CN107796545B - Polarized light non-contact toughened glass surface stress measuring device and measuring method - Google Patents
Polarized light non-contact toughened glass surface stress measuring device and measuring method Download PDFInfo
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- G—PHYSICS
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- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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Abstract
Description
技术领域Technical field
本发明属于玻璃应力检测技术领域，具体涉及一种偏振光非接触式钢化玻璃表面应力测量装置及应力测量方法。The invention belongs to the technical field of glass stress detection, and specifically relates to a polarized light non-contact tempered glass surface stress measurement device and a stress measurement method.
背景技术Background technique
我国是世界上最大的玻璃生产国之一，2017年1~8月中国钢化玻璃产量为3.83亿平方米，同比增长6.8%。玻璃的表面应力不仅是玻璃的强度指标，同时也是最重要的安全学性能。不论是在玻璃的生产阶段，还是使用阶段其表面应力的检测都是十分重要且必不可少的环节。my country is one of the largest glass producers in the world. From January to August 2017, China's tempered glass output was 383 million square meters, a year-on-year increase of 6.8%. The surface stress of glass is not only the strength index of glass, but also the most important safety performance. Whether in the production stage of glass or in the use stage, the detection of surface stress is a very important and essential link.
目前主流的应力测试仪器是接触式的，即GASP应力测试仪，也称作掠射角表面应力计，是一种用来检测玻璃产品表面应力的便携式光学仪器。GASP应力仪基于一种光弹性测量原理，通过光穿过玻璃表面来换算。操作员滴一滴测试溶剂在玻璃上，确保光学接触。GASP应力仪置于液体上，穿过棱镜的光与玻璃表面形成一临界角。通过GASP应力仪的目镜可以观测到，也出现与角度相关的十字准线。读出角度，然后参考随机的角度应力换算表，即可换算出应力值，角度越大，应力值越大。The current mainstream stress testing instrument is contact type, namely GASP stress tester, also known as grazing angle surface stress meter, which is a portable optical instrument used to detect surface stress of glass products. The GASP stress meter is based on a photoelastic measurement principle, which is converted by light passing through the glass surface. The operator places a drop of test solvent on the glass, ensuring optical contact. The GASP stress meter is placed on the liquid, and the light passing through the prism forms a critical angle with the glass surface. Visible through the eyepiece of the GASP stress meter, angle-dependent crosshairs also appear. Read the angle, and then refer to the random angle stress conversion table to convert the stress value. The greater the angle, the greater the stress value.
然而这种应力测试仪具有一定的局限性，其局限性体现在以下几个方面：第一，测试条件的局限性，即GASP应力仪需要放置在钢化玻璃表面（保证与其接触）才能进行测试，在不能保证接触的时候不能进行测试；第二，读取测试结果的局限性，GASP应力测试仪需要人工读数，人工读数时很可能产生测量误差，影响测试结果；第三，测试时间的局限性，利用GASP应力测试仪测量钢化玻璃表面应力的时候需要滴液、放置仪器至钢化玻璃表面、人工读数、换算应力值等操作，而这些操作都需要一定的时间来完成（人工操作失误的时候，还需要重新花费时间操作）。However, this stress tester has certain limitations, which are reflected in the following aspects: First, the limitations of the test conditions, that is, the GASP stress tester needs to be placed on the surface of tempered glass (to ensure contact with it) to conduct the test. Testing cannot be performed when contact cannot be guaranteed; secondly, the limitation of reading test results. The GASP stress tester requires manual reading. Manual reading is likely to produce measurement errors and affect the test results; thirdly, the limitation of test time When using the GASP stress tester to measure the surface stress of tempered glass, you need to drop liquid, place the instrument on the surface of the tempered glass, perform manual readings, convert stress values, etc., and these operations take a certain amount of time to complete (when manual operation errors occur, Still need to spend time to operate again).
发明内容Contents of the invention
本发明为了解决现有技术中的不足之处，提供一种非接触式、测试准确、操作方便的偏振光非接触式钢化玻璃表面应力测量装置及应力测量方法。In order to solve the deficiencies in the prior art, the present invention provides a polarized light non-contact tempered glass surface stress measurement device and stress measurement method that is non-contact, accurate in testing and easy to operate.
