The present disclosure provides an ultrasonic transducer including a swivel member, a linking member and an array. The swivel member rotates upon receiving an actuating force and has a thrust mechanism. The linking member is connected to the swivel member to make a movement along a pendulum motion path upon receiving thrust generated by the thrust mechanism of the swivel member. The array is connected to the linking member to rotate a predetermined angle upon receiving thrust generated by the movement of the linking member. In some embodiments, the swivel member has an insertion pin coupled to the linking member including a guide groove for receiving the insertion pin, and the guide groove length is greater than the insertion pin diameter. The array includes a stop for restraining the linking member from moving side to side. The present disclosure also provides a method of operating the aforementioned ultrasonic transducer.
