Measurement Science and Technology ( IF 2.4 ) Pub Date : 2021-06-03 , DOI: 10.1088/1361-6501/abee53 Dave H Lowe , Gavin J Sutton , Alberto Sposito , Graham Machin , Jonathan V Pearce
Measurement traceability, in which there is a documented chain of calibration links from a measurement back to a primary realisation of a unit, is vital for achieving the smallest uncertainty in metrology. A sensor that can provide a traceable link in harsh environments may be advantageous even if its uncertainty is larger than that of typical calibrated devices. A phosphor-based thermometer that has optical rather than electrical connections has been built and then calibrated in terms of the International Temperature Scale of 1990. Its standard uncertainty ranges from 0.5 C at 0 C to 2 C at 650 C. While this uncertainty cannot match what is possible with thermocouples or resistance thermometers, the optical basis of the sensor means it can be used in situations where electrical connections are precluded.
中文翻译:
基于荧光粉的光纤温度计从 0 C 到 650 C 的设计、构造和可溯源校准
测量可追溯性,其中有从测量返回到单元的主要实现的校准链接的记录链,对于实现计量学中的最小不确定性至关重要。可以在恶劣环境中提供可追踪链接的传感器可能是有利的,即使其不确定性大于典型校准设备的不确定性。已经建立了一个具有光学而不是电气连接的基于磷光体的温度计,然后根据 1990 年国际温标进行了校准。其标准不确定度范围从 0 C 时的 0.5 C 到 650 C 时的 2 C。虽然这种不确定性无法匹配与热电偶或电阻温度计相比,传感器的光学基础意味着它可以用于排除电气连接的情况。