A
Hi,
I'm at the final edge of completing my thesis project entitled 'Construction and Performance test of a Temperature Controller for an Electric Heater'.
I've constructed the cicuit and built the logic in Arduino so that the system can control a heater within a temperature range of 750-800 dgr C. What I'm facing problem with is the sensor that I'm using -- a K type thermocouple sensor. It gives 0.1mV for every 6 dgr C approximately which is quite low. So, I've amplified it with an amplifier circuit. This finally resulted in a huge fluctuation. For example it's showing a range from 550 dgr C to 570 dgr C for actual 560 dgr C. I don't know how to stop or minimize this fluctuation without changing the sensor. I will really appreciate any kind of help..
Regards
I'm at the final edge of completing my thesis project entitled 'Construction and Performance test of a Temperature Controller for an Electric Heater'.
I've constructed the cicuit and built the logic in Arduino so that the system can control a heater within a temperature range of 750-800 dgr C. What I'm facing problem with is the sensor that I'm using -- a K type thermocouple sensor. It gives 0.1mV for every 6 dgr C approximately which is quite low. So, I've amplified it with an amplifier circuit. This finally resulted in a huge fluctuation. For example it's showing a range from 550 dgr C to 570 dgr C for actual 560 dgr C. I don't know how to stop or minimize this fluctuation without changing the sensor. I will really appreciate any kind of help..
Regards