![]() Several Pi ( and other) projects have indeed scanned horizontally with range-meters and drawn a 'map', but this is not an image in the sense I believe the OP intended. May seem dark ages to you, but easily available now and for decades. I'm talking about raw sensors, not ultrasound range-meters. There was a published article in Physics Education ( long out of print)Īgain no. I remember doing this with two stepper motors years ago on a BBC B computer. (Another is to create a tighter ultrasound detector beam with a small parabolilc reflector and point it appropriately.) The 'image' will be a diffration pattern and can be transformed into what we normally think of as an image. ![]() One way is to move the detector in a raster pattern behind a suitable aperture in a board with a hole in it. You will have to scan in x and y directions, and use an analogue amplified ultrasound detector and a fixed ultrasound 'illuminator'. ![]() This means anything you do will require you to understand diffraction. This means wavelength in air is 340/40000 which is 8.5mm. Sairo- don't read on if your programming and physics is not yet moderately advanced! Mikronaut has given a link to an example of ultrasound detection as such. ( sorry, mikronauts! Couldn't resist the lure of your terse reply!)īut only slowly.
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