| galvanometer | <physics> An instrument or apparatus for measuring the intensity of an electric current, usually by the deflection of a magnetic needle. Differential galvanometer. <physics> See Differental, Sine galvanometer, Cosine galvanometer, Tangent galvanometer, a galvanometer in which the sine, cosine, or tangent respectively, of the angle through which the needle is deflected, is proportional to the strength of the current passed through the instrument. Origin: Galvanic: cf. F. Galvanometre. Source: Websters Dictionary (01 Mar 1998) |
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| oscillation | 1. The act of oscillating; a swinging or moving backward and forward, like a pendulum; vibration. 2. Fluctuation; variation; change back and forth. "His mind oscillated, undoubtedly; but the extreme points of the oscillation were not very remote." (Macaulay) Axis of oscillation, Center of oscillation. See Axis, and Center. Origin: L. Oscillatio a swinging. Source: Websters Dictionary (01 Mar 1998) |