FAQ No. FAQ01277
Question
What is the most effective type of reflection for a given sensing
object?
Answer
Diffuse Surface:
The surface has a uniform roughness so the reflected light scatters in a
uniform manner. The reflected light is distributed evenly in all
directions.
Recommended models
Diffuse Reflective Sensor Heads:
ZX-LD40 (Diffuse Reflection)
ZX-LD100 (Diffuse Reflection)
ZX-LD300 (Diffuse Reflection)
Refer to
ZX-L-N Smart Sensor (Laser
Displacement Type) for details.
Mirror Surface:
Light is reflected at the same angle as the incident angle. There is no
reflection in other directions.
Recommended models
Regular Reflective Sensor Heads:
ZX-LD30V (Mirror Reflection, Spot Beam)
ZX-LD30VL (Mirror Reflection, Line Beam)
Refer to
ZX-L-N Smart Sensor (Laser
Displacement Type) for details.
Metallic Surface:
There are inclinations on the surface (e.g.,
hair lines) and the reflection density rises suddenly in some areas.
Recommended models
Line Beam Sensor Heads:
ZX-LD40L (Diffuse Reflection, Line Beam)
ZX-LD100L (Diffuse Reflection, Line Beam)
ZX-LD300L (Diffuse Reflection, Line Beam)
Refer to
ZX-L-N Smart Sensor (Laser
Displacement Type) for details.
Transparent Object:
Similar to a mirror surface. Some diffuse reflection exists but it is
extremely small.
Transparent objects cannot be detected with
Smart Sensors.
The following products are effective in
detecting transparent objects:
•
ZS-HLD/-LD Series Smart Sensors (2D CMOS Laser Type)
Other Displacement Sensor FAQs
 The E4PA A1 (power indicator, green LED) and A2 (error indicator, red LED) indicators flash alternately and the E4PA is not operating properly. What is causing this, and what can we do to resolve the problem?
How are the gain switch functions AUTO, METAL, WHITE, and BLACK used in a Reflective Sensor?
What is the chemical resistance of the E4PA?
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