Manometer for recording air speed

Wieselsberger, C
naca-tm-66
February 1922


If it is desired to record the pressure difference given a gauge, the manometer must answer the following conditions: 1) It must respond quickly so that all speed variations will be correctly recorded; 2) It must not be affected by rectilinear or curvelinear accelerations. Hence, movable parts must be counterbalanced. An instrument which met these criteria is discussed as well as details of construction.

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http://naca.central.cranfield.ac.uk/reports/1922/naca-tm-66.pdf