Thermistors calculation of base resistance

AI Thread Summary
The discussion focuses on calculating the base resistance of a thermistor using the equation Y=1.54e^-0.059x, where Y represents resistance and x represents temperature. Participants explore how to determine the thermistor's resistance at boiling water temperature, with a noted value of 0.08 ohms at 100°C. There is confusion regarding the variables, with suggestions that resistance and temperature may be misidentified. The importance of accurate measurements and understanding units is emphasized, particularly given the low resistance value. Overall, the conversation highlights the need for clarity in the variables used in thermistor calculations.
physocs1
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Using the regression eqn. Find the base resistance of the thermistor.
Find the temp. Of the boiling water using this eqn.

Y=1.54e^-0.059x

How do I go about solving this problem
 
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Is this homework?

Plot the equation for temperatures from 0 to 100°C and study it's shape.

What is meant by the base resistance of the thermistor?
Is Y the resistance?
Is x the temperature?
What was the thermistor resistance when in the boiling water?

Can you put the resistance into the equation?
 
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The resistance value of a thermistor at a specified temperature with negligible electrical power to avoid self heating. Usually base resistance will be defined at 25 °C.
Its a NTC looking shape
I think Y is resistance
X is temp.
Not sure

At 100C: R= 0.08

Could I plug in 25 C and solve for Y?? .
 
physocs1 said:
I think Y is resistance
X is temp.
Not sure
At 100C: R= 0.08
Could I plug in 25 C and solve for Y?? .
You need to find out for sure.
If x is resistance and y is temperature then you need to plug in the resistance to get the temperature.
R= 0.08 ohms is a very low resistance. It is so low that it would be very hard to measure accurately.
You cannot build a reliable answer if you cannot be sure of the numbers and the units.
 
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