Drake's Electrical Dictionary

Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: D. C.?An abbreviation for direct current. D. P. Switch.?An abbreviation for double pole switch. Damped Galvanometer.?A galvanometer the needle or coil of which comes to repose almost immediately when moved. Damped Vibrations.?Vibrations occurring under conditions which enable the swinging or oscillating...
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Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: D. C.?An abbreviation for direct current. D. P. Switch.?An abbreviation for double pole switch. Damped Galvanometer.?A galvanometer the needle or coil of which comes to repose almost immediately when moved. Damped Vibrations.?Vibrations occurring under conditions which enable the swinging or oscillating motion to immediately assume repose instead of continuing the to and fro movement when the force which causes the vibration is removed. Vibrations of successively decreasing amplitude. Damper.?A metallic cylinder disposed in such manner as to nearly or entirely encompass the iron core of an induction coil for the purpose of effecting a variation in the intensity of currents produced in the secondary. A dash-pot furnished to obviate the too sudden movements of a lever or other member of a moving contrivance. Damping.?The stopping of sudden oscillations without waiting their cessation after reiterated to and fro movements. The neutralization of the motive energy in a periodically moving body by the application of impeding forces. Damping Magnet.?Any magnet serving to check the motions of a moving object or magnet. Dash-Pot.?A cylinder partly filled with fluid having a loosely fitting piston to ease the blow of any falling weight. A contrivance to obviate too sudden motion in the movable members of an apparatus. Day Load.?A load carried on a machine or at a central station during the day time. Dead-Beat.?Damped heavily. That motion of a galvanometer needle which describes excited movement from point to point and returns quickly to repose. Aperiodic. Dead-Beat Galvanometer. ? A galvanometer whose needle does not reiterate its to and fro oscillatory motion, but instead, comes quickly to repose. Dead Ground or Grounding.?A grounding that will secure...