Blu-Scan Laser Scanning Sensor
Nov 2010WENZEL Group GmbH & Co. KGRequest Info
GREDING, Germany, Nov. 18, 2010 — Wenzel ScanTec GmbH has implemented the Blu-Scan blue laser scanning sensor into Mobile Scan3D, an industrial 3-D mobile computer numeric control (CNC) laser scanning machine for portable scanning applications.
The laser scanner is used in reverse engineering and part inspection verification. Because the system offers full CNC automatic scanning, the accuracy of the acquired dataset is enhanced over the same data acquired using a portable arm, and it produces automatically structured and ordered data, minimizing subsequent data cleanup and processing time.
The company says that the new Blu-Scan sensor projects a finer line (50µm laser thickness) than the previous generation of red laser sensors and that it has higher resolution and is more tolerant to surface textures. The advantages over red laser technology are more power, constant laser line thickness through the measurement area and less speckle because of its shorter wavelength, which also provides improved focus and a thinner projection line. To the end user, all of this results in higher data collection rates, higher resolution data and more accurate processed images.
MobileScan3D can be used for numerous applications, and an optional rotary table can be used to rotate the part and perform a complete scan pass, providing all the scans in the same coordinate system. Because the whole system is fully computer numerically controlled, the results are extremely repeatable and not operator dependant. Different sensors are interchangeable and can be switched in a couple of minutes without the need to recalibrate the system.
The addition of the rotary table provides three axes of CNC motion and enhances the system for fast part scanning. The user defines the scan path, and the CNC rotary table indexes by angular increment, decreasing the scanning time for a large array of parts.
Its portability and rapid setup enables scanning on location without the tedious and time consuming effort required by the current portable arm scanning solutions.
The time from arrival at the scanning location to having the system fully operational is <10 min. The complete MobileScan3D system is transported in two cases, or three, if the rotary table is included. All cases snap together for easy transportation as a single unit that can be attached to a mobile trolley for added convenience. Interconnecting cables are all color-coded, and sensor set up and initiation are quick. MobileScan3D can be used with a tripod for maximum portability or can be mounted on a support table.
The scanned ordered dataset is streamed in real time into the accompanying data evaluation software. A full 3-D computer-aided design (CAD) model can be generated for output in STL, IGES, STEP or ASCII file formats.
MobileScan3D is supplied as standard with the Wenzel PointMaster V5 foundation scanning module. Additional application modules can be added for reverse engineering or verification of scan data against nominal CAD data.