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6 Comments

  1. How is ir heaters actually working?, they mostly only heat the material right?, not the air?, so you need to have an thermocouple attached to the pcb, or something?
    Or paint the drawer black, and attach the tc on the drawer?

  2. A lamp based device like this heats things according to their emissivity. A black body with a low melting point and a low emissivity object on the same board would be the best test of if the reflow is okay.

    http://snap.fnal.gov/crshield/crs-mech/emissivity-eoi.html

    As you can see if you were in vacuum you’d have a big problem, thankfully the air does heat up and help you do what you actually want. Still a nice black plastic header (often nylon) is a good object to put in for such a test in parallel with anything else.

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