Boeing 747 - Page 65

60%
40%
20%
100%
10 0
8
6
2
4
80%
B-B
TRANSDUCER
GUIDE
SET SCREW
TRANSDUCER
A-A
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
%
D C B
EDM NOTCH
POSITION A
TRANSDUCER
GUIDE
SET SCREW
TRANSDUCER
(NOT TO SCALE)
REFERENCE STANDARD
TRANSDUCER
GUIDE
REFERENCE
STANDARD
NDT4109
SOUND WAVES
(38 MM) AND 3 INCHES (76 MM) OF SOUND
THE FIRST AND SECOND BACK SURFACE
SIGNALS
WHEN THE TRANSDUCER IS AT
POSITION "A" ON REFERENCE STANDARD
NDT4109.
THESE SIGNALS SHOW 1.5 INCHES
TRAVEL THROUGH THE REFERENCE STANDARD.
2 31
4
4
A A
B
B
(80%)(40%)
5
_____ NOTES:
3
2
1
THE TRANSDUCER GUIDE
PUT THE BOTTOM OF THE TRANSDUCER EQUAL WITH THE BOTTOM OF
MODE CONVERSION SIGNALS - IGNORE THESE SIGNALS
SECOND BACK SURFACE SIGNAL - SET AT 80% FULL SCREEN WIDTH
FIRST
BACK SURFACE SIGNAL - SET AT 40% FULL SCREEN WIDTH
INITIAL PULSE SIGNAL
5
4
2131052 S0000459180_V1
Screen Calibration for Reference Standard NDT4109
Figure 4
747
NONDESTRUCTIVE TEST MANUAL
PART 4 54-30-08
Page 9
Nov 15/2015D6-7170
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ALL