Quote:
Originally Posted by jackbauer
I know this is probably a super long shot but does anyone have any information on the temperature sensors used in the large rear tesla drive unit? I have measured room temperature resistance and observed the resistance drops with increasing temperature but that's it. My plan is to start running coolant through the motor / inverter and plot a few points of resistance versus temperature. Any help much appreciated  |
Sorry - no direct knowledge here!
Much of industry just uses 100 ohm platinum RTDs. Based on the required temperatures (-40C -> 110C or so) it is the easiest. Do you have 2-wires or 3?
The other common sensor based on the temperature range is J type thermocouples. Those are different - they generate a small voltage difference from dissimilar metals welded together. You almost need to bring the signal into an op-amp to measure it.