There are two major sources for transformer noise:
1. By far, the major cause of transformer noise is Magnetostriction.
Magnetostriction is the random movement of individual sheets within the stacked core. The individual sheets expand and contract, at different rates, as the core is magnetized. These extensions and contractions will occur twice during each complete cycle of the alternating current flowing through the coil.
Crosslink was very pleased to have our friends from The University of Toronto Blue Sky Solar racing team visit with us on May 22, 2015. They provided us with a first-hand look at the B-7 Blue Sky Solar Racing car, which finished 8th out of 24 in the Challenger Class of the World Solar Challenge!
Coefficient of Thermal Expansion (CTE) is a measure of the expansion or contraction of a material as a result of changes in temperature. Most frequently it is provided as linear CTE but some times given as volumetric CTE.
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