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目前,国内还没有相应的校准规范支持在线校准,从计量管理角度看,仍然存在一些不确定因素。标准器具现场使用时,校准过程中存在环境因素对标准器各技术指标的影响还能不确定。因此,在线校准应考虑的原则如下:1.对现场不可拆卸的计量器具,对各种不适宜拆卸运输的仪表,目前大多采用在线校准的方法实现量值溯源。2.在线校准在满足客户需求的前提下,应根据校准现场的具体环境,因地制宜,拟定适合的校准方法。很多情况下,在线校准就是校准方法或校准设备的探索和创新。3.现场测量时,一般
At present, there is no corresponding calibration standard to support online calibration. From the perspective of measurement management, there are still some uncertainties. Standard equipment on-site use, the calibration process there are environmental factors on the standard technical indicators can not be determined. Therefore, the principles of on-line calibration should be considered as follows: 1. For non-detachable measuring instruments on the site, various instruments unsuitable for disassembly and transportation are mostly calibrated online for traceability. 2. Online calibration To meet customer needs under the premise should be based on the calibration site specific environment, according to local conditions, the development of appropriate calibration methods. In many cases, online calibration is the exploration and innovation of calibration methods or calibration equipment. 3. Field measurement, the general