Difference between revisions of "Permittivity and Permeability of Materials Obstacle Course"
(→Permittivity of a Lossless Material From a Capacitance Measurement) |
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== Activities == | == Activities == | ||
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| + | === Reading === | ||
| + | # Read the Wikipedia articles on [https://en.wikipedia.org/wiki/Permittivity permittivity] and [https://en.wikipedia.org/wiki/Permeability_(electromagnetism) permeability]. With the help of the instructor or TA try to achieve a physical understanding of just what the permittivity and permeability mean in a bulk material. | ||
| + | # Read the first three sections of [[Media:Measuring_the_Permittivity_and_Permeability_of_Lossy_Materials_-_Solids,_Liquids,_Metals,_Building_Materials_and_Negative-Index_Materials_.pdf |this paper]] (pages 1-27). | ||
=== Permittivity of a Lossless Material From a Capacitance Measurement === | === Permittivity of a Lossless Material From a Capacitance Measurement === | ||
| + | |||
| + | Pay particular attention to the permittivity (<math>\epsilon</math>) / capacitance and permeability (<math>\mu</math>) / inductance associations. | ||
# Place three samples (air, Teflon, glass) between the aligned and polished ends of two 3/8" diameter, 1/2" lengths of 6061 Al rods. Measure the capacitances and from the known surface area <math>A</math> and spacing <math>d</math> determine the material's relative permittivity.. <br> | # Place three samples (air, Teflon, glass) between the aligned and polished ends of two 3/8" diameter, 1/2" lengths of 6061 Al rods. Measure the capacitances and from the known surface area <math>A</math> and spacing <math>d</math> determine the material's relative permittivity.. <br> | ||
<math>C = \epsilon_r \epsilon_0 \frac{A}{d}</math>. | <math>C = \epsilon_r \epsilon_0 \frac{A}{d}</math>. | ||
Revision as of 12:34, 16 May 2018
PAGE UNDER CONSTRUCTION
Contents
Permanent Materials
- 6061 3/8" Al rod stock
- Teflon
- Glass microscope slide
Materials to Borrow When Necessary
Activities
Reading
- Read the Wikipedia articles on permittivity and permeability. With the help of the instructor or TA try to achieve a physical understanding of just what the permittivity and permeability mean in a bulk material.
- Read the first three sections of this paper (pages 1-27).
Permittivity of a Lossless Material From a Capacitance Measurement
Pay particular attention to the permittivity () / capacitance and permeability () / inductance associations.
- Place three samples (air, Teflon, glass) between the aligned and polished ends of two 3/8" diameter, 1/2" lengths of 6061 Al rods. Measure the capacitances and from the known surface area and spacing determine the material's relative permittivity..
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