The large aperture angle and the high numerical aperture of confocal chromatic sensors enable high resolution with a small light spot size .
3D measurement of complex geometries and rotating components
When measuring large , complex components , the scanCONTROL series of 3D laser scanners from Micro-Epsilon are used . These scan large measurement areas at high resolution and are ideal for use in CMMs due to the low sensor weight . Measurement data acquisition is very fast with measuring rates up to 10 kHz . As a result , a complete 3D point cloud is available , which allows precise evaluation , quality inspection as well as further processing . The scanCONTROL laser scanners are based on the latest GigE Vision and GenICam standards and can therefore be integrated in a wide range of image processing environments . The 3DInspect software is a powerful tool for parameter setting , evaluation and output .
Among other things , laser scanners are used for prototype scanning . The sensor can be guided by a robot arm or integrated in a measuring table . The scanner measures the component while being moved over the component from all sides . Taken from multiple directions , the user obtains a 360 ° image . A software solution transforms it into a complete 3D point cloud within an extremely short time .
Curved and structured surfaces such as gears or external threads can be reliably and precisely detected using confocal chromatic sensors .
To enable high-precision measurements , the measurement data must be perfectly synchronised with the measurement position . Conventional sensors are often triggered externally and detect the profile with a time delay that causes inaccurate position data . The scanCONTROL laser scanners from Micro-Epsilon , on the other hand , offer a special CMM trigger for this purpose . This is a parameter output optimised for CMMs . The sensor can therefore send trigger pulses in the middle of the exposure time and thus assign the profile to an exact measuring position . Fine tuning is also possible , for example , to compensate for run times of the pulse in the cable . As scanCONTROL laser scanners
Laser scanners are used for 3D measurement of complex geometries and rotating components . For quality assurance of rotary pistons , the piston surface is measured 360 ° and compared with the nominal shape within a narrow tolerance .
are available with different measuring ranges , both large and small objects can be detected . The captured 3D point clouds can be compared with existing CAD models to make any discrepancies obvious .
For more information on optical sensors for CMMs , please call the Micro-Epsilon sales department on + 44 ( 0 ) 151 355 6070 or email info @ micro-epsilon . co . uk
For further information , please visit www . micro-epsilon . co . uk
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