Experimental engineering and manual for testing (1903)
Carpenter, Rolla C. (Rolla Clinton), 1852-1919 · New York, J. Wiley & sons; [etc., etc.] · leaf 310
ure. This correction is calculatedas follows: Let A equal the area of sur-face of the liquid in the cistern, a thearea of the manometer-tube, H the fallof liquid in the cistern, h the correspond-ing rise of liquid in the tube, b the heightrequired for one pound of pressure (seeArticle 260, page… … ii h=. A+a Ab A-\-a %■272^ MEASUREMENT OF PRESSURE. 321 which is the length the graduation shouldbfe made to allow for fall of mercury in thecistern and give a value equal to one poundof pressure. To make this correction uniformly ap-plicable the area of cross-section of bothtube and cistern should…
Building materials · Machinery
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