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  • Limited-Angle Torque Motors
    for heat-seeking sensors, and power other systems that rotate through small angles. The rotor in a limited-angle torquer carries field magnets, and the stator supports armature windings (similar to the construction of conventional brushless motors). LATs, however, are wound single phase, unlike conventional
  • Neo magnets boost fuel economy
    A disassembled ECF motor has four new injection-molded Neo arcs installed (arrows), and the armature winding removed in preparation for rewinding. Permanent-magnet performance is measured by a demagnetization characteristic. The standard ceramic ferrite magnet has the lowest magnetic properties
  • How to speed up dc motor selection
    increases the winding resistance. Similarly, decreasing winding resistance with a large diameter conductor lowers the torque constant because the armature slot accommodates fewer turns. The relationship between torque constant and armature resistance is a function of the root of the resistance. Choosing
  • Linear AC Motors
    and a flat metallic or conductive plate-type armature (secondary). Cutting and unrolling the stator leads to many other possible linear motor configurations. For example, a tubular motor can be conceptually made from the SLIM by rerolling it in the direction of motion. The pole pattern is produced
  • Brushless dc Motors in Medical Applications
    of design, though, BLDC and brushed-dc motors are almost direct opposites. The windings of a brushed-dc motor wind around the motor's rotating shaft or armature, whereas the windings of a BLDC motor are affixed to the motor housing. Likewise, the magnets of a brushed-dc motor attach to the motor housing
  • Thin is In
    advantage to not having wire windings; consistency. Every motor is built with the same automated and repeatable process control. The stator and armature conductors are formed as a freestanding thin shell, which lowers heat generation and aids in heat dissipation. Air moving over both the inside
  • Coreless DC Motors
    in conventional motors is caused primarily by the release of stored energy in the armature inductance upon commutation. Excessive arcing produces electrical noise and reduces the life of brushes. Coreless motors are classified by rotor shapes as cylindrical or disc. Cylindrical rotors are further divided

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