RLC Circuits and Build an Inductor


EE Science II Laboratory #7

RLC Circuits and Build an Inductor

You will build an inductor and determine its inductance by using it in an RLC circuit. RLC circuits are commonly used in oscillator design, tuning and filter circuits. These circuits exhibit resonance at a certain frequency making them ideal for applications that desire frequency selectivity. You will use this property to measure the inductance.

Let us approach this experiment as a problem –

The Problem Statement:

How will you construct an inductor and measure its inductance using an oscilloscope?

Solution Outline:

  1. Break problem into smaller steps The problem has two main questions:
    a) Build an inductor
    b) Measure the inductance with an oscilloscope – we will use an RLC circuit
  2. What you need to find out
    1. For (1.a), we will need to identify / review the constructional features of an inductor. A simple inductor can be constructed by winding a wire around a core of some sort. Which material would we use for the core? The material should be chosen such that the inductor has sufficient inductance. It should be easy to handle – should have a known permeability and it should be easy to wind a wire around it.
    2. For (1.b), we will need to build out a circuit – with known circuit elements, and characterize the response. In effect we will use the unknown inductor for an application, and based on our knowledge of how RLC circuits should behave specifically its resonance frequency, calculate the inductance.
  3. How you will obtain the data a. Circuit elements – so use an oscilloscope, multimeter, etc — what other equipment will we need? b. We will need to find a way to measure resonance accurately –
  4. How you will validate the test setup a. Recreate the circuit with a known inductance and check
  5. How will you know if your answers are correct? a. Compare with theoretical expectation b. What are the sources of error?

so I want A post lab see what you need

1. see the summary to get idea

2. see the experment pdf and on page 10 you will see Laboratory Report 5 steps (this what should the post lab enclude)

3. see the tamplet to know how the post lab shold be formed and looks like.