Z-Trak2 3D Profiler Sensors
3D Data Type output format description
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125
UniformX Z (RectifiedC)
As mentioned above, the sampling interval between points varies in both X and Z in the
measurement area. The UniformX Z format intends to make the sampling interval uniform in the X
direction; each profile only consists of 16-bit Z values, the interval in X-axis (called step size) is
implicit. This is achieved through resampling, as depicted below. The data is therefore "rectified" to
a uniform sampling pattern.
•
Output is 16-bit calibrated Z data.
Z (16-Bit)
X=index 00
Z (16-Bit)
X=Index + 1
Z (16-Bit)
X=Index + n
Uniform
Spacing
Calibrated Z Output
•
The raw X data are resampled, providing a uniform scale for the Z data in any location of the
measurement area. The step size is a feature of the X-Axis category in Z-Expert.
•
The calibrated Z data (16-bit) must be multiplied by the Z scale factor to obtain the real-world
Z value in the specified measurement unit.
•
Z values below the Far-FOV (i.e. < 0) return as invalid.
•
Z-Expert graphs the Z output data in the selected measurement unit at each X index point;
floating the mouse over the profile will show the calculated real-world X measurement relative
to the left edge of the measurement area. Use the view settings to change the X-axis labels to
these transformed X values.
Rectified
Field of View
(FOV)
X-axis = Uniform Sampling points
equal in count at any FOV location
X-axis = Uniform Sampling points
Calibrated Profile Depth (Z)
Anchor Point (0,0)
Model Dependent
