Pulse-based counting in flow meters
The pulse counting method for flow measurement involves converting the kinetic energy from the flowing fluid into rotation, detecting this rotation and converting it into electrical energy in the form of digital pulses comprising '0's and '1's of varying periods in accordance with the flow being measured. The periods of '0' and '1' can then be measured to determine the speed and direction of rotation; hence determining the rate of flow and amount of fluid flown over a period of time.
Low water pressure? No problem!
By design, solenoid valves have a small orifice for the fluid to go through. This causes high pressure drops, limiting severely the amount of fluid at a given pressure.
