This week we recorded more electrical
readings such as voltage and current that the shake flashlight produced. This
week, however, the results we got were different. For some unfamiliar reason,
the amperage from the flash light maxed at 200 milliamps. Also, when voltage
reading was taken, the voltage kept spiking within the oscilloscope which was
unexpected. We’re still researching on these spikes and based on current
knowledge, we believe there is a short circuit somewhere in the wiring. For
now, the parts we currently have are: wiring, magnet, induction coil, casing,
springs, rechargeable AA NiMH batteries, switch, capacitors, and rectifier.
This week’s out of lab meeting was about constructing the circuitry and
bringing the components together. We intend on doing this in the week 6 lab
where we will construct a system which will use the current from the
coil-magnet induction system to charge the NiMH batteries. The part we are
still waiting on is the AA battery powered emergency cell phone charger that
will be used to power up a phone.
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| The Shake Flashlight disassembled into its components |
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| The magnet from the Shake Flashlight and the springs we intend to use in our cellphone charger |
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