Roundness Measuring Instrument RMI-D420 Roundness Introduction Roundness measuring instrument is benchmark against precision rotary center, the quantitative evaluation of the cross-section roundness is made by measuring the radius varitation of actual contour of workpiece in different angle position to rotary center by sensor. It is used to measure the cross-section roundness and coaxiality of internal rotation and external rotation and face runout, etc. Measurement Capability: Evaluation item: Roundness, concentricity, coaxiality, parallelism, perpendicularity, flatness, Single radial runout, Single axial runout Analytical ability: Spectrum analysis, gap/burr automatically removed, waveform analysis Roundness evaluation (4 methods): Minimum zone method (MZC), least square (LSC), minimum circum circle (MCC) and maximum inscribed circle (MIC) Roundness filtering gear: 1-15upr, 1-50upr, 1-150upr, 1-250upr, 1-500upr, 15-100upr, 15-500upr, 2-15upr Filtering expression: Gaussian (ISO standard) Magnification: input range 1-100000 Roundness Measuring Instrument RMI-D560C Cylindricity Introduction Cylindricity measuring instrument is benchmark against precision rotary center and linear motion guide, the quantitative evaluation of the cylindricity is made by measuring the radius variation of actual contour of several cylindricity surface in different angle position to rotary center by displacement sensor in the guide. It is used to measure the error of contour shape of cylindricity workpiece (Roundness, cylindricity, planeness, straightness), position error ( concentricity, coaxiality, run-out and perpendicularity) Measurement Capability: Evaluation item: Cylindricity module: Radial full jump, concentricity, taper, radius Roundness module: Concentricity, radial single jump, wall thickness difference Straightness module: Parallelism, verticality Single section flatness module: Axial single jump, verticality and parallelism Multi-section flatness module: parallelism, Axial full jump, verticality Commutator module: Single contacts jump, Adjacent contacts jump, intermittent difference of contacts. Reference standard for cylindricity evaluation: LSCY、MZCY、MICY、MCCY、OSCY