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CLIFFSENSORRESULTS

How do the Cliff Sensors respond to a glossy or flat surface?

	One potential way to utilize the Create’s cliff sensors is to determine different materials. The hypothesis is that there will be a significant change in the Strength reading of the cliff sensors when they are faced with differently reflective surfaces. 
	In order to test the effect of a glossy surface vs. a flat surface on the Create’s cliff sensors, we took two identical pieces of colored paper, covered one in clear packing tape and left the other one alone. Then, we placed the Create on top of the paper and recorded the feedback from the cliff sensors.

Materials: Construction Paper Packing Tape Create Robot

Material: Create Feedback: Yellow Reflective

• 9 212 7 36 5 83 6 48
• 9 216 7 36 5 83 6 48
• 9 216 7 36 5 83 6 48
• 9 222 7 17 5 70 6 36
• 9 228 7 30 5 82 6 51

Yellow Non-Reflective

• 7 152 4 238 3 107 4 102
• 7 152 4 236 3 106 4 101
• 7 152 4 240 3 108 4 104
• 7 152 4 230 3 102 4 96
• 7 152 4 239 3 107 4 103

Black Reflective

• 11 138 8 206 6 10 4 83
• 11 138 8 208 6 12 4 84
• 11 140 8 208 6 15 4 87
• 11 140 8 204 6 15 4 75
• 11 142 8 201 6 9 4 84

Black Non-Reflective

• 4 220 5 116 3 85 4 117
• 4 218 5 105 3 80 4 110
• 4 220 5 116 3 84 4 114
• 4 220 5 112 3 82 4 113
• 4 220 5 116 3 85 4 118

According to this information, the Cliff Sensors can definitely discern between different lusters. Shiny/glossy materials give a much higher strength reading than the non-shiny/flat materials.