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Entry  Fri Dec 6 17:49:46 2019, rana, Summary, PEM, Jump test of seismometers: EX needs recentering Seismometers.pdfsrc.tgz
    Reply  Sun Dec 8 20:15:41 2019, rana, Summary, PEM, Jump test of seismometers: EX needs recentering seis_all_191208.pdf
       Reply  Mon Dec 9 13:08:24 2019, Yehonathan, Summary, PEM, Jump test of seismometers: EX needs recentering seis_191208.pdf
Message ID: 15082     Entry time: Fri Dec 6 17:49:46 2019     Reply to this: 15083
Author: rana 
Type: Summary 
Category: PEM 
Subject: Jump test of seismometers: EX needs recentering 

Yehonathan, please center the EX seismometer.

The attached PDF shows the seismometer signals (I'm assuming that they're already calibrated into microns/s) during the lab tour for the art students on 11/1. The big spike which I've zoomed in on shows the time when we were in the control room and we all jumped up at the same time. There were approximately 15 students each with a mass of ~50-70 kg. I estimate that out landing times were all sync'd to within ~0.1 s.

Attachment 1: Seismometers.pdf  153 kB  | Hide | Hide all
Seismometers.pdf
Attachment 2: src.tgz  2 kB
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