ilis > product sheet > StrainMatic M4/120 StrainMatic M4/120 ™ Imaging polarimeter systems for the automatic measurement of residual stress in transparent materials The fracture strength and processing ability of glass and plastic products are strongly determined by inherent mechanical stresses. But even small residual stresses influence the optical properties, an undesirable effect in many applications. Therefore, constant testing of residual stress is a very important part of quality control. The StrainMatic™ M4 series automates the measurement and evaluation of the stress birefringence and enables a fast and exact determination of residual stresses and their spatial distribution. Your Benefits Objective and reliable results Fast and easy operation Improvement in quality by on-site measurement Traceability by automatic archival of all results Cost reduction by optimizing the production process StrainMatic M4/120.14 M4/120.50 M4/120.33 ™ Operation external PC with touch screen, mouse, keyboard Illumination LED array Image acquisition matrix camera with telecentric lens Working distance approx. 250 mm Field of view approx. 96 x 72 mm (M4/120.14) approx. 90 x 76 mm (M4/120.50) approx. 120 mm Ø (M4/120.33) Image resolution 1392 x 1040 px (M4/120.14) 2448 x 2050 px (M4/120.50) 2000 x 2000 px (M4/120.33) Spatial resolution approx. 0,07 mm (M4/120.14) approx. 0,04 mm (M4/120.50) approx. 0,06 mm (M4/120.33) Measuring results polarization angle (°) optical retardation (nm) normalized retardation (nm/cm, nm/mm) integrated stress (MPa) Measuring range approx. 0 to 72 nm (standard) approx. 0 to 290 nm (uni- or multi-directional) approx. 0 to 2900 nm (with HOD module) Measuring time typical < 45 seconds Power supply 100-240 V AC, 45-65 Hz, 500 VA Dimensions approx. 950 x 450 x 475 mm (H/W/D), without operating station Weight approx. 65 kg Optical materials and components (e.g. fused silica, crystals, lenses, prisms) Tube glass and related products (e.g. lab glass, pharmaceutical containers) Lighting glass (e.g. glass bulbs, glass-metal transitions) Custom adaptations and special versions are possible on request. No responsibility is taken for the correctness of the information. All information is subject to change without prior notice. Version 10/2014. © 2014 ilis gmbh, all rights reserved. Product website: www.ilis.de/en/strainmatic.html ilis gmbh Konrad-Zuse-Straße 22 D-91052 Erlangen Fon +49 (9131) 9 74 77 90 Fax +49 (9131) 9 74 77 99 info@ilis.de www.ilis.de Technical Data Application Examples