Temperature Measurement with NTC Thermistors

Philip Kane @ jameco.com discuss about how to measure temperature with NTC thermistors. He writes:

Thermistors (thermal resistors) are temperature dependent variable resistors. There are two types of thermistors, Positive Temperature Coefficient (PTC) and Negative Temperature Coefficient (NTC). When the temperature increases, PTC thermistor resistance will increase and NTC thermistor resistance will decrease. They exhibit the opposite response when the temperature decreases.

Temperature Measurement with NTC Thermistors – [Link]