Keyence PI-G Series Luster Recognition Sensors
Features
- Detection Unaffected by Target Color
- Luster Differentiation Capability
- 1 ms Response Speed
- Built-In Hysteresis Adjustment Trimmer
Description
The Keyence PI-G Series Luster Recognition Sensors utilize Keyence's unique optical system to provide on-line
luster differentiation. The PI-G Series detects a change in luster only. Therefore, detection is
unaffected by changes in target colors on printed mark, etc.
Since the PI-G Series employs a
visible red LED as the light source,
the point of detection can be
visually confirmed. This allows the
sensor head to be easily aligned
with a target.
Hysteresis can be adjusted based on target surface conditions
(wrinkle, etc.), oscillation or slant.
When light hits a surface, the amount of reflection depends on the
shininess of the surface. When the luster level is high (lustrous), the
light reflects specularly. When the luster level is low (lusterless), the
light reflects diffusely. By detecting this difference with a line sensor in
the receiver, luster can be differentiated.