I have a situation in which I need to use a thermal camera in a rain enviroment, the camera is mounted on a gymbal and can rotate 360 degrees, so I tought it may be an option to build a dome in order to separate it from the rain.
I tested the absorption of a couple materials without much success. Glass, polycarbonate, and acrylic do not allow IR.
I tried with some bags that I beleive may be made out of nylon with sucess, but this material may not be rigid enough to build a dome.
What do you suggest? Perfect thermal values are not necesary in the proyect, I just need to be able to identify people.
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Intrinsic silicon transmits infrared. It may be expensive, though, when obtained from a supplier.
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$\begingroup$ Not available as a dome. A piece of a wafer might be suitable as a window, I can test that tomorrow. $\endgroup$– user137289Feb 19, 2019 at 19:09
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$\begingroup$ Pieter, were you able to test it? A wafer used as a window may be a possible solution. $\endgroup$ Feb 22, 2019 at 16:26
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$\begingroup$ I tested it a few years ago. The camera showed my face straight through a wafer. $\endgroup$– my2ctsFeb 22, 2019 at 18:23