(. 5) −200 +700.
. 5
, . (u, Pt), (.6).
) | ) |
. 6 . ) ; ) .
() , , , , . - , , , (.7).
. 7 . ) ; ) ; ) .
. :
Rt = R * (2)
R 293 ;
T , ;
B , .
2.
2
0, | |||
1 | 1 | ||
5 | 5 | ||
10 | 10 | . 20 | |
50 | 50 | . 21 (46 ) | |
100 | 100 | . 22 | |
10 | 10 | ||
50 | 50 | . 23 (53 ) | |
100 | 100 | . 24 |
, .
8.
. 8 .
1. 70 .
2. . .
3. , .
4. . , .
5. .
:
1. .
2. .
3. , 2.
4. .
5. 70º. g :
|
|
g = (T − T)*100 / T, (3)
T , º;
T , º.
3 70º
t, | , º | |
1 | ||
2 | ||
3 | ||
4 | ||
5 | ||
6 | ||
7 | ||
8 | ||
9 | ||
10 | ||
11 | ||
12 | ||
13 | ||
14 | ||
15 | ||
16 | ||
17 | ||
18 | ||
19 | ||
20 | ||
21 |
1. .
2. .
3
.
, : , , , .
, , , , , (. 9). , t, .
. 9
, t0, . , :
EAB (t, t0) = eAB (t) + eBA (t0) (4)
eAB(t) eBA(t0) , .
t = t0
EAB (t0, t0) = eAB (t0) + eBA (t0) = 0 (5)
eBA (t0) = − eAB (t0) (6)
(6) (4),
EAB (t0, t0) = eAB (t) − eAB (t0) = 0 (7)
, t t0. , t = const, ,
EAB (t0, t0) = f (t) (8)
(. . ), , (. 10) .
.10
. 11
( 8), , . , t0, 0 ( + 20). t0 , , , . :
|
|
EAB (t, t0) = EAB (t, t0) +/− EAB (t0, t0), (9)
EAB (t, t0) t0, ;
EAB (t, t0) t0;
EAB (t0, t0) , , t≠ t0.
t0 < t0, , "". t0 > t0, , "".
, , t0 t0. , t , t0. (. 10):
) EAB (t0, t0), t0 > t0.
) t0 − E(t, t0).
) EAB (t, t0) + EAB (t0, t0), t.
, . , , , , . , . , . , , , .
. . 1 . . . (. 4).
4
| , | |||
. | ||||
- | -20 1300 | 1600 | ||
- | -50 1100 | 1300 | ||
- | -50 600 | 800 |
0,55,2 . , . . . , . . , 1000 , , 1000 . . , . 2.4, . 2.3.
. 12 : 1 , 2 , 3 , 4 , 5 , 6 , 7 .
|
|
. 13
. 12 . , , . , .
(13), t0 t0 , . , . . , , . , , - , - . - , , . F.
, , , , . : , , . , .
, . , R1, R2, R , R4 . .
R , , . , , R4, . 0. R4, , . R4 , .
14.
. 14
1. (-). .
2. .
3. (10mV). , .
4. , .
5. . , .
|
|
6. , .
7. . , .
8. . .
-:
1 14 mV; 28 mV; 35 mV; 49 mV.
2 15 mV; 23 mV; 33 mV; 45 mV.
3 11 mV; 24 mV; 31 mV; 42 mV.
4 17 mV; 22 mV; 30 mV; 47 mV.
5 12 mV; 21 mV; 32 mV; 40 mV.
9. .
10. (-).
11. .3 .8. -
1 55 mV; 65 mV; 73 mV; 90 mV.
2 57 mV; 67 mV; 75 mV; 92 mV.
3 50 mV; 61 mV; 70 mV; 83 mV.
4 59 mV; 68 mV; 77 mV; 95 mV.
5 52 mV; 63 mV; 71 mV; 85 mV.
15. .
:
1. .
2. .
3. 0100º, 5.
g :
g = (Et − E)*100 / Et, (10)
5 0100º
, T, C |
E, mV | , E, mV | , % | , % | |||||
|
|
|
| ||||||
g | g | ||||||||
- | |||||||||
1. | 15 | ||||||||
2. | 15 | ||||||||
3. | 15 | ||||||||
4. | 15 | ||||||||
5. | 15 | ||||||||
- | |||||||||
1. | 15 | ||||||||
2. | 15 | ||||||||
3. | 15 | ||||||||
4. | 15 | ||||||||
5. | 15 |
1. .
2. , .
3. .
4
.