Measuring method for measuring stress on glass body based on light interference method

Abstract

The invention discloses a measuring method for measuring stress on a glass body based on a light interference method. The method specifically comprises the following steps that 1, a reflecting mirror is arranged above the axis of a gland, an included angle of 45 degrees is formed between the reflecting mirror and the horizontal plane, a reading microscope is arranged above the reflecting mirror, and a sodium light source is arranged in the horizontal incidence direction of the reflecting mirror; 2, a U-shaped weight is arranged on a chassis; 3, the sodium light source is utilized for emitting sodium yellow light, the sodium yellow light irradiates the reflecting light, the light vertically enters a plano-convex lens after being reflected in a 45-degree mode, the light reflected through the lower surface of the plano-convex lens and the upper surface of plate glass generates interference fringes, then radiuses corresponding to dark rings of the interference fringes are obtained by means of the reading microscope arranged above the reflecting mirror, and finally the stress on the plate glass is obtained through stress analysis and plate theoretical calculation. According to the measuring method for measuring stress on the glass body based on the light interference method, the principle is simple, the measurement repeatability is good, a measuring system is easy to operate, and lossless fast measurement is achieved.

Description

technical field [0001] The invention belongs to the technical field of applied optical equipment, and relates to a measurement method for measuring glass body stress based on an optical interference method. Background technique [0002] Controlling stress is an extremely important part of the glass production process, and methods of applying appropriate heat treatment to control stress are well known to glass technicians. However, the traditional empirical estimation has become less and less suitable for the quality requirements of glass products in today's society. In order to realize the comprehensive quality control of glass conveniently and quickly at low cost, the stress detection method must be adopted to stabilize the production and product quality, so it is very necessary and meaningful to measure the stress of glass accurately. [0003] At present, the methods for measuring the stress of optical glass mainly include: interference color method, Senamont quantitative...

AI Technical Summary

Problems solved by technology

The interferochromatic method can only measure the stress qualitatively and semi-qualitatively; the Senamont quantitative measurement method requires that the principal stress direction of the glass is at a 45° angle to the polarization direction, and the system requires a high precision of the quarter-wave plate; the spectral scanning method test Complex system and high cost

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