Question

State the merits of eddy currents?​

Answer 1

hiii mate

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(i) These are used to stop the train by applying electric breaks.

(ii) These are used in induction motor.

(iii) These are used in induction furnace.

(iv) The working of speedometer is based on these currents.

(v) In hospitals, these currents are used for diathermy.

(vi) The working of energy is based these currents.

Hope it helps ☺️

Answer 2

1, When test, the coil does not require contact with the workpiece, but also without the coupling medium, so the detection speed.

2, The workpiece surface or near surface defects, high detection sensitivity, and in a certain range with good linearity indication, can be used for quality management and control.

3, At high temperature, the workpiece narrow area, deep-hole wall (including the wall) for testing.

4, Measure the thickness of the metal coating or non-metallic coating.

5, Detect eddy currents can cause non-metallic materials, such as graphite.

6, The test signal is electrical signal, can be digitized, easy to store, reproduce and data comparison and processing