FLASHLIGHT
On February 14th, also known as Valentines Day our class conducted a lovely experiment. We used an old flashlight to replicate a shift generator. By the way class I apologize for not updating this blog last week, I fell a bit behind on schoolwork. We connected the Flashlight to the robot and the robot to the computer. After we opened the Labview program on Microsoft, we began to prepare our experiment.
Our goal was simple:
- First we would measure how much electricity would be generated if we did not shake the flashlight.
- Secondly, my teammate and I would increase the number of shakes all within a 30 second window
- After each test we would open Microsoft excel
- Open the lab-view file name Test2.va
- We then calculated the Sum of Square by simply typing “=Sumsq(range of data)”
- Sum of square was essential to find the total variability in the set of numbers. Although excel did the formula out for us, if we were to calculate it on our own we would need the following formula:
- SS=E(y)^2=E(y-y)^2
- Sum of square was essential to find the total variability in the set of numbers. Although excel did the formula out for us, if we were to calculate it on our own we would need the following formula:
The Sum of Square is also needed to square the voltage. Each sum of square data plot represented 30 data points
We repeated the process five times; below is a graph of the data.
Our findings were very consistent, simply put the more we shook the flashlight the more voltage and electricity we generated. Just in case you can’t see the graph, you can view it better in the picture below.
(I took pictures of the experiment but could not figure out how to upload them)
The experiment overall went extremely well, my partner and I distributed the responsibilities evenly, and helped each other accomplish the daily task.