SOUND TRANSDUCER FOR SENDING AND/OR RECEIVING UNDERWATER SOUND SIGNALS, UNDERWATER ANTENNA, TRAILING ANTENNA, SONAR, AND WATERCRAFT

• Main Authors: MINSCHKE, Mike, MATISSEK, Gregor, VOIGT, Reimar, JUNGE, Wilfried
• Format: Patent
• Language: English; French; German
• Published: 17.02.2021
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; FOR PERFORMING MECHANICAL WORK IN GENERAL; GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY; PERFORMING OPERATIONS; PUBLIC ADDRESS SYSTEMS; TRANSPORTING

The invention relates to a sound transducer for sending and/or receiving underwater sound signals, wherein the sound transducer comprises at least two sound transducer shells, each comprising a piezoceramic material and each being electrically conductive on an outer surface and an inner surface, the sound transducer shells forming a toroidal shape so that an underwater sound signal can be sent and/or can be received rotationally symmetrically. The invention also relates to an underwater antenna, a trailing antenna, a sonar for sending and/or receiving underwater sound signals, and a watercraft.