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| 184_projects:f20_project_14 [2020/12/08 21:24] – cookkai3 | 184_projects:f20_project_14 [2020/12/10 21:49] (current) – dmcpadden |
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| They need your help designing the receiver coils in each of their products (mePhone, meWatch, and the meToothbrush). To be able to charge, all the products need an alternating induced voltage. For the mePhone, it requires a peak voltage of 4.7 V. The meWatch requires a peak voltage of 0.88 V. The meToothbrush requires a peak voltage of 3.2 V. | They need your help designing the receiver coils in each of their products (mePhone, meWatch, and the meToothbrush). To be able to charge, all the products need an alternating induced voltage. For the mePhone, it requires a peak voltage of 4.7 V. The meWatch requires a peak voltage of 0.88 V. The meToothbrush requires a peak voltage of 3.2 V. |
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| The OTC engineers have asked you to create a report that outlines your design for each of the receiver coils (size, shape, etc.), how the induction charger will work, and graphs of the current in the charging platform and receiver coils. Remember, a good solution includes explanations, diagrams, evaluations, and commentary in addition to your calculations. See the Project Write Up Rubric for more details. | The OTC engineers have asked you to create a report that outlines your design for each of the receiver coils (size, shape, etc.), how the induction charger will work, and graphs of the current in the charging platform and the induced voltage in the receiver coils. Remember, a good solution includes explanations, diagrams, evaluations, and commentary in addition to your calculations. See the Project Write Up Rubric for more details. |
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| <WRAP Info> | <WRAP Info> |
| * Calculate an induced voltage from a changing magnetic flux | * Calculate an induced voltage from a changing magnetic flux |
| </WRAP> | </WRAP> |
| /* | |
| ==== Project 14B: Sending signals ==== | ==== Project 14B: Sending signals ==== |
| You are able to use your successfully MacGyver'd metal detector to track what the EM-boar tigers have left behind and find your trapped team members. But it is not only your team members you find. It is the EM-boar tigers base of operations. More important than rescuing your team members you observed something in their lair that effects the whole of humanity and needs to be communicated immediately. You estimate there is about 1 hour and 50 minutes to figure out a way to send some sort of E&M signal out for rescue before the EM-boar tigers realize that you are planning an escape. (What will that signal be??? You decide.) Due to the sensitivity that EM-boar tigers have to E&M waves, you only have one chance to send the signal before they realize what is happening and close in on the team. You will need to make sure that the attempt will work. You have a small metal ball that can be charged up 1e-6 C without discharging in air. You've found a piston that can shake the ball a total distance of 2cm, but at nearly any frequency you need. Your team decides to create a model of the signal to determine how best to orient the setup, how much charge to dump on the ball, and how quickly to shake it. Your group has already started setting up the code. | You are able to use your successfully MacGyver'd metal detector to track what the EM-boar tigers have left behind and find your trapped team members. But it is not only your team members you find. It is the EM-boar tigers base of operations. More important than rescuing your team members you observed something in their lair that effects the whole of humanity and needs to be communicated immediately. You estimate there is about 1 hour and 50 minutes to figure out a way to send some sort of E&M signal out for rescue before the EM-boar tigers realize that you are planning an escape. (What will that signal be??? You decide.) Due to the sensitivity that EM-boar tigers have to E&M waves, you only have one chance to send the signal before they realize what is happening and close in on the team. You will need to make sure that the attempt will work. You have a small metal ball that can be charged up 1e-6 C without discharging in air. You've found a piston that can shake the ball a total distance of 2cm, but at nearly any frequency you need. Your team decides to create a model of the signal to determine how best to orient the setup, how much charge to dump on the ball, and how quickly to shake it. Your group has already started setting up the code. |
| * Explain the effect of changing a variable on your model of the electric and magnetic fields (i.e., what would you expect to change if you changed the magnitude or sign of the charge) | * Explain the effect of changing a variable on your model of the electric and magnetic fields (i.e., what would you expect to change if you changed the magnitude or sign of the charge) |
| </WRAP> | </WRAP> |
| */ | |
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