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Sonatest Ltd
From our three distinct business centres in the UK, USA and CANADA, Sonatest design and produce a leading range of high performance ultrasonic NDT equipment and accessories.
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Technical Discussions
Martin Nyman
Martin Nyman
07:50 Dec-07-2004
Ultrasonic interference pattern recognition products

Hi,
I'm looking for manufacturers of systems for automatic recognition/control of objects. What we want to do is to check whether a screw is fully down or not. (Measurement of the distance between the top of the screw and the surface which it is screwed against, preferably with some kind of interference pattern recognition.)

Thanks in advance,

Martin Nyman


    
 
 Reply 
 
David Forsyth
R & D
TRI/Austin, USA, Joined Nov 2001, 41

David Forsyth

R & D
TRI/Austin,
USA,
Joined Nov 2001
41
09:21 Dec-07-2004
Re: Ultrasonic interference pattern recognition products
Without knowing everything about your application, I may be missing some important reason to use UT. However, for accurate and practical distance measurements, we have used these sensors:

http://www.keyence.com/products/vision/laser/lk/lk.php

and I am sure there are other vendors of similar products.

Dave.

----------- Start Original Message -----------
: Hi,
: I'm looking for manufacturers of systems for automatic recognition/control of objects. What we want to do is to check whether a screw is fully down or not. (Measurement of the distance between the top of the screw and the surface which it is screwed against, preferably with some kind of interference pattern recognition.)
: Thanks in advance,
: Martin Nyman
------------ End Original Message ------------




    
 
 Reply 
 
Martin Nyman
Martin Nyman
00:53 Dec-08-2004
Re: Ultrasonic interference pattern recognition products
Thank you for your quick reply,

The reason for using ultrasonic equipment would mainly be the price, I don't know the exact cost of the systems you mentioned but the ones I have seen are fairly expensive (1000$ and upwards). We need a cheaper solution. Also, we only need a resolution of 0.3mm or better.


----------- Start Original Message -----------
: Without knowing everything about your application, I may be missing some important reason to use UT. However, for accurate and practical distance measurements, we have used these sensors:
: http://www.keyence.com/products/vision/laser/lk/lk.php
: and I am sure there are other vendors of similar products.
: Dave.
: : Hi,
: : I'm looking for manufacturers of systems for automatic recognition/control of objects. What we want to do is to check whether a screw is fully down or not. (Measurement of the distance between the top of the screw and the surface which it is screwed against, preferably with some kind of interference pattern recognition.)
: : Thanks in advance,
: : Martin Nyman
------------ End Original Message ------------




    
 
 Reply 
 

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