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2. Current sensing - Wikipedia

   en.wikipedia.org/wiki/Current_sensing

   Fiber optic current sensor, using an interferometer to measure the phase change in the light produced by a magnetic field. Rogowski coil, electrical device for measuring alternating current (AC) or high speed current pulses. Giant Magnetoresistance(GMR): Magnetic field sensor suitable for AC & DC Current with higher accuracy than Hall Effect ...

3. Rogowski coil - Wikipedia

   en.wikipedia.org/wiki/Rogowski_coil

   The picture shows a Rogowski coil encircling a current-carrying cable. The output of the coil, v(t), is connected to a lossy integrator circuit to obtain a voltage V out (t) that is proportional to I(t). A Rogowski coil, named after Walter Rogowski, is an electrical device for measuring alternating current (AC) or high

4. Fiber-optic current sensor - Wikipedia

   en.wikipedia.org/wiki/Fiber-optic_current_sensor

   A fiber-optic current sensor (FOCS) is a device designed to measure direct current. Utilizing a single-ended optical fiber wrapped around the current conductor, [1] FOCS exploits the magneto-optic effect (Faraday effect). [2] The FOCS can measure uni- or bi-directional DC currents up to 600 kA, with an accuracy within ±0.1% of the measured value.

5. Pulse Electronics' New Sidewinder AC Current Sensor Has a ...

   www.aol.com/2012/11/06/pulse-electronics-new...

   Pulse Electronics' New Sidewinder AC Current Sensor Has a Dynamic Range of 0.10-1000+ Amps For highly accurate power measurement in smart meters, industrial motor controls, and power line ...

6. Magnetometer - Wikipedia

   en.wikipedia.org/wiki/Magnetometer

   A fluxgate magnetometer consists of a small magnetically susceptible core wrapped by two coils of wire. An alternating electric current is passed through one coil, driving the core through an alternating cycle of magnetic saturation; i.e., magnetised, unmagnetised, inversely magnetised, unmagnetised, magnetised, and so forth. This constantly ...

7. Ammeter - Wikipedia

   en.wikipedia.org/wiki/Ammeter

   In AC circuits, a current transformer can be used to convert the large current in the main circuit into a smaller current more suited to a meter. Some designs of transformer are able to directly convert the magnetic field around a conductor into a small AC current, typically either 1 A or 5 A at full rated current, that can be easily read by a ...