Reference value
B5W-LB Light convergent reflective type sensor User’s manual (E592)
In the case of detecting small objects, or background objects existence:
Ideally, the size of the actual object to be sensed must be bigger than
the emitter's lighting spot. Since the B5W-LB series carries an infrared
LED, the light spot is invisible. However the size of the spot can be
checked according to “Spot diameter-distance characteristics”
(reference value) or “Operating range” (reference value).
When any background objects which B5W-LB should not detect are
located in the sensing area, the objects should be ideally eliminated
from the area to achieve a stable sensing. For example, the
background objects/plates might be partially cut off, considering the
size of the sensing spot location.
In the case that the sensing objects have a glossy surface (mirror, glass plates, etc.);
It is necessary to consider the mounting position of the sensor with respect to the angular position of the
sensed object, in both the vertical and horizontal planes. This is because the output voltage will greatly depend
on the angle, due to the optical design of B5W-LB. For glossy objects, the sensor should essentially be
mounted at a right angle to the objects. Please refer to “Angular characteristics” (reference value) in the data
sheet.
According to the data, mounting the sensor vertically, instead of horizontally, will be preferable if angular
fluctuations of the glossy objects occur.
Reference value
Reference value
Angle characteristics (Up and down)
Angle characteristics (Left and right)
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