| 摘要 |
A transducer (1) with a transducer axis (2), with a membrane (3), with a magnet system (6) having an outer magnet system part (7) and an inner magnet system part (8), with a moving coil configuration (27) connected to the membrane (3) and having a coil carrier (28) and a moving coil (29) held by the coil carrier (28) in an air gap (14) between the two magnet system parts (7, 8), and with guide means (36) for a rectilinear guidance of the moving coil configuration (27) parallel to the transducer axis (2), wherein the moving coil configuration (27) has a cylindrical boundary surface (42) which together with a cylindrical boundary surface (15) of the outer magnet system part (7) delimits a cylindrical gap (43) which is acoustically impermeable above a lower limit frequency of at most 100 Hz. |
