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2. 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

3. Test probe - Wikipedia

   en.wikipedia.org/wiki/Test_probe

   It is a magnetically balanced coil that measures current by electronically evaluating the line integral around a current. High-frequency, small-signal, passive current probes typically have a frequency range of several kilohertz to over 100 MHz. The Tektronix P6022 has a range from 935 Hz to 200 MHz. (Tektronix 1983, p. 435)

4. Eddy-current sensor - Wikipedia

   en.wikipedia.org/wiki/Eddy-current_sensor

   Eddy current sensors are displacement sensors that use the principle of eddy current formation to sense displacement. These sensors measure shaft displacement in rotating machinery and have been around for many years as they offer manufacturers high-linearity, high-speed measurements, and high resolution. [ 1 ]

5. Eddy current - Wikipedia

   en.wikipedia.org/wiki/Eddy_current

   Conductivity meters for non-magnetic metals [15] [16] Eddy current adjustable-speed drives; Eddy-current testing; Eddy current brake; Electricity meters (electromechanical induction meters) Induction heating; Cooking (induction cooking) Proximity sensor (displacement sensors) Vending machines (detection of coins) Coating thickness measurements [17]

6. Eddy-current testing - Wikipedia

   en.wikipedia.org/wiki/Eddy-current_testing

   Frost & Sullivan analysis in the global NDT equipment market in 2012 estimated the magnetic and electromagnetic NDT equipment market at $220 million, which includes conventional eddy current, magnetic particle inspection, eddy current array, and remote-field testing. This market is projected to grow at 7.5% compounded annual growth rate to ...

7. Current sensing - Wikipedia

   en.wikipedia.org/wiki/Current_sensing

   Current transformers used as part of metering equipment for three-phase 400A electricity supply. The CT is based on the principle of a transformer and converts a high primary current into a smaller secondary current and is common among high AC current measurement system.