Frequently Asked Questions
1. Why not use CMM to measure my rotors?
Paragon can take hundreds of thousands of times more data than a CMM in a given amount of time. In addition, the data is automatically related to provide Roundness, Eccentricity, Run-out, Flatness, and Parallelism results. CMMs are not designed to do these specialized measurments and operations.
2. Why is Paragon V3.0 more accurate than other CGI systems?
Other CGI systems base their results on 1000 to 7200 measurments per surface. This is a statistically insufficient amount of data to adequately characterize the surface. Paragon measures each surface over 500,000 times to construct a much more accurate characterization of the surface.
Many CGI systems claim “16 bit accuracy” but measure each point only once or twice sequentially using a single A-D convertor . This does not provide 16 bit accuracy. Paragon samples each point 140 times to provide statistically relevant data to yield true 16 bit accuracy.
In other systems, anomalous readings generated by RFI/EMI and other noise sources become part of the data. Even if filters are applied later, this bad data still influences the resultant surface characterization. The Paragon DAS uses on-board Digital Signal Processors (DSPs) to recognize and remove anomalous signals before they reach the data stream, insuring that the results are not corrupted.
3. Does Paragon V3.0 meet ISO standards?
Paragon systems conform to ISO-1101, ISO-6318 and BS-3730 standards for Circular Geometry Inspection.
4. Does Paragon V3.0 correct for part off-centeredness and tilt?
Mathematical algorithms correct data for part off-centeredness and tilt on the inspection table. Paragon features User-selectable tilt corrections. With sufficiently accurate fixturing and long-travel gauge heads, Paragon can obtain accurate measurements using tables which have no centering or leveling capability. Eliminating these steps greatly reduces setup time, increasing productivity.
5. Will I have to have Turbine Metrology write my test programs?
No. Unlike some systems, Paragon contains a complete Test Creator/Editor module so the User may write his own test routines. This not only saves a great deal of money in not having to return to Turbine Metrology every time the User wants to test a new type of part, but it also greatly aids testing integrity by assuring that similar parts will be measured the same way every time.
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