g
Measuring Total Pressure
inclined manometer
g DF
K”—
stream. This probe senses total
Therefore, static pressure can be read directly, while velocity pressure is derived by subtracting the static pressure from the total pressure.
An alternate method would be to attach the open end of this manometer to the duct system, using it to measure static pressure. With one end measuring total pressure and the other end measuring static pressure, the difference read on the manometer scale would be equal to the velocity pressure.
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