System and method for glass processing and stress measurement
作者： Bret Cannon , Mohammad Khaleel , Chester Shepard
DOI:
关键词: Thermal 、 Polarization (waves) 、 Scattered light 、 Laser beams 、 Toughened glass 、 Stress measurement 、 Optics 、 Materials science 、 Glass manufacturing 、 Bragg's law
摘要: A non-destructive and non-contact method for measuring stress at the mid-plane of tempered glass plates that uses Bragg scattering from a pair thermal gratings. The gratings are formed by parallel writing beams laser light retroreflected through glass. polarization state delayed beam scatters both these is measured, change in doubly scattered with separation between two correlated to in-plane stress. Systems techniques take measurements control manufacturing process also disclosed.
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