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Calculating between the heads, Calculating between the heads -18 – KEYENCE LK-G Series User Manual

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3-18

3

LK-G-M-NO3-E

3 Function Settings

Calculating Between the Heads

The surface displacement, thickness, and height-difference measurements can be performed
by calculating the data acquired from the setting of head A or head B according to the
measurement target.

Function Nos. and measurement examples

* Used in combination with the auto offset function.

When transparent object is selected for the measurement mode of head setting, head A and head B perform
surface measurement if

Add-Ab

or

Sub-Ab

is selected.

Sub-functions and measurement surfaces

*When

trAn-A

is selected:

¤

=4, when

tran-b

is selected:

¤

=5

Function No.

Calculation

Function

A-0

a

Head A

Surface displacement measurement using the
head A or B

A-1

a

Head B

A-2

add-ab

Head A + B

Thickness
measurement
using the head A
and B

A-3

sub-ab

Head A - B

Height-difference
measurement
using the head A
and B

A-4

tran-a

Head-A transparent
object

Performs the displacement measurement and
thickness measurement of the transparent object.
The measurement surface is selected by the sub-
function.

A-5

tran-b

Head-B transparent
object

Sub-function

Measurement surface

Function

a-

¤

0

1

1

Displacement measurement of
one surface

a-

¤

1

2

2

a-

¤

2

3

3

a-

¤

3

4

4

a-

¤

4

1-2

1-2

Measurement and calculation of
two phases
By selecting "4", the thickness of
the first sheet of glass can be
measured.
By selecting "7", the gap between
the first and the second sheets of
glass can be measured.

a-

¤

5

1-3

1-3

a-

¤

6

1-4

1-4

a-

¤

7

2-3

2-3

a-

¤

8

2-4

2-4

a-

¤

9

3-4

3-4

Thickness measurement

Height
differe-
nce
measu-
rement

1

2

3

4

1

2

3

4