The principle of using the circular ring array dynamic segmented focusing method in mechanical sector-scan ultrasonic diagnostic equipment is the same as that of linear array dynamic focusing. Applying a proper delay to the electrical signal of each element can achieve focusing at any distance along the central axis, which is similar to the function of an acoustic lens, so it functions as an "electronic focusing lens".
Broadband multi-frequency probe technology
Dynamic frequency scanning, a broadband probe technology based on a certain frequency, can realize the simultaneous transmission of multi-frequency and receive high frequency at the near field and low frequency at the far field optionally , thereby to meet the different requirements of clinic. In this way, it can avoid the difficulty and limitation in using high frequency probe(which can lessen greatly in the body) independently in diagnosing the deep organs or foci .
