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Optimizing Ball Diameter Measurement
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Optimizing Ball Diameter Measurement
 
Research
Optimizing Ball Diameter Measurement
From prattandwhitney.com
Ball measurement presents challenges not found in parallel surface and cylindrical geometries. This paper will discuss four approaches to meeting these challenges (for balls up to 8” inches in diameter). One of the approaches presented, was developed to optimize the balance between speed and accuracy typically associated with selection of measurement methodology. A brief discussion of the measuring instrument used is also presented. Ball measurement presents mastering, handling and positioning challenges not found in the measurement of geometries such as cylinders (i.e., plugs and rings) and parallel surfaces (i.e., gage blocks and snap gages). Several alternative methods exist to, in varying degrees, meet this challenge, and their discussion comprises the major portion of the body of this paper. While the methods presented represent viable alternatives, each one does represent a tradeoff between speed and accuracy. Certain methods are more appropriate for less demanding, higher volume applications, and others are better suited for lower volume, higher accuracy work. The method we developed and recommend attempts to minimize this tradeoff, providing a repeatable method by which one can quickly measure without appreciably compromising accuracy.
 


Products & Services
Density and specific gravity instruments are meters used to determine density and specific gravity.
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Product Announcements
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Technical Articles
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