NI ELVIS III Impedance Analyzer

[Archusmechanicus]

Hello,

I am an engineering student.  We were advised that we could use the NI ELVIS II or NI ELVIS III, I have an NI ELVIS III, but all the instructions are written for an NI ELVIS II.  My question is: is there a way to run an impedance analysis like you would see in the ELVISmx Impedance Analyzer for the NI ELVIS II via the IV analyzer (Current-Voltage analyzer) or other tool.  I have searched through the manual and I was unable to find information regarding my question.  Any direction on this would be greatly appreciated.

This is the NI ELVIS II Impedance Analyzer tool for reference.

[dep1193]

To measure impedance on NI ELVIS III, you can use the built-in function generator and the oscilloscope features of the NI ELVIS III software. Here's a step-by-step guide:

1. Connect the device or component whose impedance you want to measure to the NI ELVIS III.

   • For example, if you want to measure the impedance of a resistor, connect it to the appropriate terminal on the NI ELVIS III.

2. Launch the NI ELVIS III software on your computer.

3. Configure the function generator:

   • In the software, go to the "Instrument Launcher" tab.
   • Select the "Function Generator" instrument.
   • Set the function generator to generate a known AC signal, such as a sine wave, at a specific frequency.
   • Adjust the output amplitude and frequency settings as desired.

4. Connect the function generator output to the device under test (DUT):

   • Use a BNC cable to connect the function generator output (usually labeled "FG") on the NI ELVIS III to the input of the DUT.

5. Configure the oscilloscope:

   • In the software, go to the "Instrument Launcher" tab.
   • Select the "Oscilloscope" instrument.
   • Set up the oscilloscope to measure the voltage across the DUT.
     • Connect the DUT output to one of the oscilloscope channels using a BNC cable.
     • Adjust the voltage range and timebase settings on the oscilloscope as needed.

6. Capture the voltage waveform:

   • Start the function generator output to generate the AC signal.
   • Capture the voltage waveform across the DUT using the oscilloscope.
   • Make sure the waveform is stable and representative of the AC signal being applied.

7. Analyze the waveform:

   • Measure the peak-to-peak voltage of the waveform using the oscilloscope's measurement features.
   • Note down the frequency of the AC signal generated by the function generator.

8. Calculate the impedance:

   • The impedance of the DUT can be calculated using Ohm's Law and the measured voltage and current values.
   • Impedance (Z) = Voltage (V) / Current (I)

Note: The specific steps may vary depending on the software version or updates provided by National Instruments. It's always a good idea to consult the documentation or user manual for the NI ELVIS III and the software for detailed instructions