Electricity and magnetism for advanced students (1920)
Starling, Sydney George, 1873- · London Longmans, Green · leaf 55
e small weight w, and the torsion in the fibres, theapparatus may be compensated for temperature change. The Kelvin Compass.—Several improvements in the old form ofships compass were introduced by Lord Kelvin ; the old ones beinggenerally too large, and slow in movement. The Kelvin pattern is… … Fig. 36. In the middle is the system of magnets (six or eight) slung on toradial threads, giving a system of high magnetic moment and verysmall weight. Any oscillations in the magnet are therefore of smallamplitude and are damped out much more rapidly than with the olderand heavier magnets of…
Electricity · Magnetism
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