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首页> 外文会议>Conference on Recent Developments in Traceable Dimensional Measurements Jun 20-21, 2001, Munich, Germany >Realising Traceability to the SI in Dimensional Metrology - Today and in Future
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Realising Traceability to the SI in Dimensional Metrology - Today and in Future

机译：在尺寸计量学中实现对SI的可追溯性-现在和将来

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摘要

The paper deals with a problem of increasing importance. That is in which way the technologies and formalisms can be changed to establish traceability in a reasonable and worldwide acceptable direction in future. Until 1960, when the Pt-Ir-prototype in the BIPM was the definition and realization of the Si-unit "metre", formal and physical reasons called for hierarchical calibration chains from the BIPM via the National Metrology Institutes into the national societies and industries. The procedure is well proven and formally well accepted. Since the definition of wavelengths of discharge lamps - and moreover of laser wavelengths of frequency stabilized lasers - there is no physical reason furtheron to stay with the traditional way of realizing traceability for length and dimensional metrology. Physical principles and well proven technologies (mise en pratique) allow to everybody, everywhere at any time to realize the SI unit for length. Experiences of NMIs show that the vacuum wavelength of lasers has never been an accuracy limiting factor for shop floor measurements. Other technical and formal aspects are of more relevance and need to be dealt with successfully to realize direct traceability as an acceptable alternative to the hierarchical calibration chain.
机译：该文件处理了越来越重要的问题。通过这种方式，可以更改技术和形式主义，以在未来的合理和全球公认的方向上建立可追溯性。直到1960年，当BIPM中的Pt-Ir原型是Si单位“米”的定义和实现时，正式和物理上的原因要求从BIPM到国家计量学会进入国家社会和行业的分级校准链。该程序已被充分证明并被正式接受。由于定义了放电灯的波长-而且还有频率稳定激光器的激光波长-因此，没有任何物理原因可以与实现长度和尺寸计量的可追溯性的传统方式保持一致。物理原理和久经考验的技术（实用知识）使每个地方的每个人都可以随时随地实现SI单位的长度。 NMI的经验表明，激光的真空波长从来都不是车间测量的精度限制因素。其他技术和形式方面具有更大的相关性，需要成功地解决这些问题，以实现直接可追溯性，以作为层次结构校准链的可接受替代方案。

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