A (water) current meter with a series of conical cups fastened to a flat framework through which a pin extends. Flowing water rotates the cups around the pin in a horizontal plane, and acoustical or electrical devices register the number of revolutions, from which the velocity of the water can be computed.
PRICE (OR PYGMY) CURRENT METER
Meaning of PRICE (OR PYGMY) CURRENT METER in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012