为解决上述技术问题，本发明采用如下技术方案：一种偏振光非接触式钢化玻璃表面应力测量装置，包括计算机和机架，机架的上表面呈水平状态，机架顶部的左侧垂直固定有安装架，机架顶部的右侧沿左右方向滑动设置固定架，安装架上固定有万能角度尺和光斑分析仪，其中万能角度尺的直角尺向右延伸设置，直角尺上固定有激光发射器，激光发射器倾斜设置且激光发射器的发射端口向下设置，激光发射器的发射端口固定有偏振器，固定架上固定有光斑接收屏，所述的计算机通过数据线与光板分析仪的数据端口连接。In order to solve the above technical problems, the present invention adopts the following technical solution: a polarized light non-contact tempered glass surface stress measuring device, including a computer and a rack. The upper surface of the rack is in a horizontal state, and the left side of the top of the rack is vertically fixed. There is an installation frame, and a fixed frame is slidably installed on the right side of the top of the rack in the left and right direction. A universal angle ruler and a spot analyzer are fixed on the installation frame. The universal angle ruler has a right-angle ruler extending to the right, and a laser emitter is fixed on the right-angle ruler. The laser transmitter is tilted and the transmit port of the laser transmitter is set downward. The transmit port of the laser transmitter is fixed with a polarizer, and the light spot receiving screen is fixed on the fixed frame. The computer communicates with the light plate analyzer through a data line. Data port connection.
机架前侧沿左右方向设有刻度。There are scales on the front side of the rack along the left and right directions.
一种偏振光非接触式钢化玻璃表面应力测量装置进行应力测量的方法，包括以下步骤：A method for measuring stress using a polarized light non-contact tempered glass surface stress measuring device, including the following steps:
（1）、准备n块试验用钢化玻璃和一块待测钢化玻璃，其中n块试验用钢化玻璃的表面应力分别为σ1、σ2、σ3、σ4、σ5……σn，其中σ1、σ2、σ3、σ4、σ5……σn为已知数值，且σ2-σ1=σ3-σ2=……σn-σn-1，待测钢化玻璃的表面应力未知；(1) Prepare n pieces of tempered glass for testing and one piece of tempered glass to be tested. The surface stresses of the n pieces of tempered glass for testing are σ 1 , σ 2 , σ 3 , σ 4 , σ 5 ……σ n respectively, where σ 1 , σ 2 , σ 3 , σ 4 , σ 5 ……σ n are known values, and σ 2 -σ 1 =σ 3 -σ 2 =……σ n -σ n-1 , the tempered glass to be tested The surface stress is unknown;
（2）、在不同角度θ、相同的L值的情况下测量n块试验用钢化玻璃，得出测试数据，其中θ为万能角度尺上的角度值，L为激光在钢化表面反射点与固定架之间的水平距离；(2) Measure n pieces of tempered glass for testing at different angles θ and the same L value to obtain test data, where θ is the angle value on the universal angle ruler, and L is the laser reflection point on the tempered surface and the fixed The horizontal distance between racks;
（3）、分析测试数据：根据在不同角度θ值的情况下测得的测试数据制作函数曲线，并利用origin数据分析软件对函数曲线进行拟合分析，得出钢化玻璃的表面应力σ与光斑位置S (x,y)的函数关系；(3) Analyze the test data: Make a function curve based on the test data measured at different angles and θ values, and use origin data analysis software to fit and analyze the function curve to obtain the surface stress σ and light spot of the tempered glass. Functional relationship of position S (x,y) ;
（4）、将不同角度θ下拟合分析出的钢化玻璃表面应力σ与光斑位置S (x,y)的函数关系存入计算机，整理所有分析后的数据，建立数据库；(4). The functional relationship between the tempered glass surface stress σ and the spot position S (x, y) calculated by fitting and analysis at different angles θ Store it in the computer, organize all analyzed data, and establish a database;
（5）、对待测钢化玻璃进行表面应力测试，调整光斑接收屏与激光在钢化表面反射点之间的水平距离为Lx，引进比例系数k= L/Lx， 函数调整为，利用钢化玻璃表面应力σ与光斑位置S (x,y)的函数关系/>，对待测钢化玻璃进行测试，将测试所得数据输入计算机，得出待测钢化玻璃的表面应力。(5) Conduct a surface stress test on the tempered glass to be tested, adjust the horizontal distance between the light spot receiving screen and the laser reflection point on the tempered surface to L x , introduce the proportional coefficient k= L/L x , and adjust the function to , using the functional relationship between the tempered glass surface stress σ and the spot position S (x, y)/> , test the tempered glass to be tested, input the test data into the computer, and obtain the surface stress of the tempered glass to be tested.
