Today I did pressure measurements in two LS80 etalons. The first was in the band at a pressure of 27-28 PSI, the second at a pressure of 25-26 PSI. Sensitivity to pressure change is not extreme. A change of up to 4-5 PSI can be detected by eye.
I am preparing a remote pressure control and this was the first step.
Absolute pressure in Lunt LS80 etalons.
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Absolute pressure in Lunt LS80 etalons.
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Re: Absolute pressure in Lunt LS80 etalons.
My next step. Pressure control for LS80 by ESP32.
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Re: Absolute pressure in Lunt LS80 etalons.
Love it!
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Re: Absolute pressure in Lunt LS80 etalons.
It will also have remote control via a WiFi server, so no cable will be needed. As soon as the sun comes out, I'll start testing the first prototype.
I do not look at the sky with the eyes of an astronomer, but of a person looking for the beauty of nature.