TARGET
Measurement
Range Reference
Start of Measurement
Range
Reference
Distance
End of
Measurement
Range
LH Series
Sensor
Displacement Measurement
Installation
Tips
Target
motion
must be perpendicular to
emitter/receiver
axis.
Some targets (those with a stepped plane facing the sensor, a boundary line, or rounded targets) pose
specific
problems for sensing
distances. For such
applications,
see below for suggested
mounting
orientations.
Height-difference
By a Wall
Moving Target
Correct
Incorrect
Correct
Incorrect
Correct
Incorrect
A
B
A
B
A
B
A
B
A
B
A
B
Border of
different
luster or color
Displacement in a hole
Correct
Incorrect
Correct
Incorrect
A
B
A
B
A
B
A
B
2.2.2 Thickness Delta Measurement
Installation
For thickness delta measurement using two sensors, the "master/slave
separation"
is
significant
instead of the "middle of range" that is
significant
when measuring displacement. It is frequently necessary to measure materials whose thickness lies in a
particular
range. In
such cases you should increase the distance apart by the nominal thickness of the material that is being measured.
The factory defaults for a thickness delta measurement are as follows:
Model
Default Nominal Thickness
Ideal Master/Slave
Separation
LH30
5 mm
65 mm
LH80
20 mm
180 mm
L-GAGE
®
LH Series Sensor
www.bannerengineering.com - Tel: 763.544.3164
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