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Note:
This feature is functional on live video only.
Warning:
Analytic applications are intended to assist the user whilst performing in-situ visual inspections. Results will vary depending on your application
and the method employed during setup. You, the user, are responsible for following the appropriate procedures and standards. Waygate Technologies
cannot be held responsible for the accuracy and outcome of any inspections. You must review the datasheet for intended use and limitations prior to use.
Prior to use on a live visual inspection of rotating aerofoils, this analytic requires a verification process to be performed. This is needed to obtain peak
performance from the analytic.
Note:
This analytic has an added feature to enable Users to toggle between
LOW
and
HIGH
sensitivity modes. The factory default setting is
LOW
.
HIGH
may be used to detect problematic scenes when sufficient contrast is difficult to achieve when in
LOW
mode. Only activate this
HIGH
setting if
successful verification is difficult to achieve in the default setting.
Note:
Blade counter analytic will ONLY function if MViQ probe is stationary during operation. Some minor movement of the probe is permissible but not
recommended. A function to reveal the ‘tracking region’ or Blade Counter Lines is available. This can be activated to enable probe re-adjustment back
to its original position if needed.
Blade Counter analytic will only be a reliable function if setup properly Ensure the ‘tracking region’ does not include background static or stator vane
aerofoils.
Rules for Blade Counter
The following steps outline the setup procedure to create an acceptable tracking region in which the analytic will reliably operate.
Setup Rules:
• Entry and Exit Lines must be parallel to the blade at some point as it passes through the FoV.
• For views with large changes in blade angle, the distance between the Entry and Exit Lines must be kept short.
• Entry and Exit Lines are the positions where the blade edge enter and exit the FoV.
• Limit Line should be placed between the Entry and Exit Lines.
• The Limit Line should be roughly perpendicular to the Entry and Exit Lines.
• The Limit Line must not cover more than one blade edge at a time.
• The Limit Line should be placed such that stator vane aerofoils or nozzle
• guide vanes are occluded from view.
• Trigger Point must be positioned to coincide with a location with sufficient visual contrast.
The Trigger Point should be positioned near to the middle of the Limit Line Adjust and position the probe to a suitable position upon which to conduct
the visual inspection. The operation of the Blade Counter analytic requires the probe to remain stationary.
