Difference between revisions of "Lab 5 TF EIM"

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[[File:TF_EIM_Lab5_RLC.png| 200 px]]
 
[[File:TF_EIM_Lab5_RLC.png| 200 px]]
 
#Design and construct a '''series''' LRC circuit.
 
#Design and construct a '''series''' LRC circuit.
#Measure and Graph the Gain as a function of the oscillating input voltage frequency. (20 pnts)
+
#Measure and Graph the Gain as a function of the oscillating input voltage frequency. (25 pnts)
 
==Questions==
 
==Questions==
 
#What is the current <math>I</math> at resonance? (5 pnts)
 
#What is the current <math>I</math> at resonance? (5 pnts)

Revision as of 04:35, 2 February 2011

LC Resonance circuits

The LC cicuit

TF EIM Lab5 LC.png

  1. Design a parallel LC resonant circuit with a resonant frequency between 50-200 kHz. use [math]L[/math] = 10 - 100 [math]\mu H[/math], R = 1k [math]\Omega[/math] (Note [math]R_L[/math] is the inherent resistance of the inductor).
  2. Construct the LC circuit using a non-polar capacitor
  3. Measure the Gain [math]\equiv \frac{V_{out}}{V_{in}}[/math] as a function of frequency when r=0. (20 pnts)
  4. Measure the Gain when an external resistance (r) approximately equals to the inherent resistance of the rf choke [math]r \approx R_{L}[/math]. (20 pnts)
  5. Compare the measured and theoretical values of the resonance frequency ([math]\omega_{L}[/math]) (10 pnts)

Questions

  1. Determine the value of [math]R[/math] needed to have [math]V_{out} \approx V_{in}[/math] at resonance. (5 pnts)

The RLC cicuit

TF EIM Lab5 RLC.png

  1. Design and construct a series LRC circuit.
  2. Measure and Graph the Gain as a function of the oscillating input voltage frequency. (25 pnts)

Questions

  1. What is the current [math]I[/math] at resonance? (5 pnts)
  2. What is the current as [math]\nu \rightarrow \infty[/math]? (5 pnts)


Forest_Electronic_Instrumentation_and_Measurement