Linear Voice Coil Motor Introduction
Linear Voice Coil Motor, also known as a non-commutated DC linear actuator, is a type of direct drive linear motor. The name “voice coil” comes from one of its historically first applications: vibrating the paper cone of a loudspeaker. They are currently used for a wide range of applications, including moving much larger masses.
It consists of a permanent magnetic field assembly (permanent magnets and ferrous steel) and a coil assembly. The current flowing through the coil assembly interacts with the permanent magnetic field and generates a force vector perpendicular to the direction of the current. The force vector can be reversed by changing the polarity of current flowing through the coil.
Linear Voice Coil Motor Specification
|Continuous Force (N)
@ 10% Duty Cycle (N)
|Housing Length (inch)
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Linear Voice Coil Motor Applications
Linear Voice Coil Motor may be used in conjunction with a position sensor and a motion controller for accurate positioning. The other applications of the voice coil motors are force and pressure control.