I know, there are medical scanners which can do that with ultrasound, but this equipment if awfully expensive. Iām looking for something much cheaper, say, under $500 and it does not have to be off-the-shelve. I'm equally interested in components which can be used to build it.
Let's consider a specific example. I have an empty plastic bottle with a pump (e.g. for liquid soap). I would like to scan it with a step of 1/8'' and get an image of a bottle reveling the internal structure of the bottle at each step. At the first step I will see only the outline of the bottle walls, but as I progress deeper I should be able to see the pump and the straw inside. Something like XRay for plastic with configurable depth of readings.