In the transducer, the time that takes a torsion pulse to traverse a sonic waveguide from a movable permanent magnet to a pulse responsive element is determined and proportional to the distance from the magnet to the pulse responsive element. 它能够确定一个扭转脉冲从可动磁铁沿波导管传递到声脉冲响应装置的时间,而该时间和可动磁铁到脉冲响应装置间的距离成正比。