ThermistorCalibration

From John Clarke Mills Project Wiki

(Difference between revisions)
Jump to: navigation, search
Current revision (04:58, 26 July 2006) (edit) (undo)
m
 
(2 intermediate revisions not shown.)
Line 1: Line 1:
-
Temperature sensors:
+
The temperature sensors were ordered from my local independent BMW parts dealer. OEM part number 62110788115. They are just the simple one wire-hookup type, the housing is the ground. They were very easy to calibrate actually. A lot easier than I thought. Just get yourself a known working thermometer and freeze and boil some water measuring the Ohm's at 3 three known intervals. Here are my results:
-
80 - .568
+
{|
 +
| <b>F</b>
 +
| <b>Ohms</b>
 +
|-
 +
|44
 +
|1.300
 +
|-
 +
|80
 +
|0.568
 +
|-
 +
|185
 +
|0.73
 +
|}
 +
 
 +
I then plugged them into my MegaSquirt and they all checked out. That simple.
 +
 
 +
[[Image: Thermistor calibaration.JPG]]

Current revision

The temperature sensors were ordered from my local independent BMW parts dealer. OEM part number 62110788115. They are just the simple one wire-hookup type, the housing is the ground. They were very easy to calibrate actually. A lot easier than I thought. Just get yourself a known working thermometer and freeze and boil some water measuring the Ohm's at 3 three known intervals. Here are my results:

F Ohms
44 1.300
80 0.568
185 0.73

I then plugged them into my MegaSquirt and they all checked out. That simple.

Image: Thermistor calibaration.JPG

Personal tools