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Mechanical laboratory methods; the testing of instruments and machines in the mechanical engineering laboratory and in practice (1922)

Smallwood, Julian Chase · New York, D. Van Nostrand company · leaf 125

An illustration from Mechanical laboratory methods; the testing of instruments and machines in the mechanical engineering laboratory and in practice, 1922, leaf 125 — e the totalenergy, barring losses, remains constant. The drop in pressurebetween sections a and b thus becomes a measure of velocityand hence quantity. To deduce the equation for the Venturi meter it is onlynecessary to equate the expressions for energy at the two sec- 108 FLOW METERS 22 vr-D/ct. =… … <$-Pres$ure* H Pressure •h-~$

Mechanical engineering

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