Definitions of galvanometer, volt- and ampere-meter.
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Definition of 'galvanometer, volt- and ampere-meter.'
The Standard Electrical Dictionary
1. galvanometer, volt- and ampere-meter. A galvanometer of Sir William Thomson's invention embodying the tangent principle, and having its sensibility adjustable by moving the magnetic needle horizontally along a scale (the "meter") towards or away from the coil. A curved magnet is used to adjust the control. The leads are twisted to prevent induction.
The instrument is made with a high resistance coil for voltage determinations, and with a low resistance coil for amperage determinations.
At one end of a long base board a vertical coil with its plane at right angles to the axis of the board is mounted. A scale (the "meter" of the name) runs down the centre of the board. A groove also runs down the centre. The magnetic needle is contained in a quadrant-shaped glass-covered box which slides up and down the groove. A number of short parallel needles mounted together, with an aluminum pointer are used.
'galvanometer, volt- and ampere-meter.' - Nearby Entries
Definitions of galvanometer, volt- and ampere-meter.