在不同角度θ的情况下测量n块试验用钢化玻璃，得出测试数据的方法包括：Measure n pieces of tempered glass for testing at different angles θ, and the methods for obtaining test data include:
选取θ1、θ2 ……θm共m个角度值作为测量的角度值，并且θ2-θ1=θ3-θ2=……θm-θm-1，依次选取角度值θ1、θ2 ……θm，并且分别进行n块试验用钢化玻璃的测试，得出测试数据。Select a total of m angle values 1 , θ 2 ...θ m as the measured angle values, and θ 2 -θ 1 =θ 3 -θ 2 =...θ m -θ m-1 , and select the angle value θ 1 in turn , θ 2 ... θ m , and conduct tests on n pieces of tempered glass for testing respectively, and obtain the test data.
当万能角度尺上的角度值为θ1时，利用应力数据测试方法对n块试验用钢化玻璃依次进行测试，得出测试数据：α1=（A1 、A2、A3、……An）。When the angle value on the universal angle ruler is θ 1 , use the stress data testing method to test n pieces of tempered glass for testing in sequence, and obtain the test data: α 1 = (A 1 , A 2 , A 3 ,...A n ).
所述的应力数据测试方法具体包括以下步骤包括：The stress data testing method specifically includes the following steps:
（a）、将表面应力为σ1的试验用钢化玻璃水平放置在机架的上表面；(a) Place the tempered glass for testing with a surface stress of σ 1 horizontally on the upper surface of the frame;
（b）、旋转万能角度尺上的角度调节旋钮至角度θ1，此时光斑接收屏距离激光在钢化玻璃表面反射点的水平距离为L1；(b) Rotate the angle adjustment knob on the universal angle ruler to angle θ 1. At this time, the horizontal distance between the spot receiving screen and the laser reflection point on the tempered glass surface is L 1 ;
（c）、取下偏振器，打开激光发射器及光斑分析仪，激光发射器发射光线经钢化玻璃表面反射到光斑接收屏上，光斑分析仪分析光斑接收屏上光斑位置，并且光斑分析仪将光斑位置通过数据线传输给计算机，通过计算机记录光线经过所述试验用钢化玻璃表面反射到光斑接收屏的光斑位置S1（x1,y1），关闭激光发射器及光斑分析仪；(c) Remove the polarizer, turn on the laser transmitter and spot analyzer. The light emitted by the laser transmitter is reflected on the spot receiving screen through the tempered glass surface. The spot analyzer analyzes the spot position on the spot receiving screen, and the spot analyzer will The light spot position is transmitted to the computer through the data line, and the computer records the light spot position S 1 (x 1 , y 1 ) of the light spot receiving screen after the light is reflected from the surface of the test tempered glass, and turns off the laser transmitter and light spot analyzer;
（d）、重新将偏振器装配在激光发射器上，打开激光发射器及光斑分析仪，通过计算机记录光线经过所述试验用钢化玻璃表面反射到光斑接收屏的光斑位置S1'(x1',y1')，关闭激光发射器及光斑分析仪；(d) Reinstall the polarizer on the laser transmitter, turn on the laser transmitter and spot analyzer, and record the spot position S 1 '(x 1 ',y 1 '), turn off the laser transmitter and spot analyzer;
（e）、将表面应力σ1、角度θ1、光斑位置S1（x1,y1）、光斑位置S1'(x1',y1')、水平距离L1记为测试数据A1；(e). Record the surface stress σ 1 , angle θ 1 , spot position S 1 (x 1 , y 1 ), spot position S 1 '(x 1 ', y 1 '), and horizontal distance L 1 as test data A. 1 ;
（g）、在θ1、L1不变的条件下测试表面应力为σ2的试验用钢化玻璃，按照步骤（a）-（e）的操作方法测试表面应力为σ2的试验用钢化玻璃，并记录光斑位置S2（x2,y2）和S2'(x2',y2')，将表面应力σ2、角度θ1、光斑位置S2（x2,y2）、光斑位置S2'(x2',y2')、水平距离L1记录为测试数据A2；(g). Test the tempered glass for testing with surface stress σ 2 under the condition that θ 1 and L 1 remain unchanged. Test the tempered glass for testing with surface stress σ 2 according to the operation method of steps (a)-(e). , and record the spot positions S 2 (x 2 , y 2 ) and S 2 ' (x 2 ', y 2 '), and compare the surface stress σ 2 , angle θ 1 , spot position S 2 (x 2 , y 2 ), The light spot position S 2 '(x 2 ', y 2 ') and the horizontal distance L 1 are recorded as test data A 2 ;
（h）、按照步骤（a）-（e），在θ1、L1不变的条件下，依次测试其余的试验用钢化玻璃（即表面应力为σ3、σ4、σ5……σn的试验用钢化玻璃），记录测试数据A3、A4、A5……An，得出α1=（A1 、A2、A3、……An）。(h), follow steps (a)-(e), and under the condition that θ 1 and L 1 remain unchanged, test the remaining tempered glass for testing in sequence (that is, the surface stress is σ 3 , σ 4 , σ 5 ...σ n test using tempered glass), record the test data A 3 , A 4 , A 5 ...A n , and obtain α 1 = (A 1 , A 2 , A 3 ,...A n ).
