Which transducer is arranged in the shape of a clover leaf so that it provides a large area of illumination?

Which transducer is arranged in the shape of a clover leaf so that it provides a large area of illumination? Correct Answer ultrasonic

The ultrasonic transducer is arranged in the shape of a clover-leaf so that it provides a large area of ultrasonic illumination which allows the monitoring considerable lateral and descending foetal motion before requiring repositioning. The transducer housing is flexible to permit it to follow the contour of the abdomen regardless of shape changes with contractions.
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