Difference between revisions of "Permittivity and Permeability of Materials Obstacle Course"
(→Materials to Borrow When Necessary) |
(→Permittivity of a Lossless Material From a Capacitance Measurement) |
||
| Line 25: | Line 25: | ||
| − | + | ||
# 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 13:55, 16 May 2018
PAGE UNDER CONSTRUCTION
Contents
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).
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..
.
