no€¦ · 20 b. nas-942 1500 30 / 100 indicated strain change (µm/m) max. negative strain min....
TRANSCRIPT
No.55
19
PDA
PCB
PCB
PCB
PCB
PCB
( )
( )
CPU IC
( )
( )
( )
1.
PDA
A.
N A S - 9 4 2
1000 30 /
100
20
B.
NAS-942
1500 30 /
100
Indi
cate
d st
rain
cha
nge
(µm
/m)
Max
. neg
ativ
e st
rain
min.
Zer
o po
int
o.
Max
. pos
itive
str
ain
max
.
No.55
21
22
2.
3.
4.
PDA
5. ICT
IC IC
IC
BGA
BGA
A.
FEA ICT
B.
C.
D.
100 ICT 2 3
5 10
No.55
23
max
min
599
600 to 899
900
6.
1.5m
ICT ICT
PCB
File Name : ICT TEST.ks2Block No : 1/1File Title :Test Date : 2004/10/11 14:26:18
/m
File Name : ICT Principal Stress.ks2Block No : 1/1File Title :Test Date : 2004/10/11 14:26:18
/m
24
122g 200L 145W 1mm 1.5m
X
Y
122g 200L 145W 1mm 1.5m
X
Y
122g 200L 145W 1mm 1.5m
45
X
Y
122g 200L 145W 1mm 1.5m
45
X
Y
No.55
25
X Y
45 X Y
Y
7.
(1)
20 80 20
-30
20
1. Strain
L
m
L
m
10-6 m/m
strain
2. Stress P
P N
A
m2
3.
R
R
K Gage Factor
4.
HOOK'S Law
..............(1)
E
5.
W
= E
?O2@@@@@@@@@hf?W2@@@@@@@@@@@hf?7@(M??I'@X?hgJ@(YfV')Xhg7@H?f?N@1hg@@h@@hg3@L?g@@hgN@1?g@@hg?3@Lf?J@5hg?V')X?eW&(YhgV')K?O&(Y?hg?V4@@@0Y =
P
A
26
M
AB
AB A1B
1
A0B
0
y
.............................(3)
.....................................(4)
..........................(5)
......................(6)
..............................(7)
AA1
M M
dA
(7) (8)
No.55
27
y
Z
y
.....................................(13)
(1) OAB
Z = Iy
max
28
.......................(14)
(l/2)
1. EDX-2000A
100K /
32 64 /
5 320
USB ETHERNET SCISI
2GB/
1.
2. XY
3.
4.
5.
6. FFT
7.
8.
EDX-2000A