Wright respirometer

Wright res·pi·rom·e·ter

(rīt), an inferential meter that measures tidal and minute volume from the number of revolutions of a vane rotated by the gas stream as the latter passes through ten tangential slots in a cylindric stator ring to turn a flat two-bladed rotor; also called a Wright spirometer.

Wright,

Basil Martin, 20th century English physician. Wright peak flow meterWright respirometer - an inferential meter used to measure tidal and minute volume.