Why are all the flow meters at the entrance and exit of the pool?
Flow measurement was first started by the Swiss. In 1738, the famous Swiss physicist Daniel Bernoulli measured the water flow by using differential pressure method based on the Bernoulli equation.
Flow meter is also divided into a differential pressure type flowmeter, rotor flowmeter, throttle flowmeter, slit flowmeter, volumetric flowmeter, electromagnetic flowmeter, ultrasonic flowmeter and weirs. By medium classification: liquid flowmeter and gas
