40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log  Not logged in ELOG logo
Entry  Wed Aug 24 14:11:09 2016, Praful, Update, Electronics, Microphone Testing white_v_ambient.pngwhite_v_ambient.pdfwhite_v_ambient.pdf
    Reply  Fri Jan 20 17:12:37 2017, Steve, Update, PEM, EM172 mic is hooked up in the PSL EM172c.jpg
       Reply  Thu Feb 2 17:34:25 2017, rana, Update, PEM, EM172 mic is hooked up in the PSL MicFail.pdf
          Reply  Thu Feb 2 17:43:20 2017, gautam, Update, PEM, EM172 mic is hooked up in the PSL Mic_broken.png
Message ID: 12436     Entry time: Wed Aug 24 14:11:09 2016     Reply to this: 12744
Author: Praful 
Type: Update 
Category: Electronics 
Subject: Microphone Testing 

I added an EM172 to my soldered circuit and it seems to be working so far. I have taken a spectra using the EM172 in ambient noise in the control room as well as in white noise from Audacity. My computer's speakers are not very good so the white noise results aren't great but this was mainly to confirm that the microphone is actually working.

white_v_ambient.pdf

Attachment 1: white_v_ambient.png  89 kB  | Hide | Hide all
white_v_ambient.png
Attachment 2: white_v_ambient.pdf  444 kB  | Hide | Hide all
white_v_ambient.pdf
Attachment 3: white_v_ambient.pdf  444 kB  Uploaded Wed Aug 24 15:11:33 2016  | Hide | Hide all
white_v_ambient.pdf
ELOG V3.1.3-