A high-precision, 3-axes laser head ODAC® TRIO measures at high frequency and fully synchronized, 3 x diameters at 60° offset to each other, and 6 x corresponding tangent points on the periphery of the product. All measured values are stored in the USYS IPC processor. For completing the whole profile there must be a self rotation of the product of at least 60° or a rotation of the measuring head by means of a rotary device. An angle information is not required. Without rotation, there can also be statistical evaluation of a number of parts, where results can be enhanced by any random manual oscillation or orientation.
ZUMBACH's advanced STEELMASTER software with proprietary EPM algorithms analyses the stored data and calculates all relevant parameters for the profile:
- Diameter: max., min., mean, max.-min.
- Roundness RONt in accordance with ISO/TS 12181-1 (formerly DIN 4291/92): The roundness (peak-to-valley roundness deviation) is calculated exactly for any shape and deviation. Also, the maximum inscribed reference circle MICI and the minimum circumscribed reference circle MCCI are calculated and displayed.
- Deviation of shape and polygonality: Shape deviations in general, especially polygonal shapes (3, 4, 5 & 6-lobed), can now be detected in-line. With this, problems in the process (rolling, peeling, centre-less grinding, etc) can be detected and corrected at an early stage.