Omron FH-3 Series Reference Manual page 761

Sampling position1
(x1,y1)
Reversed position from position
and calculated rotation center
(Sx1,Sy1)
Calculated
position of
rotation center
Rotation center position of machine
Maximum error detection values
This value is for confirming the accuracy of calibration result.
Output X and Y maximum error detection values when the Stage has X or Y axis.
This value is calculated using a calibration data calculated in Master calibration and a measurement result
sampled parallel movement.
If a problem of magnification, axis angle or center position of rotation is occurred, this value may be larger.
a1
Reference position (X,Y)
FH/FZ5 Processing Item Function Reference Manual
Sampling position2
(x2,y2)
Reversed position
from position
and calculated
rotation center
(Sx2,Sy2)
Calculation
error
distance 2
(L2)
Calculation error
distance 1 (L1)
Reference position
(SX,SY)
Coordinate of sampling
position 2 (X+a2, Y+b2)
a2
Coordinate of
sampling
position 1
(X+a1, Y+b1)
b2
b1
4) The absolute distance value of each
coordinate from calibration conversion
result and sampling position.
5) Defines a maximum value of X coordinate
side as X maximum error detection value.
Y coordinate side is same as X coordinate
side.
1) Parallel sampling is executed based on
sampling settings. Reference position may
change depending on sampling method.
Vision Master Calibration
4
759