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Thermocouple
A thermocouple is a sensor for measuring temperature. It consists of two dissimilar metals, joined together at one end. When the junction of the two metals is heated or cooled a voltage is produced that can be correlated back to the temperature. The thermocouple alloys are commonly available as wire.
 

 Resistance Bulb

http://www.cema-temp.com/eng/html/pdt_view.asp?sn=582


Extension Wire

http://www.cema-temp.com/eng/html/pdt_view.asp?sn=583

 


 

 

 

Thermoelectric Voltage in Millivolts
UNIT:mv

Temp
(℃)
B
R
S
K
E
J
T
Pt70-Rh30
Pt94-Rh6
Pt87-Rh13
Pt
Pt90-Rh10
Pt
Chromel
Alumel
Chromel
Constantan
Iron
Constantan
Copper
Constantan

-200
-100
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800

-
-
0
0.033
0.178
0.431
0.786
1.241
1.791
2.430
3.154
3.957
4.833
5.777
6.783
7.854
8.952
10.094
11.257
13.585
13.585

-
-
00.647
1.468
2.400
3.407
4.471
5.582
6.741
7.949
9.203
10.503
11.846
13.224
14.624
16.035
17.445
18.842
20.215

-
-
00.645
1.440
2.323
3.260
4.234
5.237
6.274
7.345
8.448
9.585
10.754
11.947
13.155
14.368
15.576
16.771
17.942

-5.581
-3.533
0
4.095
8.137
12.207
16.395
20.640
24.902
29.128
33.277
37.325
41.269
45.108
48.828
52.398

-8.824
-5.2370
6.317
13.419
21.033
28.943
36.999
45.085
53.110
61.022
68.783
76.358

-7.890
-4.632
0
5.268
10.777
16.325
21.846
27.388
33.096
39.130
45.498
51.875
57.942

-5.603
-3.378
0
4.277
9.286
14.086
20.869

 

 

 

 


 

 

File
Name Size Time Download
Thermocouple Catalog 3646KB 2010/2/11 PM 01:43:12 Download

 
 
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