Linear DC
Motors, Voice Coil Motors (VCM) or Voice Coil Actuators (VCA) are the
simplest type of electric motors. These motors consist of two separate
parts; the magnetic housing and the coil.
Applying
a voltage across the terminals of the motor causes the motor to move to
one direction. Reversing the polarity of the applied voltage will move
the motor to the opposite direction. The
generated
force is proportional to the
current that flows through the motor coil. This force is almost constant
in the specified stroke range of the motor.
The
non-commutated motor construction increases reliability. The direct
coupling of the motor to the load allows for fast acceleration /
deceleration and high speed operation.
Very high
speeds and accelerations can be easily achieved.
The moving part is supported by a built-in linear bearing.
This type of motor may be used in conjunction with a
position sensor and a motion controller for accurate positioning.
Mounting hardware in various lengths and styles is available and may be obtained at
