Boeing 747 - Page 66

10 0
8
6
2
4
6 0 %
4 0 %
2 0 %
8 0 %
100%
NDT4109
ON
OFF
10P
10N
0
0
20 40
60
E
D
U
A
+5
+1
2.25
5
1
OFF
P
/
4 6 8 10 20
0
2
4
6
8
10
%
NOTCH AND ADJUST THE SETSCREW SO IT IS TIGHT
TO GET A MAXIMUM SIGNAL FROM THE REFERENCE
TURN THE TRANSDUCER IN THE TRANSDUCER GUIDE
5
6
THAN 10% FULL SCREEN WIDTH
INITIAL PULSE SIGNAL MUST NOT BE LARGER
1
INITIAL PULSE SIGNAL
4
3
2
IS AT POSITION "D" MUST BE AT POSITION 95% FSW
THE BACK SURFACE SIGNAL WHEN THE TRANSDUCER
THE BACK SURFACE SIGNAL WHEN THE TRANSDUCER
IS AT POSITION "B" MUST BE AT POSITION 87% FSW
ABOVE THE NOTCH, (TRANSDUCER AT "C")
FIRST BACK SURFACE SIGNAL WITH THE TRANSDUCER
SIGNALS FROM MODE CONVERSION
REFERENCE NOTCH SIGNAL, CLOSE TO 20% FSW
_____ NOTES:
6
TRANSDUCER
GUIDE
TRANSDUCER
5
EDM NOTCH
AA
A-A
THE REFERENCE STANDARD NOTCH
TRANSDUCER GUIDE POSITION ABOVE
GUIDE
TRANSDUCER
SETSCREW
TRANSDUCER
INSTRUMENT
SENSITIVITY CALIBRATION
1
4
2
D
B
A
3 3
2131056 S0000459181_V1
Sensitivity Calibration on Reference Standard NDT4109
Figure 5
747
NONDESTRUCTIVE TEST MANUAL
PART 4 54-30-08
Page 10
Nov 15/2015D6-7170
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
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