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Technical Discussions
Gisli Arnar Gudmundsson
Gisli Arnar Gudmundsson
06:23 Feb-29-2008
Underwater NDT

How common is it in europe or USA to Measure thickness of Steel Sheet pile in harbour´s and is it done by diver or R.O.V.?

I have been trying to find something about this on the internet and the resaults haven´t been so good.

I am asking because it has never been done here in Iceland.

Thank´s

Gisli


    
 
 
Simon Amallraja
Simon Amallraja
08:52 Feb-29-2008
Re: Underwater NDT
----------- Start Original Message -----------
: How common is it in europe or USA to Measure thickness of Steel Sheet pile in harbour´s and is it done by diver or R.O.V.?
: I have been trying to find something about this on the internet and the resaults haven´t been so good.
: I am asking because it has never been done here in Iceland.
: Thank´s
: Gisli
------------ End Original Message ------------

Force Technology of Denmark will help you. They have ROV type inspection for underwater applications.
www.forcetechnolgy.com

Simon


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

Tom Nelligan

Engineering,
retired,
USA,
Joined Nov 1998
390
01:42 Feb-29-2008
Re: Underwater NDT
We have provided waterproof transducers and cables from the Panametrics-NDT product line for underwater inspection at depths greater than 50 meters. In most cases these applications have involved relatively shallow depths (tens of meters), with a diver manipulating the transducer while an observer on a dock or boat or oil platform monitors the instrument.


----------- Start Original Message -----------
: How common is it in europe or USA to Measure thickness of Steel Sheet pile in harbour´s and is it done by diver or R.O.V.?
: I have been trying to find something about this on the internet and the resaults haven´t been so good.
: I am asking because it has never been done here in Iceland.
: Thank´s
: Gisli
------------ End Original Message ------------




    
 
 
Peter Simpson
Director,
Ashtead Technology Ltd, United Kingdom, Joined Oct 1999, 12

Peter Simpson

Director,
Ashtead Technology Ltd,
United Kingdom,
Joined Oct 1999
12
03:48 Feb-29-2008
Re: Underwater NDT

There are two underwater ultrasonic thickness gauges available from Cygnus Instruments that can be used by ROV or Diver. Either system are available for rental from Ashtead Technology Ltd.


Best Regards


Peter

----------- Start Original Message -----------
: We have provided waterproof transducers and cables from the Panametrics-NDT product line for underwater inspection at depths greater than 50 meters. In most cases these applications have involved relatively shallow depths (tens of meters), with a diver manipulating the transducer while an observer on a dock or boat or oil platform monitors the instrument.
:
: : How common is it in europe or USA to Measure thickness of Steel Sheet pile in harbour´s and is it done by diver or R.O.V.?
: : I have been trying to find something about this on the internet and the resaults haven´t been so good.
: : I am asking because it has never been done here in Iceland.
: : Thank´s
: : Gisli
------------ End Original Message ------------




    
 
 
Joe Buckley
Consultant, ASNT L-III, Honorary Secretary of BINDT
Level X NDT, BINDT, United Kingdom, Joined Oct 1999, 517

Joe Buckley

Consultant, ASNT L-III, Honorary Secretary of BINDT
Level X NDT, BINDT,
United Kingdom,
Joined Oct 1999
517
00:41 Mar-01-2008
Re: Underwater NDT
If , as I would interpret the question, this is stanadrd interlocking steel piling then an ROV seems a bit excessive - Should be easy enough with a diver and a thickness gauge- Can be done either two-man with a long cable or using a submersible gauge - Our basic gauges (Sonagage III, Steelgage II or T-Gage IV, ) with a UMX enclosure would do the job, The Cygnus underwater gauges also seem to be well regarded.

Joe


----------- Start Original Message -----------
: How common is it in europe or USA to Measure thickness of Steel Sheet pile in harbour´s and is it done by diver or R.O.V.?
: I have been trying to find something about this on the internet and the resaults haven´t been so good.
: I am asking because it has never been done here in Iceland.
: Thank´s
: Gisli
------------ End Original Message ------------




    
 
 
Gisli A. Gudmundsson
Gisli A. Gudmundsson
02:06 Mar-03-2008
Re: Underwater NDT
Thanks guys for quick response.

Greetings from Iceland


    
 
 
Riccardo scottini
Riccardo scottini
00:47 Mar-12-2008
Re: Underwater NDT
Dear Gisli,

RTD-INCOTEST could be a solution for your purposes.

INCOTEST is a Pulsed Eddy Current equipment designed for corrosion detection and monitoring through insulation, therefore it does not need a direct contact with the object under examination.

We regularly use it to inspect and monitor Steel Sheet Piling conditions. It is efficient also in detecting Accelerated Low Water Corrosion in steel sheet piling, commonly used in harbours, Quay's, canals and dikes. ALWC can have a growth rate of 1 mm per year!

Operation normally with divers or Stick, sometime with ROV which are preferred when the inspection depth is more than 30m (example non piggable subsea pipelines in the North sea at approx. 140~160m depth), it does not need special surface cleaning and preparation, therefore it may detect corrosion trough coatings, concrete and marine growth.

For more information please contact me.
Regards,
Riccardo Scottini



    
 
 
andrea Bellizzi
Director,
Italy, Joined Feb 2015, 1

andrea Bellizzi

Director,
Italy,
Joined Feb 2015
1
14:54 Feb-24-2015
Re: Underwater NDT
In Reply to Riccardo scottini at 00:47 Mar-12-2008 .

Hi Riccardo,
may I have your contact mail or phone we are interesing in Pulse Eddy Current tecnology

    
 
 

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