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Unread 12-27-2005, 12:15 PM   #1
BillA
CoolingWorks Tech Guy
Formerly "Unregistered"
 
Join Date: Dec 2000
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Posts: 4,440
Default sensor calibration

you read a temp, is it 'real' ?
what is the purpose of calibration ?
- many certs state "in spec", but this info while welcome is not useful
what is needed is a calibration curve indicating the sensor/instrument's deviation

the first graph is an air cal of 2 RTDs and 2 TCs, the second a liquid cal of 3 RTDs;
note that the yellow RTD is the same in both

(this was the delay Joe)
Attached Images
File Type: gif air cal.gif (21.8 KB, 48 views)
File Type: gif liquid cal.gif (22.4 KB, 39 views)
File Type: jpg air cal.jpg (94.1 KB, 47 views)
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