This objective of this paper is to provide the field engineer with single, concise source of information on flow measurement using a Pitot tube. Solved problems in fluid flow measurements Ex.1 A pitot static tube is used to measure the velocity of air flowing. Calibrating the measurement system in a wind tunnel can further increase the accuracy of the velocity and the flow measurements. Also, the placement of the pitot tube in the passage will influence how accurately the measured flow tracks the actual flow through the passage. It is widely used to determine the airspeed of an aircraft, water speed of a boat, and to measure liquid, air. When measuring volumetric flow, the ‘passage of a known diameter’ must be designed to reduce air turbulence as the air mass flows over the Pitot tube. A pitot tube is a pressure measurement instrument used to measure fluid flow velocity. One of the instruments he used was his own inventiona strange-looking tube bent into an. The volumetric flow is then calculated by measuring the average velocity of an air stream passing through a passage of a known diameter. In 1732, the Frenchman Henri Pitot was busy trying to measure the flow velocity of the Seine River in Paris. The Pitot tube measures air velocity directly by means of a pressure transducer which generates an electrical signal which is proportional to the difference between the pressure generated by the total pressure and the still air (static pressure). The incorporation of sensors to measure the air temperature, barometric pressure, and relative humidity can further increase the accuracy of the velocity and flow measurements. The side hole measures the static pressure. It’s a slender tube that has two holes on it.
#Using a pitot tube to measure air velocity software#
The accurate measurement of both air velocity and volumetric airflow can be accomplished using a Pitot tube, a differential pressure transducer, and a computer system which includes the necessary hardware and software to convert the raw transducer signals into the proper engineering units. How do you measure air velocity with a Pitot tube How does the pitot tube help in measuring the air speed Basically, a pitot tube is used in wind tunnel experiments and on airplanes to measure flow speed.
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