User Manual

GP2D12/GP2D15
Fig.5 Analog Output Voltage vs. Surface
Illuminance of Reflective Object
Fig.4 Distance Characteristics
Fig.6 Analog Output Voltage vs.Distance to
Reflective Object
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
L
H
H L
Hystersis width
Distance to reflective object L (cm)
(Non detection)
(Detection)
Output (V)
Output H
Output L
Output switching point distance
L=24±3cm
GP2D15
Analog output voltage V
O
(V)
Surface illuminance of reflective object (lx)
0
3.0
2.8
2.4
2.0
1.6
1.2
0.8
0.4
0 1400012000100004000 80002000 6000
Light source
equivalent to
sun light
GP2D12
Reflective object
Kodak Co., Ltd.
gray cards R-27
(reflective ratio : 90%)
L=10cm
L=30cm
L=60cm
GP2D12
illuminance
meter
Draft Reflectivity
White 90%
Gray 18%
Distance to reflective object L (cm)
Analog output voltage V
O
(V)
0 50 8060 7040302010
0
3.0
2.8
2.4
2.0
1.6
1.2
0.8
0.4
White
Gray
GP2D12
Fig.7 Analog Output Voltage vs.Ambient
Temperature
Fig.8 Analog Output Voltage vs.Detection
Distance
Analog output voltage V
O
(V)
30 9040 7050 60 800−10 10−20 20
0
3.0
2.8
2.4
2.0
1.6
1.2
0.8
0.4
Ambient temperature T
a
(°C)
L=10cm
L=15cm
L=20cm
L=50cm
L=40cm L=30cm
L=60cm L=70cm L=80cm
GP2D12
Analog output voltage V
O
(V)
−3 52 3−1 40−4 1−5 −2
0
3.0
2.8
2.4
2.0
1.6
1.2
0.8
0.4
Detection distance X (cm)
L(Distance to
reflective object)
Kodak Co., Ltd. gray cards R-27
(reflective ratio : 90%)
Sensor
GP2D12
X
( Detection
distance )
−X( Detection
distance )
L=10cm
L=20cm
L=30cm
L=40cm
L=80cm
GP2D12