Boeing 747 - Page 42

5
5
3
4
2
1
INSTRUMENT SENSITIVITY CALIBRATION
4
3
2
1
STANDARD
REFERENCE
NDT 4107
NOTCH
REFERENCE
(VIEW ROTATED 90 DEGREES COUNTERCLOCKWISE)
A-A
TRANSDUCER
GUIDE
TRANSDUCER
A A
60%
40%
20%
100%
10 0
80%
8
6
2
4
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
%
TURN THE TRANSDUCER IN THE GUIDE TO GET A
10% FULL SCREEN WIDTH
INITIAL PULSE SIGNAL MUST NOT BE LARGER THAN
SIGNALS FROM MODE CONVERSION
CORRECT SCREEN POSITION
REFERENCE NOTCH SIGNAL. SEE TABLE 1 FOR THE
INITIAL PULSE SIGNAL
AND ADJUST THE SETSCREW SO IT IS TIGHT
MAXIMUM SIGNAL FROM THE REFERENCE NOTCH
NOTES: _____
2130648 S0000459166_V1
Sensitivity Calibration on Reference Standard NDT4107
Figure 7
747
NONDESTRUCTIVE TEST MANUAL
PART 4 54-30-06
Page 12
Nov 15/2015D6-7170
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
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