Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 83
Fig. 1.—De LavalDiverging 14ozzle … Fig. 2.—Heros Steara-Englne Engineering by the kind permission of thepublishers.Null Method of Measurement.—This term is applied to those methods in whichthe effect to be measured is balanced againstsome known value, with the result that the Oblique Loop — Ohmmeter 375 balancing instrument…
Electrical engineering
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