ELECTROMAGNETIC TRANSDUCER

摘要

An improved electromagnetic actuator (10) includes a first assembly (12), a second assembly (14) disposed for relative movement with respect to the first assembly (12) and at least a first flexure (16) interconnecting the first assembly (12) and the second assembly (14). The first assembly (12) includes a core (20) having a first magnetic pole (26) of a first polarity and a second magnetic pole (30) of a second polarity. The second assembly (14) includes an electrical current conductive coil (38) having a first coil portion (40) and a second coil portion (42). The first magnetic pole (26) is in a facing relationship to the first coil portion (40) and the second magnetic pole (30) is in a facing relationship to the second coil portion (42). The first coil portion (40) and the second coil portion (42) are arranged so that an electrical current in the coil develops added a flux current cross products at each of the first coil portion and the second coil portion (42). One of the first assembly (12) and the second assembly (14) includes a magnetic flux return path (44) between the first coil portion (40) and the second coil portion (42).