Hi all!
I would like to build a thermopile (built in thermistor) circuit which can measure mid infrared spectrum in uV range. I found the following circuit:
http://www.analog.com/en/content/using_thermopile_sensor_in_ir_digital_thermometers/fca.html
I have AD8538 and I have a thermopile, so I have everything. Unfortunately I don't know how can I calibrate the thermistor circuit for compensation the ambient temperature.
Could anyone help me with any information? Thanks.