067-0502-01: Difference between revisions

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The Tektronix 067-0502-01 is a instrument that can be used to produce a reference rectangle
The '''Tektronix 067-0502-01''' is an instrument that can be used to produce a reference rectangle
voltage or current waveform and/or to compare an external unknown input with an internal or  
voltage or current waveform and/or to compare an external unknown input with an internal or  
external reference.  The comparison is performed using an [[Airpax A175]] chopper to switch
external reference.  The comparison is performed using an [[Airpax A175]] chopper to switch
between the two voltages that are being compared.  The resulting output is a rectangular
between the two voltages that are being compared.  The resulting output is a rectangular
waveform with amplitude equal to the difference of two voltages.  It can be  
waveform with amplitude equal to the difference of two voltages.  It can be  
amplified and viewed on an oscilloscope.  It is a well known and trusted technique,
amplified and viewed on an oscilloscope.   
the use of a chopper to make precise DC measurements using instruments that are sensitive
to AC, but not capable of drift-free DC performance.   


The chopping
The use of a chopper to make precise DC measurements is a well known and trusted technique,
technique can be used for calibration, comparing a device under test with a reference.
using instruments that are sensitive to AC, but not capable of drift-free DC performance. 
 
The chopping technique can be used for calibration, comparing a device under test with a reference.
In this case, the result of chopping is viewed on an oscilloscope oscilloscope, possibly
In this case, the result of chopping is viewed on an oscilloscope oscilloscope, possibly
with a preamplifier between the output of the chopper and the input of the oscilloscope.
with a preamplifier between the output of the chopper and the input of the oscilloscope.
The operator adjusts the device under test to minimize the amplitude observed on the
The operator adjusts the device under test to minimize the amplitude observed on the
oscilloscope.  The vertical sensitivity, DC accuracy, and DC drift performance of the  
oscilloscope.  The vertical sensitivity, DC accuracy, and DC drift performance of the  
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which is typically around 10%, (e.g., +/- 0.01% or +/- 0.3%).
which is typically around 10%, (e.g., +/- 0.01% or +/- 0.3%).


See the [[067-0502-00]] page for a comparison of the -00 and -00 models.
See the [[067-0502-00]] page for a comparison of the -00 and -01 models.
 
{{MissingSpecs}}
 
==Manuals==


* [http://w140.com/tek-067-0502-01.pdf Tektronix 067-0502-01 Manual (PDF)]
* [http://w140.com/tek-067-0502-01.pdf Tektronix 067-0502-01 Manual (PDF)]
==Pictures==


<gallery>
<gallery>
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