system
February 15, 2014, 12:00pm
1
I am trying to record temperature using a thermistor but I am getting a 5°C fluctuation for a non varying set temperature.
I have used a 10K Ohm Resistor, would changing this value help?
This is how I have set it up
knut_ny
February 15, 2014, 12:08pm
2
Choose R near NTCs R (raw reading ca 500 in room temp)
system
February 15, 2014, 12:16pm
3
Sorry for being a bit thick but what does NTC stand for?
knut_ny
February 15, 2014, 12:24pm
4
Negativ Temperatur Coefficient
You will find equations to calculate actual temp..
A thermistor is a semiconductor type of resistor whose resistance is strongly dependent on temperature, more so than in standard resistors. The word thermistor is a portmanteau of thermal and resistor.
Thermistors are divided based on their conduction model. Negative Temperature Coefficient (NTC) thermistors have less resistance at higher temperatures, while Positive Temperature Coefficient (PTC) thermistors have more resistance at higher temperatures.
NTC thermistor are widely used as inrush ...
Whats printed on that component .. / datasheet ?
be sure that you have a stable power supply, some vary up to 5%
You can check that with a DMM (Digital MultiMeter)