Permittivity and Permeability of Materials Obstacle Course: Difference between revisions
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=== Reading === | === 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 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). | # 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). Pay particular attention to the permittivity (<math>\epsilon</math>) / capacitance and permeability (<math>\mu</math>) / inductance associations. | ||
=== Permittivity of a Lossless Material From a Capacitance Measurement === | === Permittivity of a Lossless Material From a Capacitance Measurement === | ||
Revision as of 20:56, 16 May 2018
PAGE UNDER CONSTRUCTION
Permanent Materials
- 6061 3/8" Al rod stock
- Teflon
- Glass microscope slide
- HP Signal Generator (DC-1 GHz)
- Oscilloscope (at least 1GHz bandwidth)
- Miscellaneous electrical components
Materials to Borrow When Necessary
- Milling machine
- Lathe
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). Pay particular attention to the permittivity (Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \epsilon} ) / capacitance and permeability () / inductance associations.
Permittivity of a Lossless Material From a Capacitance Measurement
- 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..
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle C = \epsilon_r \epsilon_0 \frac{A}{d}} .