PH20 5-axis touch system
PH20 is another innovative measurement product from Renishaw that transforms co-ordinate measuring machine (CMM) performance. For the first time, 5-axis technology developed for the multi-award winning REVO® measurement system is available for touch-trigger applications on all sizes of CMM.
Improved touch-trigger metrology performance
Repeatability – improved when ‘head touch’ method is used
Accuracy – improved by using feature based
calibration and ‘head touches’
Pre-travel variation – automatic compensation
Module changing – automatic tip offset correction
About the PH20
PH20's unique ‘head touches'; allow measurement points to be taken by moving only the head rather than the CMM structure. Using only the rapid rotary motion of the head, points can be taken faster, and with improved accuracy and repeatability. Furthermore, 5-axis motion eliminates time spent indexing the head. Together these speed increases typically result in a 3-fold improvement in throughput over conventional systems.
Easy access to features at any angle
PH20’s infinite positioning capability guarantees optimal feature access, minimizing stylus changes.
5-axis simultaneous motion allows larger parts to be measured on the CMM by minimizing the space required around the part for head rotation.
PH20 automatically aligns itself with the part coordinate system, avoiding stylus collisions and the requirement for accurate fixtures.
Faster calibration
The unique ‘inferred calibration’ technique developed for PH20 determines the head orientation and probe position in a single operation, allowing subsequent measurement at any head angle. Further modules only require a few touches on the calibration sphere before use. (Enhanced metrology performance is available if needed by calibrating the probe tip at the feature orientation.)
These dramatic time savings accumulate as the calibration process is repeated on a regular basis to comply with quality procedures or following a probe crash.