FIELD: physics.
SUBSTANCE: electromagnetic-acoustic transducer has a magnetic system in form of a permanent magnet and two flat coils which are electrically insulated from each other and lie under the magnet, one below the other, where the permanent magnet is in form of a solid cylinder with diameter to height ratio equal to 1:2, and windings of one plat coil are directed at an angle of 90 degrees to windings of the other coil, and the diameter of the circle which describes windings of each coil is equal to the diameter of the permanent magnet.
EFFECT: possibility of exciting ultrasonic waves with different polarisations.
1 dwg
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