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- since 1996 -

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Technical Discussions
Mario J Santos
Teacher
Dep. Eng. Electrotecnica / U. Coimbra, Portugal, Joined Jan 2001, 1

Mario J Santos

Teacher
Dep. Eng. Electrotecnica / U. Coimbra,
Portugal,
Joined Jan 2001
1
06:21 Jan-26-2001
Ultrasonic paper testing


I am interested in study ultrasound propagation in paper by contact mode.

In the beginning I am interested only in the detection of the signal trough the paper (Lamb waves or similar) and velocity measurements in different directions.

I have knowledge of a commercial equipment for this propose that use bimorph ceramics.

I want to know if anybody knows a transducer for this application.


Best regards



    
 
 Reply 
 
Rolf Diederichs
Director,
NDT.net, Germany, Joined Nov 1998, 605

Rolf Diederichs

Director,
NDT.net,
Germany,
Joined Nov 1998
605
07:00 Jan-26-2001
Re: Ultrasonic paper testing
By using the forum search I could find two old forum topics that dealed with Ultrasonic paper testing.

measuring paper
http://www.ndt.net/wshop/forum/messages/71.htm

Contact transducers with paper??
http://www.ndt.net/wshop/forum/messages/190.htm


:
: I am interested in study ultrasound propagation in paper by contact mode.

: In the beginning I am interested only in the detection of the signal trough the paper (Lamb waves or similar) and velocity measurements in different directions.

: I have knowledge of a commercial equipment for this propose that use bimorph ceramics.

: I want to know if anybody knows a transducer for this application.

:
: Best regards




    
 
 Reply 
 
Rogerio
Rogerio
03:58 May-23-2001
Ultrasonic
:
: I am interested in study ultrasound aplication in pulp and paper.
: In the beginning I am interested only in the efects ultrasonic waves in cellulose fiber.
: I want to know if this application is possible
:
: Best regards




    
 
 Reply 
 
Rogerio
Rogerio
03:59 May-23-2001
Ultrasonic
:
: I am interested in study ultrasound aplication in pulp and paper.
: In the beginning I am interested only in the efects of ultrasonic waves in cellulose fiber.
: I want to know if this application is possible.
:
: Best regards




    
 
 Reply 
 
Rogerio
Rogerio
03:59 May-23-2001
Ultrasonic
:
: I am interested in study ultrasound aplication in pulp and paper.
: In the beginning I am interested only in the efects of ultrasonic waves in cellulose fiber.
: I want to know if this application is possible.
:
: Best regards




    
 
 Reply 
 
Williams Suinaga
Williams Suinaga
09:26 Nov-03-2001
Re: Ultrasonic
: :
: : I am interested in study ultrasound aplication in roal transports.
: : I want to know if this application is possible.
: :
: : Best regards
.



    
 
 Reply 
 
Manuel López
Manuel López
03:15 Aug-30-2002
Re: Ultrasonic paper bleaching and deinking
: : I'm looking for information about different deinking process.
: : I am interested in study ultrasound bleaching and deinking in paper.
.
: : please sent to me afew documants which I am interseted
: : Best regards
.



    
 
 Reply 
 

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