Lab 1 :
First day of lab our task was to put logos together to assemble a robot. It a was a bit tricky to do so since there were a lot of tiny little parts that looked the same to me. However, after assembling the robot we had the chance to actually run it by inserting the battery in the bottom of the device. Then we plugged it to the PC and we ran the Labview program to test it. Then on the second day we had to measure the circumference of the robot and it was 0.18 meters.
Circumference = π(diameter)
Then we were asked to measure the distance using the ruler and compare it with the Labview program in different trials by changing power and time 3 times. (9 total). As well as number of turns, velocity, and error percentage. in order to get percentage error we had to use this equation:
%Error= ((DistanceRuler- DistanceLabview)/((DistanceRuler+DistanceLabview)/2))*100
And the results were as shown:
Set#1
Time: 2 Seconds Power: 38
Trials# Trial 1 Trial2 Trial3
Distance(ruler) 0.28 0.278 0.281
Distance(Labview) 0.283 0.2775 0.2815
# of turns 1.5722 1.5416 1.5638
Velocity 0.1415 0.1387 0.1470
% Error -1.06 0.18 -0.17
Set#2
Time: 1.5 Seconds Power: 42
Trials# Trial 1 Trial2 Trial3
Distance(ruler) 0.236 0.233 0.234
Distance(Labview) 0.233 0.233 0.2342
# of turns 1.297 1.2944 1.2916
Velocity 0.156 0.1553 0.155
% Error 1.279 0 -0.10
Set#3
Time: 1.2 Seconds Power: 60
Trials# Trial 1 Trial2 Trial3
Distance(ruler) 0.274 0.273 0.273
Distance(Labview) 0.275 0.272 0.273
# of turns 1.528 1.513 1.516
Velocity 0.229 0.227 0.2275
% Error -0.364 -0.18 0
Lab 2:
The second lab was a bit tricky and challenging. Our task was to use the Lego Mindstorm motor to lift weights with a pulley. In the beginning my partner and I had to measure the weight in order to get the mass. Total mass attached to the pulley was 200 grams. Then we connected the motor to the computer and ran the assigned VI file on Labview in order to start the measurements. However it was very helpful that we did not need to write down any of the results after running the motor, our professor showed us a way where we can find all the results stored on Excel after doing all the trials. Labview automatically store all results and sends it to Excel. Our job was to find out how fast does the motor pulls the weight and how much time does it take. We manually change the the power in order to compare results. We had to do four trials with the same power, we decided to make it 60. And 4 other trials with different mass, we chose 160 grams. We explored Newton’s second law F = m * a. As well as finding potential energy PE=m*g*h. After we got all the measurements we were able to find the power used by this formula:
Power used=PE/time
On the next part we were asked to plot different diagrams to clearly show and support our results and measurements.
Results were as shown:
| Speed(rpm) | Battery Discharge | Mass | Power | Time | Acceleration | Potential Energy | Power used |
| 74.391172 | 83 | 0.12 | 60 | 1.752 | 42.460715 | 0.4116 | 0.2349 |
| 72.403616 | 55 | 0.14 | 60 | 1.807 | 40.068409 | 0.4802 | 0.2657 |
| 71.312935 | 55 | 0.18 | 60 | 2.059 | 34.634743 | 0.6174 | 0.2998 |
| 72.94811 | 41 | 0.2 | 60 | 2.319 | 31.45671 | 0.686 | 0.2958 |
| 91.730442 | 83 | 0.16 | 75 | 1.568 | 58.501558 | 0.5488 | 0.35 |
| 93.557727 | 56 | 0.16 | 80 | 0.921 | 101.582766 | 0.5488 | 0.5958 |
| 104.619226 | 97 | 0.16 | 85 | 1.335 | 78.366461 | 0.5488 | 0.411 |
| 112.163146 | 42 | 0.16 | 90 | 1.373 | 81.692022 | 0.5488 | 0.3997 |
Lab 3:
In this lab our task was to generate power through the shaking of a flashlight with a magnet that moves back and forth inside a coil of wire. Then we were asked to collect date through Labview program. Main goal was to understand Faraday’s Law which states that changing magnetic fluxes through coiled wires generate electricity, so the more we shake the flashlight the more electricity we generate. We correlated the number of shakes of the generator in a thirty second interval, with the voltages. Then we calculated the sum of the squares of the voltages. We repeated the procedure three more times with different rates of shakes. Results were as shown:
| Trial 1 | Trial 2 | Trial 3 | ||||||
| Voltages | Squared Voltages | Voltages | Squared Voltages | Voltages | Squared Voltages | |||
| 0.03663 | 0.001341757 | -5.57008 | 31.02579121 | 0.26757 | 0.071593705 | |||
| -0.77166 | 0.595459156 | -2.68333 | 7.200259889 | -0.33544 | 0.112519994 | |||
