GP2Y0A21YK0F Datasheet, PDF (5/9 Pages) Sharp Electrionic Components – Distance Measuring Sensor Unit Measuring distance: 10 to 80 cm Analog output type

Fig. 2 Example of distance measuring characteristics(output)
3.5
White paper (Reflectance ratio 90%)
3
Gray paper (Reflectance ratio 18%)
2.5
2
1.5
1
0.5
0
0
10 20 30 40 50 60 70 80
Distance to reflective object L(cm)
3.5
6cm
5cm
3
7cm
8cm
2.5
10cm
2
1.5
1
50cm
0.5
80cm
0
0
15cm
25cm
20cm
30cm
40cm
White paper (Reflectance ratio 90%)
Gray paper (Reflectance ratio 18%)
0.05
0.1
0.15
0.2
Inverse number of distance (1/cm)
GP2Y0A21YK0F
Sheet No.: E4-A00201EN
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