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Re: UT Probe MSEB 4 T0°Posted by: Udo Schlengermann (PID_172), E-mail: Address, on September 10, 2007 at 11:48 :
Both probes are straight-beam dual-transducer probes, frequency 4 MHz.
Both probes have roof angles of 0°.
The difference is the size of transducers and, of course, of housings:
SEB 4 0°:
Rectangular transducers, size 6 mm x 20 mm,
focus at 25 mm steel,
recommended working range: 10 mm to 400 mm steel.
MSEB 4 0° (minature):
Rectangular transducers, size 3.5 mm x 10 mm,
focus at 18 mm steel,
Recommended working range: 5 mm to 70 mm steel.
The probes are designed for different working ranges.
Tight cracks will not reflect ultrasonic waves, they are acoustically transparent.
Maybe tip-diffraction will give a (weak) ultrasonic signal from a tight crack.
European Application Laboratory
GE Inspection Technologies, Huerth, Germany
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: : : Hello everyone,
: : : Please tell me the fundamental difference in scanning using a MSEB 4E(0 deg) probe & SEB 4K (0 deg) probe. Or which one is better for tight cracks?
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