We have blasted out Venturi tubes.
"Dead World" by Jack Douglas
The Kern burner, for example, employs the principle of the Venturi tube.
"Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 4" by Various
Therefore, when measuring the output of an orifice plate meter, a venturi meter, or pitot tube, square root extraction is necessary to linearize the output for use in the control system.