采用上述技术方案，本发明具有以下有益效果：本发明与现有技术相比所具有的有益效果是测试方法独特，不同于GASP的光弹性测试法，创新了一套新的钢化玻璃表面应力测试方法，本发明是一种非接触式钢化玻璃表面应力测量仪，测试的时候仪器本身可以不接钢化玻璃，不需要人工读数换算应力，只需要将前期的数据分析处理存入计算机，后期测量钢化玻璃的表面应力省时省力，测试结果直接由计算机显示，测量速度比GASP应力仪测量速度更快，更适合工厂流水线在线检测。本发明在使用的时候比较容易，将前期测试所得出的函数存入数据库，后期测试时直接输入测试数据即可得出应力测试结果，本发明使用的时候能耗较低，节能环保，降低生产、测量成本。Adopting the above technical solution, the present invention has the following beneficial effects: Compared with the existing technology, the beneficial effect of the present invention is that the test method is unique, different from the photoelastic test method of GASP, and a new set of tempered glass surface stress tests are created Method, the present invention is a non-contact tempered glass surface stress measuring instrument. The instrument itself does not need to be connected to the tempered glass during the test. It does not require manual reading to convert the stress. It only needs to store the preliminary data analysis and processing in the computer, and later measure the tempered glass. The surface stress of glass saves time and effort, and the test results are directly displayed by the computer. The measurement speed is faster than the GASP stress meter, and it is more suitable for online inspection of factory assembly lines. The present invention is relatively easy to use. The function obtained from the early test is stored in the database. In the later test, the test data can be directly input to obtain the stress test result. The present invention consumes less energy when used, is energy-saving and environmentally friendly, and reduces production. , measurement cost.
附图说明Description of the drawings
图1是本发明的结构示意图。Figure 1 is a schematic structural diagram of the present invention.
具体实施方式Detailed ways
如图1所示，本发明的一种偏振光非接触式钢化玻璃表面应力测量装置，包括计算机1和机架2，机架2的上表面呈水平状态，机架2顶部的左侧垂直固定有安装架3，机架2顶部的右侧沿左右方向滑动设置固定架4，安装架3上固定有万能角度尺5和光斑分析仪6，其中万能角度尺5的直角尺向右延伸设置，直角尺上固定有激光发射器7，激光发射器7倾斜设置且激光发射器7的发射端口向下设置，激光发射器7的发射端口固定有偏振器8，固定架4上固定有光斑接收屏9，所述的计算机1通过数据线与光板分析仪的数据端口连接。机架2前侧沿左右方向设有刻度10。As shown in Figure 1, a polarized light non-contact tempered glass surface stress measuring device of the present invention includes a computer 1 and a rack 2. The upper surface of the rack 2 is in a horizontal state, and the left side of the top of the rack 2 is fixed vertically. There is a mounting bracket 3. The right side of the top of the rack 2 is slidably provided with a fixing bracket 4 in the left and right direction. A universal angle ruler 5 and a spot analyzer 6 are fixed on the mounting bracket 3. The right-angled ruler of the universal angle ruler 5 extends to the right. A laser transmitter 7 is fixed on the right-angle ruler. The laser transmitter 7 is tilted and the emission port of the laser transmitter 7 is set downward. A polarizer 8 is fixed on the emission port of the laser transmitter 7. A light spot receiving screen is fixed on the fixing frame 4. 9. The computer 1 is connected to the data port of the light plate analyzer through a data cable. The front side of the frame 2 is provided with scales 10 along the left and right directions.
