资源描述
变化率为 0.385Ω/℃,0℃时电阻值为100Ω,关系是线性的。
假如现在温度是200度,那么PT100的电阻就是200×0.385+100=177Ω
计算公式:
PT100的电阻值=实际温度值×0.385+100Ω
PT100在0摄氏度的时候电阻值为100欧姆,然后温度每升高一度,电阻值增长0.385欧姆,具有良好的线性。
总的来说就是:变化率为 0.385Ω/℃
PT100电阻阻值和温度关系表
下表列出了PT100铂电阻的温度和阻值相应关系
温度
0
1
2
3
4
5
6
7
8
9
(℃)
电阻值(Ω)
-30
88.04
87.64
87.24
86.84
86.44
86.04
85.63
85.23
84.83
84.43
-20
92.04
91.64
91.24
90.84
90.44
90.04
89.64
89.24
88.84
88.44
-10
98.03
95.63
95.23
94.83
94.43
94.03
93.63
93.24
92.84
92.44
-0
100.00
99.60
99.21
98.81
98.41
98.01
97.62
97.22
96.82
96.42
0
100.00
100.40
100.79
101.19
101.59
101.98
102.38
102.78
103.17
103.57
10
103.96
104.36
104.75
105.15
105.54
105.94
106.33
106.73
107.12
107.52
20
107.91
108.31
108.70
109.10
109.49
109.88
110.28
110.67
111.07
111.46
30
111.85
112.25
112.64
113.03
113.43
113.82
114.21
114.60
115.00
115.39
40
115.78
116.17
116.57
116.96
117.35
117.74
118.13
118.52
118.91
119.31
50
119.70
120.09
120.48
120.87
121.26
121.65
122.04
122.43
122.82
123.21
60
123.60
123.99
124.38
124.77
125.16
125.55
125.94
126.33
126.72
127.10
70
127.49
127.88
128.27
128.66
129.05
129.44
129.82
130.21
130.60
130.99
80
131.37
131.76
132.15
132.54
132.92
133.31
133.70
134.08
134.47
134.88
90
135.24
135.63
136.02
136.40
136.79
137.17
137.56
137.94
138.32
138.72
100
139.10
139.49
139.87
140.26
140.64
141.02
141.41
141.79
142.18
142.66
110
142.95
143.33
143.71
144.10
144.48
144.86
145.25
145.63
146.01
146.40
120
146.78
147.16
147.55
147.93
148.31
148.69
149.07
149.46
149.84
150.22
130
150.60
150.98
151.37
151.75
152.13
152.51
152.89
153.27
153.65
154.03
140
154.41
154.79
155.17
155.55
155.93
156.31
156.69
157.07
157.45
157.83
150
158.21
158.59
158.97
159.35
159.73
160.11
160.49
160.86
161.25
161.62
160
162.00
162.38
152.76
133.13
163.51
163.89
164.27
164.64
165.0
165.40
170
165.78
166.16
166.53
136.91
167.28
167.65
168.03
168.41
168.7
169.10
180
169.54
169.91
170.29
170.57
171.04
171.42
171.79
172.17
172.5
172.92
190
173.29
173.67
174.04
174.41
174.79
175.16
175.54
175.91
176.2
176.66
200
177.03
177.40
177.78
178.15
178.52
178.90
179.27
179.64
180.0
180.39
210
180.76
181.13
181.51
131.88
182.25
182.62
182.99
183.36
183.7
184.11
220
184.48
184.85
185.22
135.59
185.96
186.33
185.70
187.07
187.4
187.81
230
188.18
188.55
188.92
139.29
189.66
190.03
190.40
190.77
191.1
191.51
240
191.88
192.24
192.61
132.98
193.35
193.72
194.09
194.45
194.8
195.19
250
195.56
195.92
196.29
136.66
197.03
197.39
197.76
198.13
198.5
198.86
260
199.23
199.50
199.90
200.33
200.69
201.06
201.42
201.79
202.1
202.52
270
202.89
203.25
203.62
203.98
204.35
204.71
205.08
205.44
205.8
206.11
280
206.53
206.90
207.26
207.63
207.99
208.35
208.72
209.08
209.4
209.81
290
210.17
210.53
210.89
211.26
211.62
211.98
212.34
212.71
213.0
213.43
300
213.79
214.15
214.51
214.88
215.24
215.60
215.96
216.32
216.6
217.04
310
217.40
217.76
218.12
218.49
218.85
219.21
219.57
219.93
220.2
220.64
320
221.00
221.36
221.72
222.08
222.44
222.80
223.16
223.52
223.8
224.23
330
224.59
224.95
225.31
225.67
226.02
226.38
226.74
227.10
227.46
227.81
340
228.17
228.53
228.88
