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Entry  Fri Oct 16 03:16:50 2009, rana, rob, Summary, LSC, funny timing setup on the LSC 1X3_1.JPG
    Reply  Fri Oct 16 13:25:18 2009, Koji, Summary, LSC, funny timing setup on the LSC 
    Reply  Mon Oct 19 14:48:15 2009, rana, rob, Summary, Electronics, piezo jena measuring box PA160153.JPGPA160151.JPG
Message ID: 2118     Entry time: Mon Oct 19 14:48:15 2009     In reply to: 2101
Author: rana, rob 
Type: Summary 
Category: Electronics 
Subject: piezo jena measuring box 
Attached is the schematic of the Piezo Jena driver measuring box made in a Pomona box:
                2.2 uF
In ----o-------- | | --------o-------- Out
       |                     |
       _                     |
       _  1uF                R  7.5 kOhms
       |                     |
       |                     |
      GND                   GND
The 1 uF cap is there to simulate the piezo and the 2.2 uF and 7.5k resistor ac couple the signal for the spectrum analyzer. They give a ~10 Hz corner frequency.
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