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Technical Discussions
00:05 Jan-15-2002

Suresh Palanisamy

Student, - Ph D Engineering ,
Swinburne University,
Australia,
Joined Jul 2000
5
331 views
Calibration Procedures for Immersion Ultrasound Testing
Hi all,

I am a researcher working on Ultrasound immersion testing of Aluminium parts.
I have a copy of the Australian Standard 2083-1981 -- Calibration Blocks and their methods of use in Ultrasonic Testing,
which explains basically about the ultrasound contact testing.

My question is whether there are any separate calibration standards for ultrasound immersion testing.
If so what are they.

Thank you,

Suresh Palanisamy



 
 
04:48 Jan-15-2002

Udo Schlengermann
Consultant, - ,
Standards Consulting,
Germany,
Joined Nov 1998
139
Re: Calibration Procedures for Immersion Ultrasound Testing
reply by Udo Schlengermann
:

If you look for general standards on ultrasonic immersion technique, please take a look at the following ASTM specifications:

ASTM E124 (2001)
Standard practice for immersed ultrasonic examination by the reflection-method using pulsed longitudinal waves.

ASTM E1001 (1999)
Standard practice for detection and evaluation of discontinuities by the immersed pulsed-echo ultrasonic method using longitudinal waves.

Reference
More details how to use the ultrasonic immersion technique for special test objects you can only get from handbooks or by special training courses.
Reference objects for calibration using immersion technique have to be made close to the original material, size and shape to be examined, containing artificial reflectors if necessary.
Kind regards
Udo Schlengermann
Agfa NDT GmbH

: Hi all,
.
: I am a researcher working on Ultrasound immersion testing of Aluminium parts.
: I have a copy of the Australian Standard 2083-1981 -- Calibration Blocks and their methods of use in Ultrasonic Testing,
: which explains basically about the ultrasound contact testing.
.
: My question is whether there are any separate calibration standards for ultrasound immersion testing.
: If so what are they.
.
: Thank you,
.
: Suresh Palanisamy
.



 
 
08:47 Jan-20-2002

S.V.Swamy
Engineering, - Material Testing Inspection & Quality Control,
Retired from Nuclear Fuel Complex ,
India,
Joined Feb 2001
640
Re: Calibration Procedures for Immersion Ultrasound Testing
In immersion testing, the calibration standards have to be of the same size, shape, material and metalurgical condition, so that the time of travel in the calibration block and the actual test object remains same. As for the transit time for the signal in water, temperature compensation is needed and surface echo triggered gates are best so that the echoes from the test object follow the changes in the surface contour properly.

Swamy

: reply by Udo Schlengermann
: :
.
: If you look for general standards on ultrasonic immersion technique, please take a look at the following ASTM specifications:
.
: ASTM E124 (2001)
: Standard practice for immersed ultrasonic examination by the reflection-method using pulsed longitudinal waves.
.
: ASTM E1001 (1999)
: Standard practice for detection and evaluation of discontinuities by the immersed pulsed-echo ultrasonic method using longitudinal waves.
.
: Reference
: More details how to use the ultrasonic immersion technique for special test objects you can only get from handbooks or by special training courses.
: Reference objects for calibration using immersion technique have to be made close to the original material, size and shape to be examined, containing artificial reflectors if necessary.
: Kind regards
: Udo Schlengermann
: Agfa NDT GmbH
.
: : Hi all,
: .
: : I am a researcher working on Ultrasound immersion testing of Aluminium parts.
: : I have a copy of the Australian Standard 2083-1981 -- Calibration Blocks and their methods of use in Ultrasonic Testing,
: : which explains basically about the ultrasound contact testing.
: .
: : My question is whether there are any separate calibration standards for ultrasound immersion testing.
: : If so what are they.
: .
: : Thank you,
: .
: : Suresh Palanisamy
: .
.



 
 
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