4 Tabela pomiarowa.
Lp. |
German |
ln R |
Platyna |
t |
1/T |
Konstantan |
|||
- |
R[kΩ] |
ΔR[kΩ] |
- |
R[Ω] |
ΔR[Ω] |
[oC] |
[1/oC] |
R[kΩ] |
ΔR[kΩ] |
1 |
2.222 |
±0.007 |
7.7 |
111 |
±0.33 |
30 |
0.03 |
0.009 |
±0.027 |
2 |
1.48 |
±0.0044 |
7.3 |
115 |
±0.34 |
40 |
0.025 |
0.009 |
±0.027 |
3 |
1.043 |
±0.003 |
6.95 |
119.4 |
±0.35 |
50 |
0.02 |
0.009 |
±0.027 |
4 |
0.732 |
±0.002 |
6.5 |
123.2 |
±0.36 |
60 |
0.016 |
0.009 |
±0.027 |
5 |
0.502 |
±0.0015 |
6.2 |
127 |
±0.38 |
70 |
0.014 |
0.009 |
±0.027 |
6 |
0.385 |
±0.001 |
5.95 |
130.91 |
±0.39 |
80 |
0.012 |
0.009 |
±0.027 |
7 |
0.27 |
±0.0008 |
5.6 |
134.7 |
±0.4 |
90 |
0.011 |
0.009 |
±0.027 |
8 |
0.2133 |
±0.0006 |
5.36 |
138.5 |
±0.41 |
100 |
0.01 |
0.009 |
±0.027 |
9 |
0.17 |
±0.0005 |
5.13 |
142.29 |
±0.42 |
110 |
0.009 |
0.009 |
±0.027 |
10 |
0.13 |
±0.0004 |
4.86 |
146.07 |
±0.44 |
120 |
0.0083 |
0.009 |
±0.027 |
11 |
0.097 |
±0.0003 |
4.57 |
149.83 |
±0.45 |
130 |
0.0076 |
0.009 |
±0.027 |
5. Zestawienie wyników. Wnioski.
1) dla metali:
wykres R=f(T);
ekstrapolacja do osi R30;
z wykresu Ro = 111 to = 30oC
2) dla półprzewodników:
tg α = B;
tabela αP=-B/T2
B =Eq/2k
Eq - energia aktywacji,
k - stała Biltzmana
Tabela wartości αP=-B/t2
t |
[oC] |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
110 |
120 |
130 |
αP |
- |
-.0155 |
-0.087 |
-0.055 |
-0.038 |
-0.028 |
-0.021 |
-0.017 |
-0.013 |
-0.01 |
-0.009 |
-0.008 |