I have the challenge of characterizing the output flow from an intake and duct system across electrical boards. There is only about a half inch of room to measure the flow on the end of the boards, and i have been trying to use a hot wire anemometer. The values fluctuate irradictly due to the turbulant nature of the flow. Does anyone know if channeling the air through something to then take a measurement would then give me a false value from the averege value.?????