The following acquisition was done with an old mechanical ultrasound probe, along with the pulser module, the analog processing module. The acquisition was done with a beaglebone PRUDAQ at 10Msps. I'm not mentionning the power supply module.

You can download the raw data using this link.

The raw imageThe animated image

Comparing with the fantom

I guess the points we see are the points on the left hand of the fantom. The top of the fantom is not seen as the near field artifact is at goes till around 2cm (according to the probe specs).

As seen in the list of probes, the probe we've been using has the following characteristics:

• near field artifact till 2cm
• focal point at 7cm
• Lateral resolution of 4.2mm at 7cm depth
• Axial resolution of 1.3mm at focal depth

This matches with what we're seeing.

Setup: