Optical measurement

Sylvac offers the SCAN machine series for non-contact optical measurement of cylindrically manufactured parts. The workpiece is clamped and a high-resolution camera scans it at a speed of 100 mm/s. The resulting 2D image is then measured and evaluated by the software. The resulting 2D image is then measured and evaluated by the software, and the measurement is also logged. Any points to be measured can be defined in the software. There are more than 150 different measurement functions to choose from. The repeat accuracy of the measurements is 0.5 µm. Workpieces from 0.2 to 145 mm in diameter and up to 1280 mm in length can be measured.

Thanks to the optional swivel drive, the camera can also be tilted, which is necessary for measuring threads, for example. Once set up, a new workpiece can be measured and evaluated within seconds. All the operator has to do is press a button on the machine. Compared to traditional measuring methods, which require various measuring utensils and everything has to be measured by hand, this results in a time saving of over 90%.

The single and dual-axis controllers of the "Accelnet Plus" series from Copley Controls are used as the drive. This servo drive is available as a module for PCB mounting, among other things, and is particularly suitable for integration on a proprietary PCB board. The most important features include the diverse evaluation and combination options of the measuring systems as well as the support of various motor technologies. The Accelnet Plus supports two measuring systems per axis, which can be analog or digital, relative or absolute. Brushed and brushless linear and rotary motors are supported. The integration of the motors is very simple and convenient thanks to the CME2 tool. Another core feature of the Accelnet Plus is the output of trigger pulses, which go directly to the camera to trigger the image acquisition synchronously with the movement or the actual position. One line is recorded per trigger impulse, and the combination of all lines results in the overall image. 
Copley also offers free function libraries for Visualstudio (.NET) for the complete drive controller series, with which the drive controller can be controlled via the Ethernet port of a normal computer (Ethercat DS402). Thanks to the function libraries, no in-depth knowledge of Ethercat is required.