Hi Ian,
I have built a test platform which consisted of TMP006 PCB board and transparent plastic box. The board was wrapped by plastic box. I did the calibration and posted the calibration result in another thread.
After calibration, S0 seemed to be 3.0E-14. So in new test case, 3.0E-14 was used as S0. I put also a cup of hot water on top of box, i.e. hot water was in front of TMP006. The cup was also made of plastic.
I observed a strange symptom. When the water grew colder from 70 degree to 40 degree, the calculation result grew bigger from 14 degree to 38 degree. What was wrong with this test case?
BRs,
Luo