55
APPENDIX E. THERMISTOR TEMPERATURE DERIVATION
Thermistor Type: YSI 44005, Dale #1C3001-B3, Alpha #13A3001-B3
Resistance to Temperature Equation:
T=
1
A+B
ሺ
LnR
ሻ
+C(LnR)
3
-273.2
Equation 5 - Convert Thermistor Resistance to Temperature
Where: T
Temperature in
C.
LnR
Natural Log of Thermistor Resistance
A
1.4051
10
-3
(coefficients calculated over the
50 to +150
C. span)
B
2.369
10
-4
C
1.019
10
-7
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
Table 14 - Thermistor Resistance versus Temperature
Содержание LC-2x16
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