229.24
229.60
229.95
230.31
230.67
231.02
231.38
350
231.73
232.09
232.45
232.80
233.16
233.51
233.87
234.22
234.5
234.93
温度
0
1
2
3
4
5
6
7
8
9
(℃)
电阻值(Ω)
-30
88.04
87.64
87.24
86.84
86.44
86.04
85.63
85.23
84.83
84.43
-20
92.04
91.64
91.24
90.84
90.44
90.04
89.64
89.24
88.84
88.44
-10
98.03
95.63
95.23
94.83
94.43
94.03
93.63
93.24
92.84
92.44
-0
100.00
99.60
99.21
98.81
98.41
98.01
97.62
97.22
96.82
96.42
0
100.00
100.40
100.79
101.19
101.59
101.98
102.38
102.78
103.17
103.57
10
103.96
104.36
104.75
105.15
105.54
105.94
106.33
106.73
107.12
107.52
20
107.91
108.31
108.70
109.10
109.49
109.88
110.28
110.67
111.07
111.46
30
111.85
112.25
112.64
113.03
113.43
113.82
114.21
114.60
115.00
115.39
40
115.78
116.17
116.57
116.96
117.35
117.74
118.13
118.52
118.91
119.31
50
119.70
120.09
120.48
120.87
121.26
121.65
122.04
122.43
122.82
123.21
60
123.60
123.99
124.38
124.77
125.16
125.55
125.94
126.33
126.72
127.10
70
127.49
127.88
128.27
128.66
129.05
129.44
129.82
130.21
130.60
130.99
80
131.37
131.76
132.15
132.54
132.92
133.31
133.70
134.08
134.47
134.88
90
135.24
135.63
136.02
136.40
136.79
137.17
137.56
137.94
138.32
138.72
100
139.10
139.49
139.87
140.26
140.64
141.02
141.41
141.79
142.18
142.66
110
142.95
143.33
143.71
144.10
144.48
144.86
145.25
145.63
146.01
146.40
120
146.78
147.16
147.55
147.93
148.31
148.69
149.07
149.46
149.84
150.22
130
150.60
150.98
151.37
151.75
152.13
152.51
152.89
153.27
153.65
154.03
140
154.41
154.79
155.17
155.55
155.93
156.31
156.69
157.07
157.45
157.83
150
158.21
158.59
158.97
159.35
159.73
160.11
160.49
160.86
161.25
161.62
160
162.00
162.38
152.76
133.13
163.51
163.89
164.27
164.64
165.0
165.40
170
165.78
166.16
166.53
136.91
167.28
167.65
168.03
168.41
168.7
169.10
180
169.54
169.91
170.29
170.57
171.04
171.42
171.79
172.17
172.5
172.92
190
173.29
173.67
174.04
174.41
174.79
175.16
175.54
175.91
176.2
176.66
200
177.03
177.40
177.78
178.15
178.52
178.90
179.27
179.64
180.0
180.39
210
180.76
181.13
181.51
131.88
182.25
182.62
182.99
183.36
183.7
184.11
220
184.48
184.85
185.22
135.59
185.96
186.33
185.70
187.07
187.4
187.81
230
188.18
188.55
188.92
139.29
189.66
190.03
190.40
190.77
191.1
191.51
240
191.88
192.24
192.61
132.98
193.35
193.72
194.09
194.45
194.8
195.19
250
195.56
195.92
196.29
136.66
197.03
197.39
197.76
198.13
198.5
198.86
260
199.23
199.50
199.90
200.33
200.69
201.06
201.42
201.79
202.1
202.52
270
202.89
203.25
203.62
203.98
204.35
204.71
205.08
205.44
205.8
206.11
280
206.53
206.90
207.26
207.63
207.99
208.35
208.72
209.08
209.4
209.81
290
210.17
210.53
210.89
211.26
211.62
211.98
212.34
212.71
213.0
213.43
300
213.79
214.15
214.51
214.88
215.24
215.60
215.96
216.32
216.6
217.04
310
217.40
217.76
218.12
218.49
218.85
219.21
219.57
219.93
220.2
220.64
320
221.00
221.36
221.72
222.08
222.44
222.80
223.16
223.52
223.8
224.23
330
224.59
224.95
225.31
225.67
226.02
226.38
226.74
227.10
227.46
227.81
340
228.17
228.53
228.88
229.24
229.60
229.95
230.31
230.67
231.02
231.38
350
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