针对标准核燃料组件竖直状态下几何参数溯源需求,研制了一种标准核燃料组件几何轮廓校准装置。该装置以空间坐标测量为理念,利用多路接触式传感器作为轮廓测量采集单元,结合测量工作台高度位置获得轮廓坐标。通过直线度及扭转度测量与误差补偿,进一步提高了几何轮廓测量精度;并使用集成运动控制和专用测量软件,实现了标准核燃料组件几何轮廓参数(直线度、扭转度、垂直度、平行度)的自动检测。通过分析及实验验证,几何轮廓参数中直线度和平行度测量标准不确定度为0.01 mm,扭转度测量标准不确定度为0.007 mm,垂直度测量标准不确定度为0.017 mm,说明该装置能够满足标准核燃料组件的溯源需求。
Abstract
The standard nuclear fuel assembly is used for the on-site calibration of the nuclear fuel assembly measuring instrument. For the traceability requirements of geometric parameters of standard nuclear fuel assemblies, a geometric profile calibration device for standard nuclear fuel assembly is developed. Based on the concept of spatial coordinate measurement, the device uses multi-channel contact sensors as the profile measurement unit, and obtains the profile coordinates by combining the height position of the measuring table. Through straightness and torsion measurement and error compensation, the precision of geometric contour measurement is further improved. By integrating motion control and special measurement software, the standard nuclear fuel assembly geometric profile parameters (straightness, torsion, perpendicularity, parallelism) can be automatically detected. Through analysis and test, it is verified that the standard uncertainty of straightness and parallelism is 0.01 mm, the standard uncertainty of torsion is 0.007 mm and the standard uncertainty of perpendicularity is 0.017 mm. The above data show that the device can meet the traceability requirements of standard nuclear fuel assemblies.
关键词
几何量计量 /
核燃料组件 /
几何轮廓 /
校准 /
直线度 /
误差补偿
Key words
geometric measurement /
nuclear fuel assembly /
geometric profile;calibration /
straightness /
err compensation
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基金
国家十三五技术基础科研项目(JSJL2016205B094)
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