Modelo serie 4500 piezómetro de cuerda vibrante

Apéndice B.Derivación de la temperatura del termistor

B.1Resistencia de termistor de 3KΩ

Tipos de termistor:

■YSI 44005, Dale #1C3001–B3, Alpha #13A3001–B3

■Honeywell 192–302LET–A01

Ecuación para obtener la resistencia a la temperatura:

T =	1	– 273.15 °C
	A+B(LnR)+C(LnR)³

ecuación 6: Resistencia de termistor de 3KΩ

Donde:

T = Temperatura en °C

LnR = Registro natural de la resistencia del termistor

A = 1.4051 x 10^–3

B = 2.369 x 10^–4

C = 1.019 x 10^–7

Nota: Coeficientes calculados entre los 50 y los +150 °C.

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

Tabla 6: Resistencia de termistor de 3KΩ

B.2Resistencia de termistor de 10kΩ

Tipo de termistor: Sensor US 103JL1A

Ecuación para obtener la resistencia a la temperatura:

T =	1	- 273.15
	A+B(LnR)+C(LnR)³+D(LnR)⁵

ecuación 7: Resistencia de termistor de 10kΩ

Donde:

T = Temperatura en °C

LnR = Registro natural de la resistencia del termistor

A = 1.127670 x 10^–³

B = 2.344442 x 10^–⁴

C = 8.476921 x 10^–⁸

C = 1.175122 x 10^–11

Nota: Los coeficientes optimizados para un termistor curva J entre las temperaturas de
0 ºC y +250 ºC.

Ohmios	Temp.
32650	0
31029	1
29498	2
28052	3
26685	4
25392	5
24170	6
23013	7
21918	8
20882	9
19901	10
18971	11
18090	12
17255	13
16463	14
15712	15
14999	16
14323	17
13681	18
13072	19
12493	20
11942	21
11419	22
10922	23
10450	24
10000	25
9572	26
9165	27
8777	28
8408	29
8057	30
7722	31
7402	32
7098	33
6808	34
6531	35
6267	36
6015	37
5775	38
5545	39
5326	40
5117	41
4917	42
4725	43
4543	44
4368	45
4201	46
4041	47
3888	48
3742	49
3602	50
3468	51
3340	52
3217	53
3099	54
2986	55
2878	56
2774	57
2675	58
2579	59
2488	60
2400	61
2316	62
2235	63
2157	64
2083	65
2011	66
1942	67
1876	68
1813	69
1752	70
1693	71
1637	72
1582	73
1530	74
1480	75
1432	76
1385	77
1340	78
1297	79
1255	80
1215	81
1177	82
1140	83
1104	84
1070	85
1037	86
1005	87
973.8	88
944.1	89
915.5	90
887.8	91
861.2	92
835.4	93
810.6	94
786.6	95
763.5	96
741.2	97
719.6	98
698.7	99
678.6	100
659.1	101
640.3	102
622.2	103
604.6	104
587.6	105
571.2	106
555.3	107
539.9	108
525.0	109
510.6	110
496.7	111
483.2	112
470.1	113
457.5	114
445.3	115
433.4	116
421.9	117
410.8	118
400.0	119
389.6	120
379.4	121
369.6	122
360.1	123
350.9	124
341.9	125
333.2	126
324.8	127
316.6	128
308.7	129
301.0	130
293.5	131
286.3	132
279.2	133
272.4	134
265.8	135
259.3	136
253.1	137
247.0	138
241.1	139
235.3	140
229.7	141
224.3	142
219.0	143
213.9	144
208.9	145
204.1	146
199.4	147
194.8	148
190.3	149
186.1	150
181.9	151
177.7	152
173.7	153
169.8	154
166.0	155
162.3	156
158.6	157
155.1	158
151.7	159
148.4	160
145.1	161
142.0	162
138.9	163
135.9	164
133.0	165
130.1	166
127.3	167
124.6	168
122.0	169
119.4	170
116.9	171
114.5	172
112.1	173
109.8	174
107.5	175
105.3	176
103.2	177
101.1	178
99.0	179
97.0	180
95.1	181
93.2	182
91.3	183
89.5	184
87.7	185
86.0	186
84.3	187
82.7	188
81.1	189
79.5	190
78.0	191
76.5	192
75.0	193
73.6	194
72.2	195
70.8	196
69.5	197
68.2	198
66.9	199
65.7	200
64.4	201
63.3	202
62.1	203
61.0	204
59.9	205
58.8	206
57.7	207
56.7	208
55.7	209
54.7	210
53.7	211
52.7	212
51.8	213
50.9	214
50.0	215
49.1	216
48.3	217
47.4	218
46.6	219
45.8	220
45.0	221
44.3	222
43.5	223
42.8	224
42.1	225
41.4	226
40.7	227
40.0	228
39.3	229
38.7	230
38.0	231
37.4	232
36.8	233
36.2	234
35.6	235
35.1	236
34.5	237
33.9	238
33.4	239
32.9	240
32.3	241
31.8	242
31.3	243
30.8	244
30.4	245
29.9	246
29.4	247
29.0	248
28.5	249
28.1	250

Tabla 7: Resistencia de termistor de 10kΩ