magnetostriction transducer

magnetostriction transducer

[mag‚nēd·ō′strik·shən tranz′dü·sər]

(electromagnetism)

A transducer used with sonar equipment to change an alternating current to sound energy at the same frequency and to form the sound energy into a beam; its operation depends on the interaction between the magnetization and the deformation of a material having magnetostrictive properties.