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university:tools:m2k:scopy:networkanalyzer [11 Apr 2019 13:17] – [Network Analyzer - Low Pass Filter Example] Antoniu Miclausuniversity:tools:m2k:scopy:networkanalyzer [11 Apr 2019 17:47] – [Network Analyzer - Low Pass Filter Example] Robin Getz
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 ===== Network Analyzer - Low Pass Filter Example ===== ===== Network Analyzer - Low Pass Filter Example =====
  
-In the following example we will show how to use the Network Analyzer to obtain the frequency response of a low pass filter circuit.+The following example we will show how to use the Network Analyzer to obtain the frequency response of a low pass filter circuit. When ever using the network analyzer, you need a stimulus/reference channel (always waveform output channel 1 and oscilloscope channel 1) and a measurement channel (always oscilloscope channel 2).
  
 Consider the circuit in the figure below: Consider the circuit in the figure below:
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 <WRAP centeralign>{{:university:tools:m2k:scopy:na_lpf.png|}}</WRAP> <WRAP centeralign>{{:university:tools:m2k:scopy:na_lpf.png|}}</WRAP>
  
-Oscilloscope Positive Channel 1 ('+1') is used as reference channel, connected at the input of the filter along with the Waveform Generator channel 1 ('W1').  +To characterize the filter we need an input/stimulus, and way to measure the response,  
-Oscilloscope Positive Channel 2 ('+2') is connected at the ouput of the filter.+  - the reference channel: 
 +    * the stimulus : Waveform Generator channel 1 ('W1')  
 +    * the reference channel measurement: Oscilloscope Positive Channel 1 ('+1') 
 +  - the response channel: 
 +    * the output of the filter : Oscilloscope Positive Channel 2 ('+2')
  
-The oscilloscope negative input channels are connected to ground.+Since everything in this example is ground referenced, the oscilloscope negative input channels are connected to ground.
  
 Breadboard connections for such a circuit are displayed below: Breadboard connections for such a circuit are displayed below:
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 {{:university:tools:m2k:scopy:na_lpf_plot.png|}} {{:university:tools:m2k:scopy:na_lpf_plot.png|}}
  
-The amplitude of the signal with frequency larger then the cutoff frequency imposed by the circuit are attenuated.+The signal's amplitude is attenuated for frequencies larger then the cutoff frequency.
  
 **Return to [[university:tools:m2k:scopy|Scopy Main Page]]** **Return to [[university:tools:m2k:scopy|Scopy Main Page]]**
university/tools/m2k/scopy/networkanalyzer.txt · Last modified: 07 Apr 2021 22:12 by Brandon Bushey

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