torsiometer [医] 眼旋计
Torsion meter \Torsion meter\ (Mech.)
An instrument for determining the torque on a shaft, and
hence the horse power of an engine, esp. of a marine engine
of high power, by measuring the amount of twist of a given
length of the shaft. Called also {torsimeter}, {torsiometer},
{torsometer}.
[Webster 1913 Suppl.]