Electronics (Mike Jaroch)
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REFRACTIONThe changing of direction of a wave as it leaves one medium and enters another medium of a different density [10] [18]. | ||
REFRACTIVE INDEXIn a wave-transmission medium, the ratio between the phase velocity in free space and in the medium [11] [18]. | ||
REGENERATIONSee FEEDBACK [18]. | ||
REGENERATIVE DETECTORA detector circuit that produces its own oscillations, heterodynes them with an incoming signal, and deflects them [12]. | ||
REGENERATIVE FEEDBACKThe process by which a portion of the output signal of an amplifying device is fed back in phase to reinforce the input. Also called POSITIVE FEEDBACK [8] [9]. | ||
REGULATORThe section in a basic power supply that maintains the output of the power supply at a constant level in spite of large changes in load current or input line voltage [6] [7]. | ||
RELATIVE BEARINGBearing of a target measured in a clockwise direction from "dead ahead" of a ship or plane [18]. | ||
RELAYAn electromagnetic device with one or more sets of contacts that change position by the magnetic attraction of a coil to an armature [3]. | ||
RELUCTANCEA measure of the opposition that a material offers to magnetic lines of force [1]. | ||