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Technical Discussions
R Martin
R Martin
00:01 May-03-2001
Immersion vs Contact Transducers

This may sound like a silly question, but what is the difference
between an immersion and contact transducer. Is it just the fact that the immersion probe is waterproof or is the construction different (wear plate, impedence matching)? Any
answers will be greatly appreciated.

Thank You

R. Martin


    
 
 
Paul Meyer
R & D,
GE Inspection Technologies, USA, Joined Nov 1998, 47

Paul Meyer

R & D,
GE Inspection Technologies,
USA,
Joined Nov 1998
47
00:47 May-03-2001
Re: Immersion vs Contact Transducers
It's not a silly question. Immersion transducers are normally housed to be used in scanning immersion systems and are also designed transmit into water. Contact transducers are often housed to be hand-held and also utilize abrasion resistent wearfaces. These are not absolutes. Delay line and angle beam transducers transmit into low impedance plastics and are more similar to immersion transducers than to contact transducers.
If you're in doubt about which design to use in a particular situation, talk to the marketing or applications people at your supplier.
I hope this helps.
Paul

: This may sound like a silly question, but what is the difference
: between an immersion and contact transducer. Is it just the fact that the immersion probe is waterproof or is the construction different (wear plate, impedence matching)? Any
: answers will be greatly appreciated.
.
: Thank You
.
: R. Martin
.



    
 
 

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