Current sensing techniques | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-01-16

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Current_sensing


00:00:45 1 Requirements in current measurement
00:01:28 2 Current Sensing Techniques
00:01:56 3 Shunt resistors
00:04:24 3.1 Trace Resistance sensing
00:06:19 4 Current sensor based on Faraday's Law
00:07:09 4.1 Current transformer
00:08:08 4.2 Rogowski coil
00:10:00 5 Magnetic field sensors
00:10:10 5.1 Hall effect
00:12:13 5.2 Flux gate sensors
00:14:45 5.3 Magneto-resistive current sensor
00:16:25 6 See also



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SUMMARY
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In electrical engineering, current sensing is any one of several techniques used to measure electric current. The measurement of current ranges from picoamps to tens of thousands of amperes.  The selection of a current sensing method depends on requirements such as magnitude, accuracy, bandwidth, robustness, cost, isolation or size. The current value may be directly displayed by an instrument, or converted to digital form for use by a monitoring or control system.
Current sensing techniques include shunt resistor,  current transformers and Rogowski coils, magnetic-field based transducers and others.