The center frequency of the convex array is generally 3.5MHZ, and the depth of detection is relatively deep, so it is also called abdominal probe, which usually detects liver, kidney, and lower abdomen
The center frequency of the linear array is generally above 7MHZ, and the detection depth is shallow, so it is also called a superficial probe, mainly looking at the blood flow of the breast, arteries, and neck.
