冲击试样缺口投影仪标准比对样板缺口半径的校准方法及测量不确定度分析

Reach on calibration method for the notch radius of the impact specimen notch projector Standard matchtemplate and analysis of measurement uncertainty

针对金属材料冲击试验缺口加工中冲击试样缺口投影仪的计量现状,介绍了冲击试样缺口投影仪的结构和标准比对样板V形、U形缺口圆弧半径的技术要求,并提出了冲击试样缺口投影仪标准比对样板详细的测量标准设备和校准方法并做测量不确定度分析,实现了冲击试样缺口投影仪标准比对样板缺口半径的量值溯源和计量校准的要求。

Impact of metal material impact test gap processing sample gap projector measurement of the status quo, this paper introduces the structure of the impact test specimen gap projector and Standard matchtemplate v-shaped, u-shaped gap arc radius of technical requirements, and puts forward the impact test specimen gap projector Standard matchtemplate detailed measure equipment and analysis of the uncertainty of measurement and calibration methods, realized the impact test specimen gap projector Standard matchtemplate quantity traceability of notch radius and calibration requirements.