I've been involving in finding methods to determine natural frequency of coils but like to propose a calorimeter using the concept of Blackbody radiation to capture radiation.
The image attached is a chamber with blackbody material covered inside. The DUT is sitting inside the chamber. Ice is being poured to outer layers next to blackbody material. Insulation is the outermost layer. A vent on top for proper drain operation. Water collector at the bottom to collect and calculate heat/energy amount being generated. Using latent heat of fusion, we can just measure the water amount instead of a temp probe. Blackbody absorbs radiation and convert most of radiation (hopefully) to heat. There are some dynamics to take ambient condition into account by calibrating the drain rate etc... but that's the fine details.
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The image attached is a chamber with blackbody material covered inside. The DUT is sitting inside the chamber. Ice is being poured to outer layers next to blackbody material. Insulation is the outermost layer. A vent on top for proper drain operation. Water collector at the bottom to collect and calculate heat/energy amount being generated. Using latent heat of fusion, we can just measure the water amount instead of a temp probe. Blackbody absorbs radiation and convert most of radiation (hopefully) to heat. There are some dynamics to take ambient condition into account by calibrating the drain rate etc... but that's the fine details.
ImageShack® - Online Photo and Video Hosting
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