Tuesday, 21 May 2024, 5:39 PM
Site: edulabs.org academy
Course: Activity Examples (Activity Examples)
Glossary: Electronics (Mike Jaroch)
S
SPHERICAL WAVEFRONTSWaves of energy that spread out in concentric circles [18]. |
SPIN VECTORIn a gyro, a vector representing the angular velocity of the gyro rotor. The spin vector lies along the spin axis of the rotor [15]. |
SPLATTERUnwanted sideband frequencies that are generated from overmodulation [12]. |
SPLICEA joint formed by the connecting of two or more conductors [4]. |
SPORADIC E LAYERIrregular, cloud-like patches of unusually high ionization. Often forms at heights near the normal E layer [10]. |
SPREADERInsulator used with transmission lines and antennas to keep the parallel wires separated [10]. |
SPROCKET TUNERA mechanical tuning device for magnetron tubes that changes the frequency of the cavities by changing the inductance. Also called a CROWN-OF-THORNS TUNER [11]. |
SQUARE MILThe area of a square, the sides of which are each equal to 1 mil. One square mil is equal to 1.2732 circular mils [4]. |
SQUELCHA circuit that cuts off the output of a receiver when there is no input [17]. |
SQUIRREL-CAGE WINDINGSA type of rotor winding in which heavy conductors are imbedded in the rotor body. The conductors are shorted together at the ends by continuous rings. It is widely applied in ac induction motors. Physically, it appears as a rotating squirrel-cage, thus the name [5]. |