31. A similar effect is the proximity effect, which is caused by externally induced eddy currents . 32. Although the hysteresis loss is less than the eddy current loss, it is not negligible. 33. Magnets are already used in eddy current brakes on trains, roller coasters and power tools. 34. These core losses come from the change in the direction of the flux and eddy currents . 35. Tubing inspection is generally limited to non-ferromagnetic tubing and is known as conventional eddy current testing. 36. The two coils are wound in opposite directions to each other, cancelling out the eddy currents . 37. Eddy current losses are caused by currents induced in the iron due to the alternating flux.38. The braking system is a passive eddy current braking which is designed to have deceleration capabilities. 39. From this, it can be seen that the thinner the laminations, the lower the eddy current losses. 40. An eddy current brake was not fitted.
