Table 6 - Comparison Of Curve Fitting Equations; Figure 32 - Thermistor Resistance Versus Temperature - Newport 6000 Operation And Maintenance Manual

64 Chapter 5
2
Resistance of a 10K, Fenwal UUA41J1 thermistor.
3
Constants A' = 0.963 * 10
4
Constants

Figure 32 - Thermistor Resistance versus Temperature

----------Error T (°C)----------
2
R
97072
55326
32650
19899
12492
10000
8057
5326
3602

Table 6 - Comparison of Curve Fitting Equations

-3
, B' = 2.598 * 10
-3
A = 1.125 * 10
-4
B = 2.347 * 10
-7
C = 0.855 * 10
Temperature Controller Operation
T Actual First Order
-20.00
-10.00
0.00
10.00
20.00
25.00
30.00
40.00
50.00
-4
(C1 = 1.125)
(C2 = 2.347)
(C3 = 0.855)
Third Order
3
Fit. Eq. 2 Fit. Eq. 1
-0.00
0.00
-0.00
-0.00
-0.00
0.00
0.00
0.00
-0.00
4
-0.32
-0.06
0.09
0.15
0.13
0.08
0.01
-0.20
-0.50