利用偏振光非接触式钢化玻璃表面应力测量装置进行应力测量的方法，包括以下步骤：The method of stress measurement using polarized light non-contact tempered glass surface stress measurement device includes the following steps:
（1）、准备120块试验用钢化玻璃和一块待测钢化玻璃，其中120块试验用钢化玻璃的表面应力分别为σ1、σ2、……σ120，其中σ1、σ2、……σ120为已知数值，且σ2-σ1=σ3-σ2=……σ120-σ119，待测钢化玻璃的表面应力未知；(1) Prepare 120 pieces of tempered glass for testing and one piece of tempered glass to be tested. The surface stresses of the 120 pieces of tempered glass for testing are σ 1 , σ 2 ,...σ 120 , among which σ 1 , σ 2 ,... σ 120 is a known value, and σ 2 -σ 1 =σ 3 -σ 2 =...σ 120 -σ 119 , and the surface stress of the tempered glass to be measured is unknown;
（2）、在不同角度θ、相同的L值的情况下测量120块试验用钢化玻璃，得出测试数据，其中θ为万能角度尺5上的角度值，L为光斑接收屏与固定架之间的水平距离；(2) Measure 120 pieces of test tempered glass at different angles θ and the same L value to obtain test data, where θ is the angle value on the universal angle ruler 5, and L is the distance between the light spot receiving screen and the fixed frame. the horizontal distance between;
（3）、分析测试数据：根据在不同角度θ值的情况下测得的测试数据制作函数曲线，并利用origin数据分析软件对函数曲线进行拟合分析，得出钢化玻璃的表面应力σ与光斑位置S (x,y)的函数关系；(3) Analyze the test data: Make a function curve based on the test data measured at different angles and θ values, and use origin data analysis software to fit and analyze the function curve to obtain the surface stress σ and light spot of the tempered glass. Functional relationship of position S (x,y) ;
（4）、将不同角度θ下拟合分析出的钢化玻璃表面应力σ与光斑位置S (x,y)的函数关系存入计算机1，整理所有分析后的数据，建立数据库；(4). The functional relationship between the tempered glass surface stress σ and the spot position S (x, y) calculated by fitting and analysis at different angles θ Store in computer 1, organize all analyzed data, and establish a database;
（5）、对待测钢化玻璃进行表面应力测试，调整光斑接收屏与激光在钢化表面反射点之间的水平距离为Lx，引进比例系数k= L/Lx， 函数调整为，利用钢化玻璃表面应力σ与光斑位置S (x,y)的函数关系/>，对待测钢化玻璃进行测试，将测试所得数据输入计算机，得出待测钢化玻璃的表面应力。(5) Conduct a surface stress test on the tempered glass to be tested, adjust the horizontal distance between the light spot receiving screen and the laser reflection point on the tempered surface to L x , introduce the proportional coefficient k= L/L x , and adjust the function to , using the functional relationship between the tempered glass surface stress σ and the spot position S (x, y)/> , test the tempered glass to be tested, input the test data into the computer, and obtain the surface stress of the tempered glass to be tested.
在不同角度θ的情况下测量120块试验用钢化玻璃，得出测试数据的方法包括：选取θ1、θ2 ……θ6共6个角度值作为测量的角度值，并且θ2-θ1=θ3-θ2=……θ6-θ5，依次选取角度值θ1、θ2 ……θ6，并且分别进行120块试验用钢化玻璃的测试，得出测试数据。Measure 120 pieces of test tempered glass at different angles θ. The method to obtain the test data includes: selecting a total of 6 angle values 1 , θ 2 ... θ 6 as the measured angle values, and θ 2 - θ 1 =θ 3 -θ 2 =……θ 6 -θ 5 , select the angle values θ 1 , θ 2 ……θ 6 in sequence, and conduct tests on 120 pieces of tempered glass for testing to obtain the test data.
当万能角度尺5上的角度值为θ1时，利用应力数据测试方法对120块试验用钢化玻璃依次进行测试，得出测试数据：α1=（A1 、A2、A3、……A120），β1=（B1、B2、B3……B120），γ1=（C1、C2、C3……C120）。When the angle value on the universal angle ruler 5 is θ 1 , use the stress data testing method to test 120 pieces of tempered glass for testing in sequence, and obtain the test data: α 1 = (A 1 , A 2 , A 3 ,… A 120 ), β 1 = (B 1 , B 2 , B 3 …… B 120 ), γ 1 = (C 1 , C 2 , C 3 …… C 120 ).
