Contribution to traceability and consistency in length measurement standards

Masaji Sawabe

doi:10.1117/12.323110

30 September 1998 Contribution to traceability and consistency in length measurement standards

Masaji Sawabe

Proceedings Volume 3477, Recent Developments in Optical Gauge Block Metrology; (1998) https://doi.org/10.1117/12.323110
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

The concept of the traceability in length measurement standard is described and the present traceability system in Japan is discussed first. The calibration data of commercial stabilized He-Ne laser wavelength are shown and the suitable usage of the laser interferometer is given. The round robin gauge block measurement by comparator that is carried out among the calibration laboratories positioned several countries inside worldwide corporation are described with focusing on the consistency and the compatibility of the calibration accuracy. The contribution to traceability and consistency in length standard measurements is explained through two measurements mentioned above.

Citation Download Citation

Masaji Sawabe "Contribution to traceability and consistency in length measurement standards", Proc. SPIE 3477, Recent Developments in Optical Gauge Block Metrology, (30 September 1998); https://doi.org/10.1117/12.323110

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