GP2D12 Sharp Electronics, GP2D12 Datasheet - Page 8

• Manufacturer Part Number: GP2D12
• Manufacturer: Sharp Electronics
• Type: Sensor DIST. Measurer

Specifications of GP2D12

• Sensing Distance: 80cm
• Operating Temperature (max): 60C
• Operating Temperature (min): -10C
• Pin Count: 3
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Not Compliant

NOTES
• Keep the sensor lens clean. Dust, water, oil, and
• When using a protective cover over the emitter
• Objects in proximity to the sensor may cause reflec-
• Sources of high ambient light (the sun or strong arti-
other contaminants can deteriorate the characteris-
tics of this device. Applications should be designed
to eliminate sources of lens contamination.
and detector, ensure the cover efficiently transmits
light throughout the wavelength range of the LED
(λ = 850 nm ± 70 nm). Both sides of the protective
cover should be highly polished. Use of a protective
cover may decrease the effective distance over
which the sensor operates. Ensure that any cover
does not negatively affect the operation over the
intended application range.
tions that can affect the operation of the sensor.
ficial light) may affect measurement. For best
results, the application should be designed to pre-
vent interference from direct sunlight or artificial light.
Figure 6. Proper Alignment to Surface Being Measured
Figure 7. Proper Alignment to Moving Surfaces
(AVOID IF POSSIBLE)
DIRECTION
OF MOVEMENT
(AVOID IF POSSIBLE)
8
• Using the sensor with a mirror can induce measure-
• If a prominent boundary line exists in the surface
• When measuring the distance to objects in motion,
• A 10 µF (or larger) bypass capacitor between V
• To clean the sensor, use a dry cloth. Use of any liq-
• Excessive mechanical stress can damage the
ment errors. Often, changing the incident angle on
the mirror can correct this problem.
being measured, it should be aligned vertically to
avoid measurement error. See Figure 6 for further
details.
align the sensor so that the motion is in the horizontal
direction instead of vertical. Figure 7 illustrates the
preferred alignment.
and GND near the sensor is recommended.
uid to clean the device may result in decreased sen-
sitivity or complete failure.
internal sensor or lens.
(PREFERRED)
(PREFERRED)
DIRECTION
OF MOVEMENT
Data Sheet
GP2D12
GP2D12-2
GP2D12-1
CC