Reports until 16:35, Tuesday 25 April 2023
H1 PEM
filiberto.clara@LIGO.ORG - posted 16:35, Tuesday 25 April 2023 - last comment - 15:53, Thursday 27 April 2023(69014)
End Station Microphones

WP 11121

End Station microphones at both End Stations have been upgraded.

  1. Configuration of DC power supplies modified. New microphones only require 5V
  2. Field power cables re-terminted changed from a 3 pin LEMO to CPC
  3. BNC cables pulled/terminated from power conditioning box to microphones

Plan is to start upgrade of microphones in Corner Station next week.

Comments related to this report
adrian.helmling-cornell@LIGO.ORG - 15:53, Thursday 27 April 2023 (69110)PEM

Settings for signal conditioning box for new mics:

CCLD - ON

Gain - 10x

Spectra of CS and EX ebay mics as sanity check.

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