Arrangement for sending/receiving sound waves propagating in water has transformers whose second winding voltages cancel in send mode; third winding of second transformer is shorted in receive mode

摘要

The arrangement has an electroacoustic transducer and an electrical switch for imposing an electrical transmission signal on the transducer and receiving an electrical reception signal from it. The switch has first and second transformers. The transformer second winding voltages cancel in send mode and the third winding of the second transformer is short circuited in receive mode. The arrangement has an electroacoustic transducer (10) and an electrical switch (11) for imposing an electrical transmission signal on the transducer and receiving an electrical reception signal from it. The switch has a first transformer (14) with first and second coils for transmission and reception and a third connected to the transducer and a second transformer (15) with first and second windings in series with those of the first transformer and a third connected to a short circuiting arrangement. The transformer second winding voltages cancel in send mode and the third winding of the second transformer is short circuited in receive mode.