1. FLOW MEASUREMENT TECHNIQUES
Rate meters ( inferential)
Constant area-variable head meter: venturi, flow nozzle,orifice plate and pitot tube
Constant head- variable area meters: rotameter, cylinder and piston arrangement
Variable head and variable area meters : Weirs and flumes
Variable velocity meters : current meters and anemometers
Variable force meter : Vane
Turbine meter – velocity of flow is proportional to rotor speed
Quantity meters ( positive)
Weight meter : weighers and traps
Volumetric meters: tank, rotating impellers

2. ANEMOMETER

3. HOT WIRE ANEMOMETER PROB (Flow - fluctuating and unsteady) 5 micron diameter wire of platinum tungsten-W bridge

4. HOT WIRE BRIDGE CIRCUITS

5. CURRENT METER

6. TURBINE METER

7. ELECTROMAGNETIC FLOW METER (Induced voltage E= CBLV) c-dim const,B-magnetic field,L-length of conductor- dia of pipe,V- velocity of conductor i.e. fluid