Other Interest > DIY - Side Scan Sonar and towfish
Dissecting the XM 9 20 MSI T - MEGA xducer ...
rnvinc:
Interesting stuff ...
Rickie
Rickard:
I agree, interesting! The images contain all data needed for calculating beam forms. :) This design looks much better than the older models. I dissected several of the old transducers and most of them were defective in some way. For example, all of the sidescan piezos were more or less displaced. This doesn't seem to be a risk with the new XM 9 20 MSI T Mega. I admire the screws... I have wondered how they managed to get 455, 800 and 1200 kHz from the same ducer. The solution is two parallell sidescan arrays, one for 455/800 kHz and a very thin one for 1200 kHz. The piezos are rather short, just 110 mm, but I think this is optimal for short distance scanning at 1200 kHz. At 455/800 kHz the array should be longer, at least 200 mm.
Rickard
rnvinc:
--- Quote from: Rickard on October 23, 2018, 05:19:35 PM ---I agree, interesting! The images contain all data needed for calculating beam forms. :) This design looks much better than the older models. I dissected several of the old transducers and most of them were defective in some way. For example, all of the sidescan piezos were more or less displaced. This doesn't seem to be a risk with the new XM 9 20 MSI T Mega. I admire the screws... I have wondered how they managed to get 455, 800 and 1200 kHz from the same ducer. The solution is two parallell sidescan arrays, one for 455/800 kHz and a very thin one for 1200 kHz. The piezos are rather short, just 110 mm, but I think this is optimal for short distance scanning at 1200 kHz. At 455/800 kHz the array should be longer, at least 200 mm.
Rickard
--- End quote ---
This is great Rickard ... My goal was hoping you would be willing to draw beam forms from the pictures provided ...
Please let me know if I can get any other measurements for you ...
-----
I'm also going to draw up some indications of material softness/hardness used in different areas of the internals of the housings so hopefully you can give insight on why certain materials in certain places inside the housing is used ...
I will post the image soon ...
Thanks Rickard ... You're the best!!
Rickie
Whistler:
I love you guys. Keep the gory technical details coming. I'm eagerly anticipating.
rnvinc:
Rickie
Navigation
[0] Message Index
[#] Next page
Go to full version