Impedance analyzer, three terminal impedance measurement

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Discussion Overview

The discussion revolves around measurement techniques in impedance analyzers, specifically focusing on two, three, and four terminal impedance measurements, as well as calculating resonance frequency based on component values. The context is homework-related, with participants seeking assistance to understand these concepts in preparation for an upcoming test.

Discussion Character

  • Homework-related
  • Technical explanation

Main Points Raised

  • Participants inquire about the measurement techniques used in impedance analyzers and request diagrams for two, three, and four terminal impedance measurements.
  • One participant expresses difficulty in finding sources to answer their questions and emphasizes the urgency due to an impending test.
  • Another participant suggests that the Wikipedia page on four-terminal impedance measurement could be beneficial, noting that two-terminal measurement is a simplification of four-terminal measurement.
  • A third participant provides links to additional resources that may assist in understanding the topic further.
  • A later reply indicates that the provided links were helpful, leading to the participant being able to answer their questions.

Areas of Agreement / Disagreement

Participants generally agree on the usefulness of the provided resources, but there is no consensus on the specifics of three-terminal impedance measurement, as one participant admits unfamiliarity with that particular method.

Contextual Notes

Some participants express uncertainty about the three-terminal measurement technique, and the discussion reflects a reliance on external resources for clarification on the topics raised.

faen
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Homework Statement



5. What is measurement technique in impedance analyzers?
6. Draw the circuit of a two terminal impedance measurement.
7. Draw the circuit of a three terminal impedance measurement.
8. Draw the circuit of a four terminal impedance measurement.
9. How can you calculate the resonance frequency knowing values of the elements?

Homework Equations



I am given these webpages to study, but I've searched them for hours without identifying the answer.

http://en.wikipedia.org/wiki/Inductor
http://en.wikipedia.org/wiki/Capacitor
http://en.wikipedia.org/wiki/RLC_circuit

The Attempt at a Solution



I truly wish I could show a decent attempt of a solution, but the thing is that I can't even find any source answering these questions. Still I am in a desperate position to solve these questions, since I will have a test tomorrow and I can't fail a single one without failing the entire course. I've even tried to google the questions for hours without any success as well.. Thanks in advance to anybody who can help me out, I really appreciate it.
 
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faen said:

Homework Statement



5. What is measurement technique in impedance analyzers?
6. Draw the circuit of a two terminal impedance measurement.
7. Draw the circuit of a three terminal impedance measurement.
8. Draw the circuit of a four terminal impedance measurement.
9. How can you calculate the resonance frequency knowing values of the elements?

Homework Equations



I am given these webpages to study, but I've searched them for hours without identifying the answer.

http://en.wikipedia.org/wiki/Inductor
http://en.wikipedia.org/wiki/Capacitor
http://en.wikipedia.org/wiki/RLC_circuit

The Attempt at a Solution



I truly wish I could show a decent attempt of a solution, but the thing is that I can't even find any source answering these questions. Still I am in a desperate position to solve these questions, since I will have a test tomorrow and I can't fail a single one without failing the entire course. I've even tried to google the questions for hours without any success as well.. Thanks in advance to anybody who can help me out, I really appreciate it.

The wikipedia page on 4-terminal impedance measurement should help:

http://en.wikipedia.org/wiki/Four-terminal_sensing

I'm not familiar with a 3-terminal measurement, but 2-terminal measurement is a simplification of the 4-terminal measurement described in the wikipedia article.

And after reading the 4-terminal article, you should be able to answer question #5 now...
 
Thanks a lot guys, all the links were helpful to me! I could answer the questions now :)
 

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