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- since 1996 -
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Technical Discussions
KK
KK
09:19 Nov-29-1999
Ultrasonic delay lines

I have a high temperature application. I am connecting the
transducer to the high temperature area via a delay line.
I will be using pulse echo method to measure distance.
I need to create a bend in the delay line.
Will this effect the signals received?

Can the delay line touch surrounding surface (e.g if in a hole)?

I would be grateful to anyone who can enlighten me on these queries.


    
 
 Reply 
 
kk
Student
King's College London, United Kingdom, Joined Nov 1999, 2

kk

Student
King's College London,
United Kingdom,
Joined Nov 1999
2
09:21 Nov-29-1999
Re: Ultrasonic delay lines
: I have a high temperature application. I am connecting the
: transducer to the high temperature area via a delay line.
: I will be using pulse echo method to measure distance.
: I need to create a bend in the delay line.
: Will this effect the signals received?

: Can the delay line touch surrounding surface (e.g if in a hole)?

what is a good material for the delay line if it is
contact with H13 steel at one end and transducer at the
other?
: I would be grateful to anyone who can enlighten me on these queries.




    
 
 Reply 
 
Tom Nelligan
Engineering,
retired, USA, Joined Nov 1998, 390

Tom Nelligan

Engineering,
retired,
USA,
Joined Nov 1998
390
09:41 Nov-29-1999
Re: Ultrasonic delay lines
ry. Contact with the outer surface of the delay line should not be a problem. As for materials, there are a number of high temperature delay line materials used by my company (and by our competitors), many of them polymers that are stable at high temperatures, but I'm afraid that most manufacturers consider the formulation of the more specialized materials as commercially proprietary.

--Tom Nelligan


    
 
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