GP2Y0A21YK Datasheet, PDF (3/4 Pages) Sharp Electrionic Components – General Purpose Type Distance Measuring Sensors

Fig.4 Distance Characteristics
GP2Y0D21YK
Output H
(Detection) ^{H L}
GP2Y0A21YK/GP2Y0D21YK
Hystersis width
Output L
LH
(Non detection)
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
Output switching point distance
L=24±3cm
Distance to reflective object L (cm)
Fig.5 Analog Output Voltage vs. Distance to
Reflective Object
GP2Y0A21YK
3.5
White paper
(Reflective ratio:90%)
3
Gray paper
(Reflective 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)