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Reflective Sensor Heads: FUN Mode Functions
Section 3-5
50
Measuring Thicknesses of Sensing Objects: One-point Scaling C
The thickness of a sensing object can be measured by using two-sensor
operation and one-point scaling (and inverting display values). Perform the
two-sensor operation A+B to display the sum of the measured values for
two Sensor Heads. Settings are made on the 2CH Amplifier Unit.
Next, set the actual sensing object and set the value to be displayed in the
scaling mode. Then, set to enable inverting the display values so that
smaller values are displayed when larger values are measured (i.e., when
thinner sensing objects are measured). Two-point scaling can be also used
if both sensing object thicknesses are known.
Example: One-point Scaling C
Sensor Head
1CH
Sensing object thickness is required.
First connect two Amplifier Units
to perform the A + B operation.
Sensing object
A
Thickness
1CH
Calculating
Unit
Sensor Head
B
2CH
2CH
A + B
Measured value = Display value
Measured value
Display value
150.0
160.0
170.0
150.0
160.0
170.0
60.0
50.0
40.0
: Scaling value input
160 mm is displayed as 50 mm and
Current measured value A +
Measured value B = 160 mm
Sensing object thickness = 50 mm
the display values are inverted.
All display values are offset
and inverted.
160.0
50.0
160.0
Display value
(mm)
Actual values measured
Display values
Actual value measured (mm)
The larger the measured value is, the smaller the
displayed thickness value (display value) is.
Z157-E1-01C.book Page 50 Thursday, August 31, 2006 5:13 PM