plate is the flowmeter which has longest history and has largest consumptions.
The differential pressure flow meter with the throttling device as the
detecting component is one of the most widely used flow meters in the world. We
call it throttling differential pressure flow meter, and its range of
applications has been the top one in all flowmeters.
orifice plate is actually a single-hole measurement method for the balance flow
meter, and the balance is a porous orifice plate measurement method.
other differential pressure flow sensors, the orifice is based on the principle
of energy conversion in a sealed pipe: in the case of an ideal fluid, the flow
in the pipe is proportional to the square root of the differential pressure;
flow rate in the pipe can be calculated from the Bernoulli equation by
measuring the differential pressure value.
the volume flow and mass flow according to the Bernoulli equation:
Q = volume flow in the pipe
K = flow coefficient
C=flow constant (constant)
ΔP = differential pressure value
It can be seen that C is a constant. To
determine Q, K and ΔP must be determined firstly.