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### Exercise 4
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I denne exercise benyttede vi os af programmet DataLogger.java, der er i stand til at logge data fra lys-sensoren (lys-værdier). Output-værdierne er plottet ind som grafer, der viser det læste lys-værdier ved test-tur af LEGO bilen. Forskellige sample-intervaller er afprøvet for at se hvordan det påvirker oscillationerne i grafen.
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Graf 1 ( sample 10) :
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![alt text](https://photos-1.dropbox.com/t/2/AACb5KyVJhlASwqwnHZU69X3vgtPcLNYboMj7B8OABU9kw/12/3327500/png/1024x768/3/1423760400/0/2/Lesson%201%20-%20Exercise%206%20-%2075%20ms.png/CIyMywEgASACIAMoASgC/Vz3XhWulqqYntFVNQ1imrwN8AQGWGrZ5CORgOsr3lCA)
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Graf 1 ( sample 10):
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![alt text](Lesson 1 - Exercise 6 - 10 ms.png)
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Graf 2 (sample 25):
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![alt text](https://photos-6.dropbox.com/t/2/AADf4_Angcc6nHBrp0c00R7TpOsBzAwmhsD2u_gDo63ecg/12/3327500/png/1024x768/3/1423760400/0/2/Lesson%201%20-%20Exercise%206%20-%2025%20ms.png/CIyMywEgASACIAMoASgC/X6eue8oOR4QJULC8ukDBnP15MPun0waWb_pR2iekeoY)
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![alt text](Lesson 1 - Exercise 6 - 25 ms.png)
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Graf 3 (sample 50):
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![alt text](https://photos-6.dropbox.com/t/2/AACId2cHCJ_05an8VWRV88MKMqGGmNkzyenUxyysl0bLBg/12/3327500/png/1024x768/3/1423760400/0/2/Lesson%201%20-%20Exercise%206%20-%2050%20ms.png/CIyMywEgASACIAMoASgC/nvBCcnGO9d1JTlHvulUqgNkZ16_gWHbon1gNFeqjuhQ)
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![alt text](Lesson 1 - Exercise 6 - 50 ms.png)
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Graf 4 (sample 75):
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![alt text](https://photos-1.dropbox.com/t/2/AACb5KyVJhlASwqwnHZU69X3vgtPcLNYboMj7B8OABU9kw/12/3327500/png/1024x768/3/1423760400/0/2/Lesson%201%20-%20Exercise%206%20-%2075%20ms.png/CIyMywEgASACIAMoASgC/Vz3XhWulqqYntFVNQ1imrwN8AQGWGrZ5CORgOsr3lCA)
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![alt text](Lesson 1 - Exercise 6 - 75 ms.png)
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Perioden på bølgerne i de forskellige grafer bliver længere jo højere frekvensen er.
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