|David Harvey |
Instrument Calibration per MIL-STD-2154
My company is preparing to begin the use of MIL-STD-2154 for the testing of Titanium billets. To date, we have not used this specification, since our main product lines are in the nuclear industry. Our merger with OREMET has changed that, and now I must begin to learn about the UT of titanium.
As I read the instrument requirements for MIL-STD-2154, as given in Table II of that document, I am most confused by the "Sensitivity" and "Signal-to-noise" requirements. I am not clear as to just what is being specified based upon the values given in the spec and the procedure described by ASTM.
Is there anyone who can shed some light on the intended interpretation of these specifcation requirements.
Thank you very much for your assistance.
|Rolf Diederichs |
NDT.net, Germany, Joined Nov 1998, 602
Re: Instrument Calibration per MIL-STD-2154 ne the ability to detect small
signals limited by the signal-to-noise ratio.
Ratio of the amplitude of an ultrasonic echo arising from
the discontinuity in a material to the amplitude of the
average background noise signal (grass).
You may also try to find something in NDTnet 1998 May, Vol.3 No.5
This issue focuses on techniques of Ultrasonic Flaw Detectors.
You may check for instance:
The Hardware Concept of a new Digital Ultrasonic NDE System
L.Svilainis and V.Puodziunas; Kaunas Lithuania
Your question may be still not answered complete enough.
Let us try to get some more answers from experts of this forum.
|RAJESH TRIVEDI |
MIL-STD FOR NDT DEAR SIR,
I WOULD LIKE TO INTRODUCE MY SELF AS A NDT INSPECTOR.PRESENTLY WORKING ON B37-200 AIRCRAFT OPEARATED BY BLUE DART AVAITION LTD.CHENNAI,INDIA.
I WOULD LIKE TO HAVE MIL-STD FOR NDT METHODS.
KINDLY LET ME KNOW WHERE IT'S MADE AVAILABLE TO YOUOR IS THERE NAY WEBSITE WHERE I CAN GET ALL THE
DOCUMENTS.KINDLY INFORM ME AT YR ERLIEST.
|Richard Freemantle |
NDT Inspector, Consultant, R&D
Wavelength NDT Limited, United Kingdom, Joined Nov 1998, 16
Re: MIL-STD FOR NDT Dear Rajesh
I got a pdf copy of MIL-STD 5124 from the following website. The site has a free search and download facility.
These other sites might be of use, but as far as I know they do not have any document download.
BS/EN search http://www.bsi-global.com
DIN search http://www2.beuth.de
ASTM search http://www.astm.org
ANSI online http://webstore.ansi.org/ansidocstore
ISO search http://www.iso.ch
NSSN global standards search http://www.nssn.org
Dr. R.J. Freemantle - Managing Director
NDT Solutions Ltd
Keele University Science Park
Tel +44 (0)1782 584306
Fax +44 (0)1782 711093
: DEAR SIR,
: I WOULD LIKE TO INTRODUCE MY SELF AS A NDT INSPECTOR.PRESENTLY WORKING ON B37-200 AIRCRAFT OPEARATED BY BLUE DART AVAITION LTD.CHENNAI,INDIA.
: I WOULD LIKE TO HAVE MIL-STD FOR NDT METHODS.
: KINDLY LET ME KNOW WHERE IT'S MADE AVAILABLE TO YOUOR IS THERE NAY WEBSITE WHERE I CAN GET ALL THE
: DOCUMENTS.KINDLY INFORM ME AT YR ERLIEST.
: THANKING YOU
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