【医】 正弦电流计

Galvanometer \Gal`va*nom"e*ter\, n. [Galvanic + -meter: cf. F.
galvanom[`e]tre.] (Elec.)
An instrument or apparatus for measuring the intensity of an
electric current, usually by the deflection of a magnetic
needle.

{Differential galvanometer}. See under {Differental}, a.

{Sine galvanometer}, {Cosine galvanometer}, {Tangent
galvanometer} (Elec.), 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.