A thermistor is a solid-state device whose resistance varies greatly with temperature. Its temperature dependence is given
Question:
A thermistor is a solid-state device whose resistance varies greatly with temperature. Its temperature dependence is given approximately by R = R0eB/T, where R is in ohms (Ω), T is in kelvins, and R0 and B are constants that can be determined by measuring R at calibration points such as the ice point and the steam point.
(a) If R = 7360 Ω at the ice point and 153 Ω at the steam point, find R0 and B.
(b) What is the resistance of the thermistor at t = 98.6oF?
(c) What is the rate of change of the resistance with temperature (dR/dT) at the ice point and the steam point?
(d) At which temperature is the thermistor most sensitive?
Step by Step Answer:
a We find B from R 273 R 373 7360153 481 e B273 B373 481 B 394 10 3 K Ev...View the full answer
Fundamentals of Ethics for Scientists and Engineers
ISBN: 978-0195134889
1st Edition
Authors: Edmund G. Seebauer, Robert L. Barry
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