Secondary for linear drive motor comprising sheet of highly permeable magnetic material having synchronized motor teeth, encoder teeth, and commutation tracks integrally formed therein

A secondary for a motor comprising:

• a sheet of magnetic permeable material, the sheet having a width and a length, and a first surface and an opposite second surface with a thickness extending therebetween, the sheet having a plurality of slots in the first and second surfaces and at least partially extending through the sheet thickness parallel to the width of the sheet and spaced along a length of the sheet, the slots defining a plurality of teeth in the sheet between the slots and enabling the sheet to be conformable to a mounting surface to which the sheet is mounted when forming the secondary of the motor, the plurality of teeth having a motor pitch, the first surface having a first set of pockets formed adjacent the plurality of slots, the first set of pockets extending parallel to the width and being spaced along the length of the sheet, the first set of pockets being adapted to be read by an encoder for the motor, the first set of pockets having an encoder pitch, the motor pitch being an integer multiple of the encoder pitch, the first surface having a second set of pockets formed adjacent the first set of pockets, the second set of pockets extending parallel to the width and being spaced along the length of the sheet, the second set of pockets being adapted to be read by a sensor of the motor operatively connected to a control of the motor controlling commutation of the motor.