I'm trained as a chemist. In grad school, I spent my first two years building interfaces and writing software for computer control of instrumention. Yes, that was a long time ago. In my first real job, I got involved in thermal analysis and helped modernize calorimeters. Fast forward over twenty years and I was building mass spectrometers for measuring airborne pollutants when my boss found out that I'd worked in thermal analysis. So he gave me a pet project of his where he'd been trying to cool a detector cell with TECs. The problem was that the aircraft did not have "air conditioning" until it got up to ~14,000' and because of that, the cooling of the hot side of the TECs was a problem at startup and also when dropping low to do altitude profiles. The detector needed very stable temps. I finally bought a small industrial air conditioner to cool the hot side and the only down side to that was jealousy from other teams on the airplane.




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