Video Inspection Software User’s Guide
Section 3: Probes
Features are measured by probing points along the edge of the feature within the live video window. Points are probed as part of either an explicit or automatic feature measurement using one of the video or touch probes. There are two main categories of video probes and two of touch probes: • Crosshair video probes • Multipoint video probes • Straight down touch probes • Star touch probes
NOTE Touch probes are included only as an option on CNC systems.
Crosshair Probes Crosshair probes capture a single point at a time. The software supports two types; simple and active. • The simple crosshair probe requires that the operator manually line up the crosshair center with a point to be probed on the feature edge. • The active crosshair probe requires that the operator manually line up the crosshair center with an edge then the probe incorporates a relatively large area of edge detection and will detect the feature edge automatically, thereby increasing speed and accuracy. Multipoint Video Probes Two multipoint probes capture several points along an edge in a single probe firing. The MeasureLogic probe measure features with a single press of the fingertip or click of the mouse cursor on a feature edge. The MeasureLogic probe can automatically determine the feature type being measured eliminating the need to identify a feature type prior to probing. The EyeMeasure probe is drawn directly on an edge by the operator’s fingertip or the mouse cursor and facilitates probing complex or partially obscured part edges. The number of points captured by multi-point probes can be set by the user and is discussed later in this section.
NOTE Some M3 Systems support the Auto Focus mode which performs z-axis focus position calculations. Single point probes can be used in non-CNC manual zoom systems, and both the multipoint and single point probes can be used in motorized zoom CNC systems.
Touch Probes Touch probes capture a single point at a time and are placed in contact with the part features manually as programs are recorded and then automatically as the programs are played back. While video probes typically probe part features in XY space, touch probes probe three-dimensional features in XYZ space.
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