hysteresis
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See also: hystérésis
English
Etymology
Coined by Sir James Alfred Ewing from Ancient Greek ὑστέρησις (hustérēsis, “shortcoming”), from ὑστερέω (husteréō, “I am late, fall short”), from ὕστερος (hústeros, “later”). [1]
Noun
hysteresis (countable and uncountable, plural hystereses)
- A property of a system such that an output value is not a strict function of the corresponding input, but also incorporates some lag, delay, or history dependence, and in particular when the response for a decrease in the input variable is different from the response for an increase. For example, a thermostat with a nominal setpoint of 75° might switch the controlled heat source on when the temperature drops below 74°, and off when it rises above 76°.
- Magnetic friction in dynamos, by which every reversal of magnetism in the iron causes dissipation of energy.
Derived terms
Derived terms
Translations
a property of a system
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References
- ^ What's Hysteresis, from James P. Sethna at Cornell University.