Measuring Temperature with Platinum
Wire
Platinum wire changes resistance in an almost linear fashion at high temperatures. You
should be able to measure the resistance of platinum wire and calibrate it to the following chart for a fairly
accurate temperature indication.
]
Following are the numbers that the chart above is based on:
|
MV
|
Temp F
|
Temp C
|
|
3
|
200
|
93.3
|
|
4
|
250
|
121.1
|
|
5
|
300
|
148.9
|
|
6
|
350
|
176.7
|
|
7
|
400
|
204.4
|
|
8
|
450
|
232.2
|
|
9
|
500
|
260.0
|
|
11
|
550
|
287.8
|
|
12
|
600
|
315.6
|
|
14
|
700
|
371.1
|
|
15
|
800
|
426.7
|
|
18
|
900
|
482.2
|
|
21
|
1000
|
537.8
|
|
23
|
1100
|
593.3
|
|
26
|
1200
|
648.9
|
|
28
|
1300
|
704.4
|
|
30
|
1400
|
760.0
|
|
32
|
1500
|
815.6
|
|
35
|
1600
|
871.1
|
|
37
|
1700
|
926.7
|
|
39
|
1800
|
982.2
|
|
41
|
1900
|
1037.8
|
|
43
|
2000
|
1093.3
|
|
45
|
2100
|
1148.9
|
|