hysteresis

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English[edit]

Etymology[edit]

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[edit]

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hysteresis (plural hystereses)

  1. 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°.

Derived terms[edit]

Translations[edit]

References[edit]

  1. ^ What's Hysteresis, from James P. Sethna at Cornell University.