The Use description of Glass surface stress meter   1、Name（China/English）: 玻璃表面應力儀 Glass surface stress meter 2、Model:  FSM-6000LE 3、Place of Origin/Manufacturer:   JAPAN    Orihara Making Co Ltd 4、Logo:    ORIHARA 5、Structure composition:   1).CCD  2).LEDSodium lamp 3).Imaging system 4).Prism 5).Polarized light system 6、Working principle:  FSM-6000LE,Glass surface stress gauge is used to measure the surface stress of chemical and physical strengthened glass.。The machine uses a special light source (LED light) to produce plane polarized light,By letting the light travel along the surface of the glass, the stress on the surface and the depth of the stress layer are calculated by the light elastic test method. The data is printed out in the form of a map. 7、Main function : Identification of surface stress and stress depth of chemically or physically strengthened glass. 8、Equipment use: Qualitative and quantitative analysis of stress and stress depth on the surface of TP cover glass. 9、Technical parameter and index Measurement range：0-1000Mpa Measurement accuracy：±20Mpa Measurement range (stress depth):0-200μm Accuracy (stress depth): ±5μm Light source: dedicated LED wavelength of 592 ±2nm Measurement object：Chemically strengthened glass,Physical strengthened glass Measurement of shape: flat glass 10 x 10mm or above Prism：S-LAL-10 ND=1.72 PC：Dedicated (OS, measurement software has been installed OS：Windows XP Professional Light source: FSM-LED590 Power Supply：AC220V±5V 5A10、Photo   11、the use of the laboratory of Wuhan University of Technology。