Roundness Tester Picks Up Pace/A NEW ROUNDNESS-MEASURING SYSTEM HAS ACHIEVED SUPERIOR ACCURACY WHILE REDUCING MEASUREMENT TIME

摘要

A roundness-measuring system has been developed that its distributor says is 50 percent more accurate than its predecessor and more accurate than other systems in its class. The level of precision has been achieved without sacrificing speed through a manufacturing process involving constant redesign, prototyping and experimentation. The Roundtest RA-H5000 series by Mitutoyo America Corp. (Aurora, IL) has a rotational accuracy of (0.02+6H/10,000) micron. The "H" value in the equation is the probing height of the customer's part. For instance, if the probing height was 50 millimeters, then: 0.02 + 6(50)110000 = 0.05 micron. This value will change depending on the customer's part.