An electrorheological clutch (ER clutch) comprises drive and driven members, generally parallel to each other, that can be selectively engaged by the application of a voltage to an electrorheological (ER) fluid. The ER fluid is used as the coupling between the input and the output (drive and driven members). The clutch acts as a power amplifier and the effect is fast (of the order of milliseconds) and reversible.
Famous quotes containing the word clutch:
““you were with me all day; stood with me, sat with me, talked with me, looked at me, ate with me, drank with me; and yet, your last act was to clutch for a monster, not only an innocent man, but the most pitiable of all men. So far may even the best man err, in judging the conduct of one with the recesses of whose condition he is not acquainted.””
—Herman Melville (1819–1891)