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单词 hysteresis loop
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hysteresis loop
hysteresis loop n. a graph showing how the value of some property of a system exhibiting hysteresis varies as the factor causing it is varied from one value to another and back again.A hysteresis loop consists of a closed loop in which two points are connected by two branches: one corresponding to progression from one point to the other, and the other the reverse. In the case of physical systems, the area enclosed by the loop represents the energy lost by the system in passing from one point to another and back again.
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the world > relative properties > number > graph or diagram > [noun] > graph > showing specific relationship
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the world > matter > physics > mechanics > force > [noun] > hysteresis > graph
hysteresis curve1890
hysteresis loop1892
the world > relative properties > number > geometry > shape or figure > [noun] > two-dimensional > closed curve
oval1570
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1892 Proc. Royal Soc. 51 458 If the curve is a simple hysteresis loop such as may be obtained in slowly-performed cyclic magnetisation, on the assumption that I = I0 sin x, one of my students, Mr. Fowler, has found A in terms of sin (x+e1), sin (2x+e2), &c., a rather complicated expression which I need not give.
1946 Rubber in Engin. (H.M.S.O.) iv. 69 The stress–strain curve for rubber on retraction does not follow the same course as during extension, but forms a hysteresis loop.
2002 Nature 28 Nov. 374/2 As well as the saturation point (maximum magnetization), the hysteresis loop is characterized by the ‘coercivity’ of the material, which is the reverse-field strength needed to reduce the flux density to zero.
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