What does "thermistor" mean?

• The term "Thermistors", derived from the term thermally sensitive resistors, are a very accurate and cost- effective sensor for measuring temperature. 

• Thermistors are available in two types: those with Negative Temperature Coefficients (NTC thermistors) and those with Positive Temperature Coefficients (PTC thermistors).

•  NTC thermistors’ resistance decreases as their temperature increases, while PTC thermistors’ resistance increases as their temperature increases. Only NTC thermistors are commonly used in temperature measurement. 

Fig: Thermistor

•  তাপমাত্রা বাড়ার সাথে সাথে সেন্সরের দুই terminal এর মধ্যবর্তী  resistance বাড়ে কিংবা  কমে।
• NTC thermistors এর ক্ষেত্রে resistance কমে
• NPC thermistors এর ক্ষেত্রে resistance বাড়ে