Nivåställ (Differential Pressure Flow Sensors)
DIFFERENTIAL PRESSURE FLOW SENSORS – Once an object is brought into a laminar flowing fluid inside a pipe, the fluid will dam up in front of the object, which generates a raise of pressure. Passing the object the fluid gets accelerated due to the smaller pipe cross section. This acceleration generates a pressure drop on the backside of the object. As all operational conditions at the place of measurement are known, the volume of flow can be calculated by using the difference of the two pressures. D.P. flow elements are Itamar-Flow-Sensors.