Hi all,
I am wanting to use a thermistor as a crude flow meter and was wondering:
When they give the maximum power rating, is this due solely to damage caused by the thermistor self-heating to above the maximum temperature, i.e. if heat transfer from the thermistor was improved (eg with higher air flows or lower ambient temperatures) could you go above the max power rating?
I have seen a few de-rating curves where the rating is 100% until 25 degs and then linearly decreases to zero at the max temp. but I don't understand why you couldn't allow higher power at lower temperatures?
Any help appreciated
I am wanting to use a thermistor as a crude flow meter and was wondering:
When they give the maximum power rating, is this due solely to damage caused by the thermistor self-heating to above the maximum temperature, i.e. if heat transfer from the thermistor was improved (eg with higher air flows or lower ambient temperatures) could you go above the max power rating?
I have seen a few de-rating curves where the rating is 100% until 25 degs and then linearly decreases to zero at the max temp. but I don't understand why you couldn't allow higher power at lower temperatures?
Any help appreciated