English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Precise positioning measurement plays an important role in in today advancedmanufacturing industry, and length traceability chain has been optimizing andenriching to fulfill the developing and various precise positioningrequirement. In this paper, we propose a new length traceability chain based onchromium atom transition frequency, which is a combining utilization offundamental physical constant accuracy and grating interferometer environmentalrobustness. The selftraceable grating pitch standard, the selftraceable anglestandard and the selftraceable grating interferometer are promising to improvethe measurement accuracy, consistency and selfcalibration ability in situ forprecise positioning.

Length traceability chain based on chromium atom transition frequency