NAOJ GW Elog Logbook 3.2
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MatteoLeonardi - 01:00, Sunday 30 August 2020 (2188)
Modification of QPD demodulation box
[Matteo, Eleonora]
On Friday I modified one of the two QPD demod box adding high pass filter (SHP-50+) and amplifier (ZKL-1R5+) for each QPD segment channel (picture1). See PDF pag.2 for current components of the demodbox. The second QPD demodbox is not yet cabled (picture2).
On Friday I modified one of the two QPD demod box adding high pass filter (SHP-50+) and amplifier (ZKL-1R5+) for each QPD segment channel (picture1). See PDF pag.2 for current components of the demodbox. The second QPD demodbox is not yet cabled (picture2).
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Yesterday I finalized also the second QPD demodbox.