meter wheel

meter wheel

[′mēd·ər ‚wēl]
(engineering)
A special block used to support the oceanographic wire paid out over the side of a ship; attached directly or connected by means of a speedometer cable to a gearbox which measures the length of wire.
References in periodicals archive ?
He goes on to say that 'no matter what insulation we have the meter wheel keeps spinning round.
With a quick change of the meter wheel, a producer can plant a variety of seeds at an accurate rate.
But we know that no matter what insulation we have, the meter wheel keeps spinning round.