Operation
Manual
Raytek
CM
4
3.2 Optical Diagram
D: S @ focus point= 13:1 / 11.5mm @ 150mm
D = Distance from sensor to target
S = Spot Diameter (@90% energy)
Figure 1: How to read the optical diagram
3.3 Scope of Delivery
All models are provided with:
Mounting nuts
Support software CD
Quickstart Guide
Calculating the Target Spot Size
To calculate the target spot size from two known points within an
optical diagram the following formula can be used:
(
)
(
) (
)
⎥
⎦
⎤
⎢
⎣
⎡
−
⋅
−
−
+
=
n
f
n
f
n
x
n
x
S
S
D
D
D
D
S
S
S
x
= unknown diameter of target spot
S
n
= smallest known diameter of target spot
S
f
= greatest known diameter of target spot
D
x
= distance to unknown target spot
D
n
= distance to smaller known target spot
D
f
= distance to greater known target spot
DISTANCE: SENSOR TO OBJECT(mm)
DISTANCE: SENSOR TO OBJECT(in)
SPOT DIA.（mm）
SPOT DIA
.（in）
D:S
1.888.475.5235
