ELECTROACOUSTIC TRANSDUCER Russian patent published in 1994 - IPC

FIELD: electroacoustics. SUBSTANCE: electroacoustic transducer has a magnetic system and audio coil coupled with a membrane. The magnetic system is composed of coaxial pairs of permanent disk and ring magnets axially magnetized, magnetic disk and ring washers respectively interposed between them. Their other pole-piece are provided with disk and ring flanges, respectively. The like poles of disk and ring magnets face each other but opposite to one another. The magnetic washers are multilayer, the magnetic system being mounted on a non-magnetic base. EFFECT: enhanced accuracy and reliability. 1 dwg