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Technical Discussions
Doo Chul Park
Doo Chul Park
03:02 Nov-04-1999
Non-contact Ultrasonic Scanner

I'm looking for non-contact ultrasonic scanning system for
3D imagining. I want to make 3D image of bones by means of auto scanning.
0.1mm resolution can be allowd.
Please help me to find non-contact ultrasonic scanning system.
Any comment will be appriciated.
Thank you!


 
 Reply 
 
Dipl.-Ing. Martin Heinz
Dipl.-Ing. Martin Heinz
09:54 Nov-04-1999
Re: Non-contact Ultrasonic Scanner
: I'm looking for non-contact ultrasonic scanning system for
: 3D imagining. I want to make 3D image of bones by means of auto scanning.
: 0.1mm resolution can be allowd.
: Please help me to find non-contact ultrasonic scanning system.
: Any comment will be appriciated.
: Thank you!

Dear Sir,

little time ago we made a study, where we examinated the possibilities of enhancing medical imaging
by the use of tomographic methods. For this we builted up a experimental setup, where we scanned
a test object, exposed in a water tank by different directions using a normal 7,5 MHz medical scanner
(a linear array). With the reference of angular direction and position of the test object in correspon-
dence to the scanner we calculated a new image by tomographic methods.
Thus we obtaned a much higher aperture, minimizing speckle and other ultrasonic artefacts.
The test object was a Agar-Agar-phantom with embedded small kidney stones.
As you can see in our sample image, even the smallest stones are now visible.

As I could not attach the image by the form of the NDT.net forum (it is not possible to attach a simple
file) I will send it by a separate e-mail.
I will send the image also to everyone peron, which is interested in.

If you has interest in a cooperation for building up a ultrasonic tomography system following
your special needs, don`t hesitate to contact me again.

Best regards,

Dipl.-Ing. Martin Heinz.




 
 Reply 
 
Wieslaw Bicz
Wieslaw Bicz
01:45 Nov-04-1999
Re: Non-contact Ultrasonic Scanner
: I'm looking for non-contact ultrasonic scanning system for
: 3D imagining. I want to make 3D image of bones by means of auto scanning.
: 0.1mm resolution can be allowd.
: Please help me to find non-contact ultrasonic scanning system.
: Any comment will be appriciated.
: Thank you!

If you can accept, that your bone will be measured in water and measuring time of about 30 second - 1 minute (for each side of the bone) - we can sell you such scanner.
Resolution will be probably even higher (0.01mm are possible).

The price will be 27,000 Euro. It is possible to make such a scanner working very quickly (in real time), but the price for the first device must be higher (about 40,000 Euro)

Regards

Wieslaw Bicz

(http://www.optel.com.pl)



 
 Reply 
 

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