所述的应力数据测试方法具体包括以下步骤包括：The stress data testing method specifically includes the following steps:
（a）、将表面应力为σ1的试验用钢化玻璃水平放置在机架2的上表面；(a) Place the tempered glass for testing with a surface stress of σ 1 horizontally on the upper surface of the frame 2;
（b）、旋转万能角度尺5上的角度调节旋钮至角度θ1，此时光斑接收屏9距离激光在钢化玻璃表面反射点的水平距离为L1；(b) Rotate the angle adjustment knob on the universal angle ruler 5 to angle θ 1. At this time, the horizontal distance between the spot receiving screen 9 and the laser reflection point on the tempered glass surface is L 1 ;
（c）、取下偏振器8，打开激光发射器7及光斑分析仪6，激光发射器7发射光线经钢化玻璃表面反射到光斑接收屏9上，光斑分析仪6分析光斑接收屏9上光斑位置，并且光斑分析仪6将光斑位置通过数据线传输给计算机1，通过计算机1记录光线经过所述试验用钢化玻璃表面反射到光斑接收屏9的光斑位置S1（x1,y1），关闭激光发射器7及光斑分析仪6；(c) Remove the polarizer 8, turn on the laser transmitter 7 and the spot analyzer 6. The laser transmitter 7 emits light and is reflected on the surface of the tempered glass to the spot receiving screen 9. The spot analyzer 6 analyzes the spot on the spot receiving screen 9. position, and the spot analyzer 6 transmits the spot position to the computer 1 through the data line, and the computer 1 records the spot position S 1 (x 1 , y 1 ) of the light reflected from the surface of the test tempered glass to the spot receiving screen 9 , Turn off the laser transmitter 7 and spot analyzer 6;
（d）、重新将偏振器8装配在激光发射器7上，打开激光发射器7及光斑分析仪6，通过计算机1记录光线经过所述试验用钢化玻璃表面反射到光斑接收屏9的光斑位置S1'(x1',y1')，关闭激光发射器7及光斑分析仪6；(d) Reinstall the polarizer 8 on the laser transmitter 7, turn on the laser transmitter 7 and the spot analyzer 6, and record the spot position of the light spot receiving screen 9 after the light is reflected from the surface of the test tempered glass through the computer 1 S 1 '(x 1 ', y 1 '), turn off the laser transmitter 7 and the spot analyzer 6;
（e）、将表面应力σ1、角度θ1、光斑位置S1（x1,y1）、光斑位置S1'(x1',y1')、水平距离L1记为测试数据A1；(e). Record the surface stress σ 1 , angle θ 1 , spot position S 1 (x 1 , y 1 ), spot position S 1 '(x 1 ', y 1 '), and horizontal distance L 1 as test data A. 1 ;
（g）、在θ1、L1不变的条件下测试表面应力为σ2的试验用钢化玻璃，按照步骤（a）-（e）的操作方法测试表面应力为σ2的试验用钢化玻璃，并记录光斑位置S2（x2,y2）和S2'(x2',y2')，将表面应力σ2、角度θ1、光斑位置S2（x2,y2）、光斑位置S2'(x2',y2')、水平距离L1记录为测试数据A2；(g). Test the tempered glass for testing with surface stress σ 2 under the condition that θ 1 and L 1 remain unchanged. Test the tempered glass for testing with surface stress σ 2 according to the operation method of steps (a)-(e). , and record the spot positions S 2 (x 2 , y 2 ) and S 2 ' (x 2 ', y 2 '), and compare the surface stress σ 2 , angle θ 1 , spot position S 2 (x 2 , y 2 ), The light spot position S 2 '(x 2 ', y 2 ') and the horizontal distance L 1 are recorded as test data A 2 ;
（h）、按照步骤（a）-（e），在θ1、L1不变的条件下，依次测试其余的试验用钢化玻璃（即表面应力为σ3、σ4、……σ120的试验用钢化玻璃），记录测试数据A3、A4、……A120，得出α1=（A1 、A2、A3、……A120）；(h), follow steps (a)-(e), and under the condition that θ 1 and L 1 remain unchanged, test the remaining tempered glasses for testing in sequence (that is, those with surface stresses of σ 3 , σ 4 ,...σ 120 Tempered glass for testing), record the test data A 3 , A 4 ,...A 120 , and obtain α 1 = (A 1 , A 2 , A 3 ,...A 120 );
本实施例并非对本发明的形状、材料、结构等作任何形式上的限制，凡是依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均属于本发明技术方案的保护范围。This embodiment does not place any formal restrictions on the shape, material, structure, etc. of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention belong to the protection of the technical solution of the present invention. scope.
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