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Temperature stability of the transformer position transducer for pneumatic cylinder
(Elsevier, 2020)
This paper presents the analysis and design of a transformer position sensor for pneumatic cylinder considering temperature stability. Two solenoid coils as excitation coil and pick up coil around cylinder are used for ...
Eddy current speed sensor with magnetic shielding
(Elsevier, 2020)
This paper presents the design and analysis of a new eddy current speed sensor with ferromagnetic shielding. Aluminum and solid iron are considered for the moving part. One excitation coil and two antiserially connected ...
Effect of Stress Induced Anisotropy on the Noise of Ring-core Fluxgate
(IEEE, 2015)
In this paper we show how an anisotropy perpendicular to the direction of excitation is favourable to obtain low noise in fluxgate sensors. We produced ring cores by electroplating NiFe thin film (6 μm) over a bended copper ...
AMR Proximity Sensor With Inherent Demodulation
(IEEE Sensors Council, 2014)
Our novel position sensor is based on the combination of the eddy-current and permeability effects. The primary field is excited by a coil, but instead of induction coil, the sensing part uses anisotropic magnetoresistor ...
Demagnetization of Current Transformers Using PWM Burden
(IEEE, 2015)
Current transformers (CTs) show large errors when they are magnetized by dc current. This error can be reduced after proper demagnetization. One of the methods to demagnetize the CT is to increase the core flux by increasing ...
Experimental Comparison of the Low-Frequency Noise of Small-Size Magnetic Sensors
(IEEE, 2017)
Small-size ac magnetic-field sensors are used for nondestructive testing (NDT), magnetic particle detection, and other applications, which require high spatial resolution. Up to now, inductive coils dominated this area, ...
A Fluxgate Current Sensor With an Amphitheater Busbar
(IEEE, 2016)
Large dc and ac electric currents are often measured by open-loop sensors without a magnetic yoke. A widely used configuration
uses a differential magnetic sensor inserted into a hole in a flat busbar. The use of a ...
Calibration of the 3D Coil System's Orthogonality
(IEEE, 2013)
Two methods were tested for calibration procedures of the 3D coil system which is used as a source part of the magnetic tracker. Precise magnetometer’s positions with respect to the coil system were used for determining ...
Metal Detector Signal Imprints of Detected Objects
(IEEE, 2013)
Humanitarian de-mining missions are activities in which an operator safety and time consumption are key issues. To increase a discrimination ability of ATMID metal detector, which we have been using, we extended the ...
A Magnetic Distance Sensor with High Precision
(Elsevier Science, 2012)
A magnetic distance sensor working at very low frequency has been developed to measure distances up to 1 m. The principle is similar to that of the 3-D magnetic tracker, but the system is optimized to minimize the error ...