down-the-hole flowmeter
1Orifice plate — Flat plate, sharp edge orifice ISO 5167 Orifice Plate An orifice plate is a device used for measuring the volumetric flow rate. It …
2Flow measurement — is the quantification of bulk fluid movement. Flow can be measured in a variety of ways. Positive displacement flow meters acumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow. Other flow… …
