Appendix C.Thermistor Temperature Derivation
Thermistor type: YSI 44005, Dale #1C3001-B3, Alpha #13A3001-B3
Resistance to Temperature Equation:
equation 8: Resistance to Temperature
Where:
T = Temperature in °C
LnR = Natural Log of Thermistor Resistance
A = 1.4051 x 10-3
B = 2.369 x 10-4
C = 1.019 x 10-7
Note: Coefficients calculated over the -50 to +150 °C span.
|
Ohms |
Temp |
Ohms |
Temp |
Ohms |
Temp |
Ohms |
Temp |
Ohms |
Temp |
|
201.1K |
-50 |
16.60K |
-10 |
2417 |
+30 |
525.4 |
+70 |
153.2 |
+110 |
|
187.3K |
-49 |
15.72K |
-9 |
2317 |
31 |
507.8 |
71 |
149.0 |
111 |
|
174.5K |
-48 |
14.90K |
-8 |
2221 |
32 |
490.9 |
72 |
145.0 |
112 |
|
162.7K |
-47 |
14.12K |
-7 |
2130 |
33 |
474.7 |
73 |
141.1 |
113 |
|
151.7K |
-46 |
13.39K |
-6 |
2042 |
34 |
459.0 |
74 |
137.2 |
114 |
|
141.6K |
-45 |
12.70K |
-5 |
1959 |
35 |
444.0 |
75 |
133.6 |
115 |
|
132.2K |
-44 |
12.05K |
-4 |
1880 |
36 |
429.5 |
76 |
130.0 |
116 |
|
123.5K |
-43 |
11.44K |
-3 |
1805 |
37 |
415.6 |
77 |
126.5 |
117 |
|
115.4K |
-42 |
10.86K |
-2 |
1733 |
38 |
402.2 |
78 |
123.2 |
118 |
|
107.9K |
-41 |
10.31K |
-1 |
1664 |
39 |
389.3 |
79 |
119.9 |
119 |
|
101.0K |
-40 |
9796 |
0 |
1598 |
40 |
376.9 |
80 |
116.8 |
120 |
|
94.48K |
-39 |
9310 |
+1 |
1535 |
41 |
364.9 |
81 |
113.8 |
121 |
|
88.46K |
-38 |
8851 |
2 |
1475 |
42 |
353.4 |
82 |
110.8 |
122 |
|
82.87K |
-37 |
8417 |
3 |
1418 |
43 |
342.2 |
83 |
107.9 |
123 |
|
77.66K |
-36 |
8006 |
4 |
1363 |
44 |
331.5 |
84 |
105.2 |
124 |
|
72.81K |
-35 |
7618 |
5 |
1310 |
45 |
321.2 |
85 |
102.5 |
125 |
|
68.30K |
-34 |
7252 |
6 |
1260 |
46 |
311.3 |
86 |
99.9 |
126 |
|
64.09K |
-33 |
6905 |
7 |
1212 |
47 |
301.7 |
87 |
97.3 |
127 |
|
60.17K |
-32 |
6576 |
8 |
1167 |
48 |
292.4 |
88 |
94.9 |
128 |
|
56.51K |
-31 |
6265 |
9 |
1123 |
49 |
283.5 |
89 |
92.5 |
129 |
|
53.10K |
-30 |
5971 |
10 |
1081 |
50 |
274.9 |
90 |
90.2 |
130 |
|
49.91K |
-29 |
5692 |
11 |
1040 |
51 |
266.6 |
91 |
87.9 |
131 |
|
46.94K |
-28 |
5427 |
12 |
1002 |
52 |
258.6 |
92 |
85.7 |
132 |
|
44.16K |
-27 |
5177 |
13 |
965.0 |
53 |
250.9 |
93 |
83.6 |
133 |
|
41.56K |
-26 |
4939 |
14 |
929.6 |
54 |
243.4 |
94 |
81.6 |
134 |
|
39.13K |
-25 |
4714 |
15 |
895.8 |
55 |
236.2 |
95 |
79.6 |
135 |
|
36.86K |
-24 |
4500 |
16 |
863.3 |
56 |
229.3 |
96 |
77.6 |
136 |
|
34.73K |
-23 |
4297 |
17 |
832.2 |
57 |
222.6 |
97 |
75.8 |
137 |
|
32.74K |
-22 |
4105 |
18 |
802.3 |
58 |
216.1 |
98 |
73.9 |
138 |
|
30.87K |
-21 |
3922 |
19 |
773.7 |
59 |
209.8 |
99 |
72.2 |
139 |
|
29.13K |
-20 |
3748 |
20 |
746.3 |
60 |
203.8 |
100 |
70.4 |
140 |
|
27.49K |
-19 |
3583 |
21 |
719.9 |
61 |
197.9 |
101 |
68.8 |
141 |
|
25.95K |
-18 |
3426 |
22 |
694.7 |
62 |
192.2 |
102 |
67.1 |
142 |
|
24.51K |
-17 |
3277 |
23 |
670.4 |
63 |
186.8 |
103 |
65.5 |
143 |
|
23.16K |
-16 |
3135 |
24 |
647.1 |
64 |
181.5 |
104 |
64.0 |
144 |
|
21.89K |
-15 |
3000 |
25 |
624.7 |
65 |
176.4 |
105 |
62.5 |
145 |
|
20.70K |
-14 |
2872 |
26 |
603.3 |
66 |
171.4 |
106 |
61.1 |
146 |
|
19.58K |
-13 |
2750 |
27 |
582.6 |
67 |
166.7 |
107 |
59.6 |
147 |
|
18.52K |
-12 |
2633 |
28 |
562.8 |
68 |
162.0 |
108 |
58.3 |
148 |
|
17.53K |
-11 |
2523 |
29 |
543.7 |
69 |
157.6 |
109 |
56.8 |
149 |
|
|
55.6 |
150 |
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