14 dicembre subwoofer loudpeaker in AHU room NEB. UTA off 1323508370 14 Dec 2021 09:12:32 UTC (14 Dec 2021 10:12:32 CET) 1323508669 14 Dec 2021 09:17:31 UTC (14 Dec 2021 10:17:31 CET) injections sweep 10-100Hz 30s sweep 10 - 100Hz, 30s, A=0.05 about 9:18 - 9:22 UTC 17 dicembre subwoofer in AHU room NEB, we added some soft damped material to seismically isolate the lourspeaker from the floor UTA off 1323791804 17 Dec 2021 15:56:26 UTC (17 Dec 2021 16:56:26 CET) fine quieto 1323792042 17 Dec 2021 16:00:24 UTC (17 Dec 2021 17:00:24 CET) sweep 10 - 100Hz, 30s, A=0.05 1323792214 17 Dec 2021 16:03:16 UTC (17 Dec 2021 17:03:16 CET) alziamo volume A=0.15 1323792311 17 Dec 2021 16:04:53 UTC (17 Dec 2021 17:04:53 CET) 1323792735 17 Dec 2021 16:11:57 UTC (17 Dec 2021 17:11:57 CET) colored 5-195.0.001 1323793108 17 Dec 2021 16:18:10 UTC (17 Dec 2021 17:18:10 CET) alziamo volume 0.005 1323793108 17 Dec 2021 16:18:10 UTC (17 Dec 2021 17:18:10 CET) cambio banda 5-100 Hz, A=0.005 1323793458 17 Dec 2021 16:24:00 UTC (17 Dec 2021 17:24:00 CET) cambio banda 5-90, A=0.01 1323793656 17 Dec 2021 16:27:18 UTC (17 Dec 2021 17:27:18 CET) 1323794233 17 Dec 2021 16:36:55 UTC (17 Dec 2021 17:36:55 CET) 16:47 UTC accelerometro UTA_BOX_ACC spostato su pipe acqua fredda UTA (UTA sempre spenta): forte vibrazione 48Hz 21 dicembre cassa (seismically isolated) inside the AHU fan box (door ajar) AHU off at 8:26 UTC white noise (same as last time) (banda 5-90, A=0.01) 1324111348 21 Dec 2021 08:42:10 UTC (21 Dec 2021 09:42:10 CET) 1324111659 21 Dec 2021 08:47:21 UTC (21 Dec 2021 09:47:21 CET) double level 0.02 1324111829 21 Dec 2021 08:50:11 UTC (21 Dec 2021 09:50:11 CET) 1324112129 21 Dec 2021 08:55:11 UTC (21 Dec 2021 09:55:11 CET) sweep, same setting as last time: sweep 10 - 100Hz, 30s, A=0.15 1324112376 21 Dec 2021 08:59:18 UTC (21 Dec 2021 09:59:18 CET) 1324112599 21 Dec 2021 09:03:01 UTC (21 Dec 2021 10:03:01 CET) slower sweep, 300s 1324112736 21 Dec 2021 09:05:18 UTC (21 Dec 2021 10:05:18 CET) 1324113415 21 Dec 2021 09:16:37 UTC (21 Dec 2021 10:16:37 CET) suono bombole 9:20 - 9:23 UTA back on around 9:27 UTC .... UTA set at 40Hz switched off and removed temporary sensors to allow installation works of damping panels on UTA box and SAS ducts