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Base Station - A base station is a device used to centralize and process communication signals and information between crew members. . Used . . Used . ...

Stepper Motor - A stepper motor is a type of electric motor that is used when something has to be positioned very precisely or rotated by an exact angle.

In a stepper motor, an internal rotor containing. Used . permanent magnets is controlled by a set of stationary electromagnets that are switched electronically. Hence, it is a cross between a DC electric motor and a solenoid. Stepper motors do not. Used . use brushes and commutators.

Stepper motors have a fixed number of magnetic poles that determine the number of steps per revolution. Most common stepper motors have 200 full steps/revolution, mea

Dimmer - Dimmers are devices used to vary the voltage running to a light. By decreasing or increasing the voltage to the lamp it is possible to vary the intensity of the lamp. Changes in intensity are called “. Used . fades” and can be “fade ups” or “fade downs.” Although variable-voltage devices are used for various purposes, the term dimmer is generally associated with lighting control. Small dimmers are. Used . seen more and more in the home. These have traditionally been actuated by direct control. The advent of X-10 technology is making remote control of home dimmers possible. A digital signal is imposed on the ho...

Pattern - Pattern refers to the shape, quality and evenness of a lamp's output. The pattern of light an instrument makes is largely determined by three factors. The first are the specifics of the bulb, reflecto. Used . r and lens assembly. Different mounting positions for the bulb (axial, base up, base down), different sizes and shapes of reflector and the nature of the lens (or lenses) being used can all a. Used . ffect the pattern of light. Secondly, the specifics of how the lamp is focused affect its pattern. In Ellipsoidal Reflector Spotlights (ERS) and their derivatives (see below), there are two beams of light emit...

LED - An LED or light emitting diode is simply a tiny light bulb that fits into an electrical circuit. However, unlike ordinary bulbs, LEDs don't have a filament that will burn out and generate very little . Used . heat. They are illuminated by the movement of electrons in a semiconductor material and last as long as a standard transistor.. Used . ...