 | Dionysius Lardner - 1853 - 476 páginas
...the disturbance of the air. Upon this glass cage, which is cylindrical, is a graduated circle d d', which measures the angle through which the needle...desired to indicate and measure by the apparatus. Fig. 495. ELECTROSCOPES. ally used as an indicator on the conductors of electrical machines consists... | |
 | Dionysius Lardner - 1853 - 484 páginas
...which measures the angle through which the needle is deflected. In the cover of the cage an Fig. 495. aperture o is made, through which may be introduced...Quadrant electrometer. — This instrument, which is generFig. 496. ally used as an indicator on the conductors of electrical machines consists of a pillar... | |
 | Dionysius Lardner - 1854 - 474 páginas
...the disturbance of the air. Upon this glass cage, which is cylindrical, is a graduated circle d d', which measures the angle through which the needle is deflected. In the cover of the cage an Fig. 495. aperture o is made, through which may be introduced the electrified body whose force it is... | |
 | Dionysius Lardner - 1856 - 458 páginas
...suspends it, the reaction of which measures the force which turns the needle. Upon the glass cage v v', which is cylindrical, is a graduated circle dd', which...is deflected. In the cover of the cage an aperture is made, through which may be introduced the electrified body whose force it is desired to indicate... | |
 | David Ames Wells - 1857 - 492 páginas
...which turns the needle. Within the glass vessel, which is cylindrical, a graduated circle is placed, which measures the angle through which the needle is deflected. In the cover of the vessel an aperture is made, through which the electrified body may be introduced, whose force it is... | |
 | Elias Loomis - 1858 - 374 páginas
...the force which turns the «o| needle. On a level with the needle is a graduated circle for measuring the angle through which the needle is deflected. In the cover of the vessel is an aperture through which may be introduced a ball, e, supported by a glass rod, by which... | |
 | David Ames Wells - 1858 - 466 páginas
...the cover of the vessel an aperture is made, through which the electrified body may be introduced, whose force it is desired to indicate and measure by the apparatus. Fig. 320 represents the construction and appearance of the torsion balance. What Important lair of... | |
 | John Charles Buckmaster - 1864 - 216 páginas
...which turns the needle. Within F1Q. 45. FIG. 44. the glass vessel a graduated circle, r, is placed, which measures the angle through which the needle is deflected. In the cover of the vessel, at d, an aperture is made through which the electrified body is introduced. The ball o is insulated... | |
 | Dionysius Lardner - 1868 - 476 páginas
...suspends it, the reaction of which measures the force which turns the needle. Upon the glass cage v v', which is cylindrical, is a graduated circle dd', which...is deflected. In the cover of the cage an aperture is made, through which may be introduced the electrified body whose force it is desired to indicate... | |
 | John Charles Buckmaster - 1871 - 224 páginas
...measures the force which turns the needle. Within the glass vessel a graduated circle, r, is placed, which measures the angle through which the needle is deflected. In the cover of the vessel, at d, an aperture is made through which the electrified body is introduced. The centre of the... | |
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The thread is fixed at the top to a small windlass t, by which the needle can be raised or lowered, and the whole is included in a glass cage, to preserve the apparatus from the disturbance of the air. Upon this glass cage, which is cylindrical, is a... 
