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:
“My dear, it was a moment
to clutch at for a moment
so that you may believe in it
and believing is the act of love, I think,
even in the telling, wherever it went.”
—Anne Sexton (1928–1974)