Now showing items 1-10 of 50
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 ...
Contribution to the Ring-Core Fluxgate Theory
(The Royal Swedisch Academy of Sciences, 1989)
Existing theories for open-core fluxgate are not fitting experimental results in the case of ring-core sensors. Simple description based on transfer functions which takes into account the interaction between two half-cores ...
Three-Phase Busbar Current Transducer
A true three-phase 1000 A busbar current transducer is based on six micro-fluxgate sensors. Instead of using three independent single-phase current transducers, we use the full information from each sensor. Two TI DRV425 ...
AC/DC Current Transformer With Single Winding
AC/DC Current Transformer With Single Winding is a device which allows simultaneously measure AC and DC current using fluxgate effect
Contactless measurement of electric current using magnetic sensors
(Oldenbourg Verlag, 2019)
We review recent advances in magnetic sensors for DC/AC current transducers, especially novel AMR sensors and integrated fluxgates, and we make critical comparison of their properties. Most contactless electric current ...
The apparent permeability and the amplification factor of magnetic wires and wire arrays
We have calculated and plotted the apparent permeability and the demagnetization factor of single magnetic wires. We have also confirmed the accuracy of the analytical formula for the conversion between the apparent ...
Measurement of DC Currents in the Power Grid by Current Transformer
DC currents in power grids are mainly caused by geomagnetic activity especially during magnetic storms. It is desirable to monitor these currents to prevent saturation of transformers, which may cause blackout. However, ...
Long-Range Magnetic Tracking System
(IEEE Sensors Council, 2015)
This paper presents a new long-range full 3-D magnetic tracking system for horizontal directional drilling, and describes its performance. The system is able to determine the full 3-D mutual position of the receiver with ...
Experimental Comparison of the Low-Frequency Noise of Small-Size Magnetic Sensors
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 3-Phase Current Transducer based on microfluxgate sensors
Novel 3-phase DC/AC current transducer for 3-phase current lines is based on 8 integrated fluxgate sensors. Using full information from each sensor rather than gradiometric pairs, we suppress crosstalk between individual ...