METHOD AND APPARATUS FOR MEASURING FLUID CONSUMPTION

摘要

At first, a stop valve 66 is fully opened to measure a pressure value P1 on the downstream side of the stop valve 66 under this condition. Subsequently, a pressure value P2 on the downstream side of the stop valve 66 is measured when the flow velocity of compressed air flowing through the stop valve 66 is set to be the sound pressure while adjusting the opening degree of the stop valve 66. Further, a pressure value P2 on the downstream side of the stop valve 66 is measured when an ON/OFF valve 52 is turned ON to release the compressed air from a nozzle 54. The consumption amount Q of the compressed air flowing through a fluid-operated apparatus 72a, 72b is calculated by a calculating unit 48 on the basis of the pressure values P1, P2, P3 and an effective cross-sectional area Sn of the nozzle 54. <IMAGE>