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| activities:guides:wvcoaxlab 2013/07/15 09:13 | activities:guides:wvcoaxlab 2013/08/26 14:04 current | ||
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| * {{activities:guides:wv_equipmentlist.doc|Equipment}} list | * {{activities:guides:wv_equipmentlist.doc|Equipment}} list | ||
| * A {{activities:content:handouts:wvcoaxlabhand.doc|handout}} for each student | * A {{activities:content:handouts:wvcoaxlabhand.doc|handout}} for each student | ||
| - | * A {{activities:content:handouts:wvcoaxlabhand.doc|handout}} for each student regarding the follow-up activities | + | * A {{activities:guides:wvcoaxlabassignment.docx|follow-up handout (docx version)}}{{activities:guides:wvcoaxlabassignment.pdf|follow-up handout (pdf version)}} for each student regarding the follow-up activities |
| * Here's a template to show typical {{activities:guides:copy_of_ph424_typresults.coaxlabxlsx.xlsx|results}}. | * Here's a template to show typical {{activities:guides:copy_of_ph424_typresults.coaxlabxlsx.xlsx|results}}. | ||
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| - Change the incident pulse to a sinusoid whose wavelength is of order the cable length. Watch the waveform at the cable ends as the terminating resistor is varied. At an appropriate frequency/wavelength, "standing waves" should in principle be generated. On fact, there is never a true node because the damping in the cable causes attenuation, so there is no superposition of left-and right-moving waves of //equal// amplitude. However, the amplitude of the reflected wave undergoes oscillations as the terminating impedance is steadily increased. This makes a nice project for advanced students or if the course is also offered at a 500-level, as ours is. | - Change the incident pulse to a sinusoid whose wavelength is of order the cable length. Watch the waveform at the cable ends as the terminating resistor is varied. At an appropriate frequency/wavelength, "standing waves" should in principle be generated. On fact, there is never a true node because the damping in the cable causes attenuation, so there is no superposition of left-and right-moving waves of //equal// amplitude. However, the amplitude of the reflected wave undergoes oscillations as the terminating impedance is steadily increased. This makes a nice project for advanced students or if the course is also offered at a 500-level, as ours is. | ||
| - Model the experiments in Maple/Mathematica. | - Model the experiments in Maple/Mathematica. | ||
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