View
230
Download
3
Category
Preview:
Citation preview
O
E-mail: katsiki@auth.gr
Web: users.auth.gr/katsiki
()
-
( )
..
L
m L:
m:
:
(, , ....)
Lm, T L/m, T L?????
xaay 10
22
2
0
ii
iiiii
xxN
yxxxya
221
ii
iiii
xxN
yxyxNa
2
i
2
i
2
i
2
i
iiii
yyNxxN
yxyxNR
( )
-1 1
R
!
L(m) T (sec)
0.130 0.800
0.345 1.28
0.830 1.86
1.65 2.55
4.25 4.00
8.90 5.50
L T;
(i) =L+ (ii) =/L + (iii) = + L (, =)
R
R = 0.9698
0
1
2
3
4
5
6
7
0 2 4 6 8 10L
T
R = -0.7236
0
1
2
3
4
5
6
0 2 4 6 8 101/L
T
T = 1.79 L1/2
+ 0.2173
R = 0.9995
0
1
2
3
4
5
6
0 1 2 3 4T
L1/2
xaay 10
22
2
0
ii
iiiii
xxN
yxxxya
221
ii
iiii
xxN
yxyxNa
:
2
i
2
i
2
y
axxN
N
1
2N
axay2
0i1i2
y
a0 a1
2
i
2
i
2
i
2
y
axxN
x
0
0 10 a 1 a
y a a x
:
:
:
n n
m m i i
i 1 i 1
1 1x , y x , y
n n
0
10
20
30
40
50
0 2 4 6 8 10 12 14 16 18 20 22
X
y
a0 a1
()
.
68%
a1a1
aaa0.
( . Newton,
=F/m)
x-y
R=0.886
R=0.999
( -)
I-V
= /V= 1/R
-
RtIQ 2
Joule
R0 : 0
00 TT1RTR
:
(Cu=0.0039K
-1) R~
-
:
V
A
+ - E Ohm
I
VR
(
)
- & R
= R .
PTC
TC
Negative
Temperature
Coefficient
() T
B
eAR
0 R0 0T
B
0 eAR
0
0
T
1
T
1B
0
T
B
T
B
0
eRR
eA
eA
R
R
NTC
= +
.TTdt
dTCIV
( J / K )
EWTON
( W / K )
C
5. (V) COM V//.
( , ).
5 V. ; ;
. .
(oC)
( 3 ).
. 59-71 ()
COM V//.
.
. ; , NTC PTC;
. 1, 3 5 min. .
;
. ;
. ;
.
-V
o ( Power OFF, 0 Volts) () 1 mA RAN: 2 2 V RAN: 2
-V
20 (V) () (0.5 10 Volt 0.50 Volt).
!!!
,
.
10 Volt,
( V ).
( ).
R (=V/I) V.
. (),
RV
IV; RV
IV;
IV ( ) .
(0, 0);
() R-V ()
IV.
.
-V .
R
( ). .
, ,
;
V . ; ,
;
() V;
()
() ()
;
;
Recommended