Bart's Field of View Experiment (with Niclas, Navid and Kenny)
Today, we did a new experiment to test the range and visual (ultrasonic) limitations of our NXT's ultrasonic sensor.
First, I would like to introduce our trusty NXT
Other materials -
- Hard surface
- Meterstick(s)
- Tape
- Something to record dat
a with.
In order to complete the experiment, we used the suggested set up, placing the NXT on one side of the board, and a long stretch of tape across. Then we were able to examine whether the NXT was able, or unable to detect a coke can. We started off by placing the can at the limit of the NXT's range, to determine the furthest it could see in a straight line. Then, the closest. From here on, we moved forward at intervals and found out how wide the field of view was for the NXT, by moving the can all the way to the maximum horizontal range of the ultrasonic sensor.
When we had finished, the board looked like this. Concluding that the field of view is somewhat parabolic, yet it has a maximum point, which is somewhere along 
the center which is when the field is at it's widest.
Recap:
1. Place NXT on one side of board, place straight stretch of tape approx 1 meter long leading away from robot.
2. Using can technique, measure furthest distance robot can detect, then nearest.
3. Measure in between furthest and nearest point at equal intervals.
4. Using a ruler/meterstick, measure actual distances in cm/in.
5. Record data in either a data table or on a graph.
-Bart
2 comments:
Nice explanation of your procedure Bart, it was very straightforward and precise in word choice making it easy to just scan over your post and understand what was going on.
Excellent blog entry Bart. You were very concise in your entry and well organized in your explanations. I like that you included a summary.
If you go back to editing your blog, you may want to consider setting up your pictures on using the left or right justify. This will allow you to move the pictures to specific spots in your text. It will make it more clear when you are referencing a particular picture.
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