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  Coating Ring-down Measurement Lab elog  Not logged in ELOG logo
Message ID: 112     Entry time: Thu Sep 15 08:27:57 2016
Author: Gabriele 
Type: General 
Category: General 
Subject: New band-limited excitation 

Same as in elog #110, but now the amplitude is proportional to frequency squared:

ampl = (x/x[0])**2
xx = multi_band_noise(bands, ampl, T=20, fs=65536)
n = AWGNoiseStream(4e-4*xx, channel='X3:CR1-ESD_EXC', rate=65536)
n.start()

Noise stopped at 8:27:40am LT.

Turbo pump off and spinning down at 9:37am LT. Pumo completely stopped at 11:15am LT

Openend the chamber and removed the sample at ~11:20am LT

ELOG V3.1.3-