Instrument inspects as a surface finish measuring system, a roundness measuring system or both at once.
Too often, manufacturers of cylindrical parts invest a great deal of money in special fixtures to minimize alignment problems that cause errors with traditional surface finish checking devices. Hard fixtures must be scrapped when components change size or shape; flexible fixtures are prone to setup errors and tend to lack stability. A new roundness-measuring instrument, the Talyrond 365 from Taylor Hobson Inc. (Leicester, England), combines roughness and roundness checking into one inspection station.