Parasitic Capacitances, Inductive Coupling, and High-Frequency Behavior of AMR Sensors

Angular displacement sensor for gear position detection based on the tunneling magnetoresistance effect

“…In recent years, micromagnetic sensors have been considered as a highly reliable solution for sensing angular position due to their high resolution, low cost, good linearity and easy integration. The widely used micromagnetic sensors mainly include Hall effect sensors [23][24][25], anisotropic magnetoresistance (AMR) effect sensors [26][27][28], giant magnetoresistance (GMR) effect sensors [29][30][31] and tunneling magnetoresistance (TMR) effect sensors [32][33][34]. To improve the sensitivity, sensors that use a Hall element as the sensitive element need to adopt a polymagnetic ring structure, which increases the volume and weight of the sensor.…”

Estimation of Parasitic Capacitance of Common Mode Noise in Vehicular Applications: An Unscented Kalman Filter-Based Approach

“…Two basic approaches for offline measurement of the parasitic capacitance have been proposed, which are based on the time domain reflectometry (TDR) [23] and impedance spectroscopy [24]. In [25], the estimation of the parasitic capacitance using the Least Squares (LS) linear regression technique has been addressed, where the LS method is applied to a set of basic measurements. In addition to the measurement-based approaches, some simulation-based methods have also been proposed, which include methods based on printed circuit board modeling and using Maxwell Q3D software [26].…”