Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 831
pro-jecting from the magnetometer, behind the apex of the quad-rant. The magnet stands over the needle, as shown in the figure,and its field is brought into parallelism with that of the earth,by turning the screw at the point of the magnet until the indexpoints to zero. To avoid accidental… … Mg. 513. into the tops of the platform, and this allows the magnetometerto be moved nearer to or further from the coil, but prevents itbeing so turned round as to change the zero reading of the in-strument. The sensibility of the instrument is changed by vary-ing the position of the magnetometer on…
Electrical engineering
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