CAJ | 학술논문

针对传统测量平板玻璃厚度的不足，基于光的折射原理，提出一种双路激光对称透射法，设计了在线测量平板玻璃厚度的装置，以线激光做光源，以对称平面镜组为光路转换装置，将对称分布的光路调制为两束相互平行的线激光，线阵CCD传感器作为视觉探测工具，并针对测量图像的特点，选定背景与目标的过渡区域段的灰度值，作为单束线光带图像的边界阈值，使用改进灰度重心法提取线光带中心像素。通过对待测样品的实验检测，结果表明该方法测量精确可达0.1 mm，该精度符合玻璃生产线中对其厚度检测标准的要求。由此证明了该方法的可行性，并具有良好的实用价值。
침대전통측량평판파리후도적불족，기우광적절사원리，제출일충쌍로격광대칭투사법，설계료재선측량평판파리후도적장치，이선격광주광원，이대칭평면경조위광로전환장치，장대칭분포적광로조제위량속상호평행적선격광，선진CCD전감기작위시각탐측공구，병침대측량도상적특점，선정배경여목표적과도구역단적회도치，작위단속선광대도상적변계역치，사용개진회도중심법제취선광대중심상소。통과대대측양품적실험검측，결과표명해방법측량정학가체0.1 mm，해정도부합파리생산선중대기후도검측표준적요구。유차증명료해방법적가행성，병구유량호적실용개치。
For the shortcomings of the traditional flat glass thickness measurement, one method which was based on the principle of light refraction, with the dual laser symmetrical transmission method was proposed, and the whole measured system of on-line measurement of flat glass thickness was designed, in which line laser was the light source and the symmetry plane of mirrors were the optical path switching device to modulate the symmetrically distributed optical paths into two parallel line lasers, and a linear array CCD sensor was set as a visual exploration tool, meanwhile, the grey level of the transition area of the background and target was selected as the boundary threshold value of the single beam line’s light band image according to the characteristics of captured image, the algorithm for obtaining light band center pixel was made modified gray gravity. After the experiment of the measurement on the sample glass thickness, the results show that the accuracy of these measurement methods can reach to 0.1 mm. The measuring accuracy is correspond with the requirements of the testing standards. Therefore the feasibility is verified, that have a good practical value.