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Zawada NDT
Suppliers of instruments to test steel wire ropes in-situ, using magnetic, non-destructive method.
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Technical Discussions
Ken
Ken
02:32 Apr-26-2001
high speed rail inspection

hi everyone,

i'm currently doing research on rail inspection and was wondering
if there any technology available for detecting cracks at high
speed?? (150-200 miles/hr).

Thanks in advance,
Ken



 
 Reply 
 
John Hansen
Director, - Eddy Current Technology
ETher NDE Ltd, United Kingdom, Joined Oct 1999, 73

John Hansen

Director, - Eddy Current Technology
ETher NDE Ltd,
United Kingdom,
Joined Oct 1999
73
07:57 Apr-26-2001
Re: high speed rail inspection
I would say that eddy current should be top of the list. The other techniques are going to be too slow.

Advantages
Inspection speed limited by response of front end. We have tested in copper rod mills at 60mph
Signal coupling efficiency is reliable.
Disadvantage
Surface breaking defects only.

Regards

John Hansen
Hocking NDT Ltd.


 
 Reply 
 
Steve Kane
Steve Kane
08:20 Apr-26-2001
Re: high speed rail inspection
You may want to contact DAPCO, Ridgefield, CT. Phone
203-438-9696. They have much experience with rail inspection.



 
 Reply 
 
Ron Mahler
Ron Mahler
00:40 Apr-29-2001
Re: high speed rail inspection
: hi everyone,
.
: i'm currently doing research on rail inspection and was wondering
: if there any technology available for detecting cracks at high
: speed?? (150-200 miles/hr).

Hi Ken,
DB (the German Railways) operates for the last 4 years a high speed rail inspection system from ScanMaster (see details at www.scanmaster-irt.com)
The system is up to 100Km/Hr and resolution of defect is 6.0 mm.
There are several phisical limitations by increasing the speed above this limit.
.
: Thanks in advance,
: Ken
.



 
 Reply 
 
SHARIF ABDEEN
SHARIF ABDEEN
07:55 Feb-05-2002
Re: high speed rail inspection
: : hi everyone,
: .
: : i'm currently doing research on rail inspection and was wondering
: : if there any technology available for detecting cracks at high
: : speed?? (150-200 miles/hr).
.
: Hi Ken,
: DB (the German Railways) operates for the last 4 years a high speed rail inspection system from ScanMaster (see details at www.scanmaster-irt.com)
: The system is up to 100Km/Hr and resolution of defect is 6.0 mm.
: There are several phisical limitations by increasing the speed above this limit.
: .
: : Thanks in advance,
: : Ken
: .
.GOOD




 
 Reply 
 

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