Boeing 747 - Page 40

5
5
3
2
1
4
4
3
4
2
1
B
B
AA
60%
40%
20%
100%
10 0
8
6
2
80%
4
(40%) (80%)
D C B
NOTES: _____
TRANSDUCER
STANDARD
REFERENCE
GUIDE
TRANSDUCER
B-B
SET SCREW
TRANSDUCER
A-A
GUIDE
TRANSDUCER
GUIDE
TRANSDUCER
POSITION A
SOUND WAVES
EDM NOTCH
(NOT TO SCALE)
REFERENCE STANDARD
NDT4107
(50 MM) AND 4.0 INCHES (101 MM) OF SOUND
OF THE TRANSDUCER GUIDE
INITIAL PULSE SIGNAL
FIRST BACK SURFACE SIGNAL - SET AT 40% FULL SCREEN WIDTH
SECOND BACK SURFACE SIGNAL - SET AT 80% FULL SCREEN WIDTH
MODE CONVERSION SIGNALS - IGNORE THESE SIGNALS
PUT THE BOTTOM OF THE TRANSDUCER EQUAL WITH THE BOTTOM
TRAVEL THROUGH THE REFERENCE STANDARD.
POSITION "A" ON REFERENCE STANDARD
SIGNALS WHEN THE TRANSDUCER IS AT
THE FIRST AND SECOND BACK SURFACE
NDT4107. THESE SIGNALS SHOW 2.0 INCHES
2130642 S0000459164_V1
Screen Calibration for Reference Standard NDT4107
Figure 5
747
NONDESTRUCTIVE TEST MANUAL
PART 4 54-30-06
Page 10
Nov 15/2015D6-7170
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ALL