By Cyrille Lothaire. Car Wiring. Publised at Saturday, July 08th 2017, 12:19:44 PM. Wires are usually connected to components by plastic-covered terminals which push on to a blade on the unit called a spade terminal. Nearly all types of terminals should be fitted to the wire with crimping pliers. There are a few types such as the "Scotchlok" which are secured by clips. For additional security, you can add solder to the wire.
By Adrienne Emmanuel. Motor Wiring. Published at Tuesday, February 13th 2018, 18:31:54 PM. This means that when the next electromagnet is turned on and the first is turned off, the gear rotates slightly to align with the next one. From there the process is repeated. Each of those rotations is called a "step", with an integer number of steps making a full rotation. In that way, the motor can be turned by a precise angle.
By Olivier Constance. Motor Wiring. Published at Tuesday, February 13th 2018, 11:01:01 AM. Positioning servomechanisms were first used in military fire-control and marine navigation equipment. Today servomechanisms are used in automatic machine tools, satellite-tracking antennas, remote control airplanes, automatic navigation systems on boats and planes, and antiaircraft-gun control systems. Other examples are fly-by-wire systems in aircraft which use servos to actuate the aircraft control surfaces, and radio-controlled models which use RC servos for the same purpose. Many autofocus cameras also use a servomechanism to accurately move the lens. A hard disk drive has a magnetic servo system with sub-micrometre positioning accuracy. In industrial machines, servos are used to perform complex motion, in many applications.
By Adrienne Emmanuel. Motor Wiring. Published at Tuesday, February 13th 2018, 05:18:15 AM. A micro controller or stepper motor controller can be used to activate the drive transistors in the right order, and this ease of operation makes unipolar motors popular with hobbyists; they are probably the cheapest way to get precise angular movements. For the experimenter, the windings can be identified by touching the terminal wires together in PM motors. If the terminals of a coil are connected, the shaft becomes harder to turn.
By Cyrille Lothaire. Motor Wiring. Published at Monday, February 12th 2018, 14:40:21 PM. A stepper motor is a polyphase AC synchronous motor (see Theory below), and it is ideally driven by sinusoidal current. A full-step waveform is a gross approximation of a sinusoid, and is the reason why the motor exhibits so much vibration. Various drive techniques have been developed to better approximate a sinusoidal drive waveform: these are half stepping and microstepping.
By Fleurette Nina. Car Wiring. Published at Monday, February 12th 2018, 08:13:35 AM. Both coils draw the plunger inward, causing it to pull the shift lever and engage the pinion gear. When the plunger is pulled into the coil all the way, the pinion fully engages the ring gear. When the ring gear is fully engaged, engine cranking begins. When the engine starts the hold-in coil will cut out and the plunger will move out, retracting the pinion and opening the starter switch.
By Dorian Yannic. Car Wiring. Published at Monday, February 12th 2018, 06:52:50 AM. Rubber grommets are used where wirespass through holes drilled in the bodywork,to prevent sharp edges cutting theinsulation. Cable clips The loom and individual cables areheld to the bodywork by various types of clips.
By Olivier Constance. Car Wiring. Published at Sunday, February 11th 2018, 06:22:14 AM. Brushes are used to create electrical contact to the commutator segments and when current is fed into two of the four brushes, it flows through all the loops of the armature and shoe windings and out the other two brushes. This creates a magnetic field around each loop. As the armature turns, the loop will move to a position where the current flow reverses. This constant reversal of current flow allows the armature and field coils to repel each other and spin the motor. The greater the current flowing in the coils, the greater the magnetic forces, and the greater the power of the motor.
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