Abstract: A linear motor which includes a bobbin with an interior lengthwise axial opening with a permanent magnet assembly within the opening and electricity carrying coils wound on an exterior of the bobbin which creates a force when electricity runs through the wound coils as a result of interaction between the magnetic field created by the magnet assembly, and the current passing through the coil wires, that enables the magnet assembly to move in an axial direction within the bobbin. The bobbin includes an encoder within an interior wall and an encoder scale strip affixed to the magnet assembly so that the encoder can detect the position of the magnet assembly.

Abstract: A linear motor includes an assembly of two magnets separated by a non-magnetic spacer wherein the assembly is coaxially affixed inside of a housing, which results in an air gap therebetween. The magnets are positioned to have a same direction of magnetization. A first embodiment of the motor includes a coil carrier having a single electrical coil of two sections wound in the same direction and positioned into the corresponding two winding areas of the carrier. The coil carrier is movably positioned into the air gap and further to surround the assembly, thereby moving along an axial direction of the motor. A second embodiment includes two coils that wound in a same direction with the respective separated wires and positioned into the respective two winding areas of the coil carrier.

Abstract: A linear motor includes an assembly of three magnets in series coaxially affixed inside of a housing, which results in an air gap therebetween, wherein the assembly includes a middle magnet whose direction of magnetization is opposite to that of the rest of the magnets. A first embodiment of the motor includes a coil carrier having a single electrical coil of two sections wound in the same direction and positioned into the corresponding two winding areas. The carrier is movably positioned into the air gap and further surrounds the assembly, thereby moving along an axial direction of the motor. A second embodiment includes two coils that are wound in a same direction with the respective separated wires and positioned into the respective two winding areas of the coil carrier.

Abstract: A linear motor includes an assembly of two or more sets of magnets and pole pieces wherein the assembly is coaxially affixed inside of a housing, which results in an air gap therebetween. The magnets are positioned so that each magnet has opposite directions of magnetization relative to its adjacent magnet. The embodiment of the motor includes a coil carrier having a single electrical coil of two or more sections with each section wound in the opposite direction to the adjacent section and positioned into the corresponding winding areas of the carrier. The coil carrier is movably positioned into the air gap and further to surround the assembly, thereby moving along an axial direction of the motor when electricity is applied to the coil.