| -0.04035 | 0.001628123 | -5.55725 | 30.88302756 | 0.01097 | 0.000120341 | |||
| -0.00186 | 3.46E-06 | -0.20714 | 0.04290698 | -0.04035 | 0.001628123 | |||
| 0.0238 | 0.00056644 | -4.2101 | 17.72494201 | 0.0238 | 0.00056644 | |||
| 0.33172 | 0.110038158 | 0.0238 | 0.00056644 | 0.0238 | 0.00056644 | |||
| -1.2592 | 1.58558464 | 0.46002 | 0.2116184 | -0.07884 | 0.006215746 | |||
| 0.52417 | 0.274754189 | -0.06601 | 0.00435732 | -0.06601 | 0.00435732 | |||
| 0.43436 | 0.18866861 | 0.22908 | 0.052477646 | -1.0026 | 1.00520676 | |||
| -0.06601 | 0.00435732 | -0.05318 | 0.002828112 | -3.10672 | 9.651709158 | |||
| 5.51504 | 30.4156662 | -5.55725 | 30.88302756 | -0.20714 | 0.04290698 | |||
| -0.01469 | 0.000215796 | 6.51578 | 42.45538901 | -0.00186 | 3.46E-06 | |||
| -0.33544 | 0.112519994 | 5.56636 | 30.98436365 | -0.07884 | 0.006215746 | |||
| -0.97694 | 0.954411764 | -3.14521 | 9.892345944 | -0.09167 | 0.008403389 | |||
| -0.24563 | 0.060334097 | -5.58291 | 31.16888407 | -0.01469 | 0.000215796 | |||
| -0.05318 | 0.002828112 | 6.46446 | 41.78924309 | -0.09167 | 0.008403389 | |||
| -0.00186 | 3.46E-06 | -0.06601 | 0.00435732 | -0.06601 | 0.00435732 | |||
| 3.34677 | 11.20086943 | 3.4879 | 12.16544641 | -0.07884 | 0.006215746 | |||
| -0.86147 | 0.742130561 | -0.09167 | 0.008403389 | 5.97692 | 35.72357269 | |||
| 5.04033 | 25.40492651 | 6.37465 | 40.63616262 | -0.09167 | 0.008403389 | |||
| -0.15582 | 0.024279872 | 0.16493 | 0.027201905 | -0.04035 | 0.001628123 | |||
| 0.0238 | 0.00056644 | -0.04035 | 0.001628123 | -1.23354 | 1.521620932 | |||
| -4.94141 | 24.41753279 | 1.08869 | 1.185245916 | 6.46446 | 41.78924309 | |||
| -0.06601 | 0.00435732 | 0.08795 | 0.007735203 | -0.07884 | 0.006215746 | |||
| -1.91353 | 3.661597061 | -5.57008 | 31.02579121 | -0.06601 | 0.00435732 | |||
| 0.9219 | 0.84989961 | 0.47285 | 0.223587123 | -0.07884 | 0.006215746 | |||
| 4.74524 | 22.51730266 | -0.41242 | 0.170090256 | -0.06601 | 0.00435732 | |||
| -1.97768 | 3.911218182 | 0.01097 | 0.000120341 | -1.28486 | 1.65086522 | |||
| -5.55725 | 30.88302756 | 0.01097 | 0.000120341 | 3.62903 | 13.16985874 | |||
| Sum of Squared Voltages | Sum of Squared Voltages | Sum of Squared Voltages | ||||||
| 189.5849093 | 359.777919 | 104.8175442 | ||||||
| # of Shakes | # of Shakes | # of Shakes | ||||||
| 60 | 63 | 71 | ||||||
Lab 4:
This lab was pretty interesting because I always wanted to experience how solar panels work and how do they generate electricity. In this lab me and my partner had the chance to actually try to generate electric power through the panels we were given. At the beginning we had to open the Labview program in order to take measurement and record them and then have them organized in Excel. We had a flash light and a solar panel as well as different colors to put on the top of the panel to observe the effect of colors on solar panels. We also had to do different trial with different distances. The results we as shown below:
| Trial 1 | Trial 2 | Trial 3 | Trial 4 | Trial 5 | Trial 6 | |||||
| 0.58832 | 0.537 | 0.58832 | 0.48568 | 0.54983 | 0.49851 | |||||
| 0.49851 | 0.47285 | 0.48568 | 0.537 | 0.56266 | 0.48568 | |||||
| 0.54983 | 0.54983 | 0.52417 | 0.48568 | 0.537 | 0.48568 | |||||
| 0.58832 | 0.52417 | 0.537 | 0.47285 | 0.47285 | 0.57549 | |||||
| 0.58832 | 0.48568 | 0.48568 | 0.49851 | 0.46002 | 0.51134 | |||||
| 0.58832 | 0.48568 | 0.54983 | 0.46002 | 0.47285 | 0.54983 | |||||
| 0.48568 | 0.49851 | 0.47285 | 0.46002 | 0.47285 | 0.48568 | |||||
| 0.58832 | 0.56266 | 0.51134 | 0.47285 | 0.56266 | 0.46002 | |||||
| 0.54983 | 0.54983 | 0.57549 | 0.46002 | 0.46002 | 0.46002 | |||||
| 0.51134 | 0.58832 | 0.56266 | 0.47285 | 0.52417 | 0.537 |
| Red | Orange | Blue | Black | |||
| 0.57549 | 0.47285 | 0.48568 | 0.47285 | |||
| 0.57549 | 0.48568 | 0.54983 | 0.52417 | |||
| 0.46002 | 0.47285 | 0.47285 | 0.46002 | |||
| 0.49851 | 0.47285 | 0.47285 | 0.46002 | |||
| 0.46002 | 0.56266 | 0.47285 | 0.47285 | |||
| 0.56266 | 0.537 | 0.537 | 0.46002 | |||
| 0.49851 | 0.47285 | 0.47285 | 0.46002 | |||
| 0.48568 | 0.56266 | 0.47285 | 0.51134 | |||
| 0.47285 | 0.54983 | 0.56266 | 0.46002 | |||
| 0.54983 | 0.537 | 0.54983 | 0.46002 |
| Colors | Averages |
| Red | 0.513906 |
| Orange | 0.512623 |
| Blue | 0.504925 |
| Black | 0.474133 |
| Distances | Averages |
| 0 | 0.553679 |
| 3 | 0.525453 |
| 7 | 0.529302 |
| 10 | 0.480548 |
| 14 | 0.507491 |
| 17 | 0.504925 |