Investigation of a cleaning procedure for silicon spheres used in the realization and dissemination of the redefined kilogram via combined spectroscopic and gravimetric measurements
The new definition of the SI kilogram requires new methods of realizing this unit. The X-ray crystal density method is a primary realization method and uses silicon spheres. The spheres get cleaned before each measurement, in order to remove surface contaminations and thus reduce their uncertainty c...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2020-01-01
|
| Series: | International Journal of Metrology and Quality Engineering |
| Subjects: | |
| Online Access: | https://www.metrology-journal.org/articles/ijmqe/full_html/2020/01/ijmqe200042/ijmqe200042.html |
| _version_ | 1818909473676197888 |
|---|---|
| author | Beyer Edyta Borys Michael Mecke Michael Kolbe Michael |
| author_facet | Beyer Edyta Borys Michael Mecke Michael Kolbe Michael |
| author_sort | Beyer Edyta |
| collection | DOAJ |
| description | The new definition of the SI kilogram requires new methods of realizing this unit. The X-ray crystal density method is a primary realization method and uses silicon spheres. The spheres get cleaned before each measurement, in order to remove surface contaminations and thus reduce their uncertainty contribution to the realization. Therefore, cleaning is an inherent part of the realization and dissemination of the kilogram. A cleaning method for silicon spheres is investigated, concerning its suitability as a part of the realization of the redefined kilogram. Six silicon spheres were used to determine the repeatability of the established cleaning method. Measurements of the spheres' mass and the quantification of their surface layer mass after cleaning were carried out in several cycles resulting in 29 mass and surface measurements. The repeatability of the cleaning method applied shows a standard deviation in the order of two micrograms for both the mass and the surface layer. The cleaning method therefore sufficiently fulfils these requirements. |
| first_indexed | 2024-12-19T22:27:28Z |
| format | Article |
| id | doaj.art-bc2934a2609c47f4888ad284133a06ab |
| institution | Directory Open Access Journal |
| issn | 2107-6847 |
| language | English |
| last_indexed | 2024-12-19T22:27:28Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | International Journal of Metrology and Quality Engineering |
| spelling | doaj.art-bc2934a2609c47f4888ad284133a06ab2022-12-21T20:03:28ZengEDP SciencesInternational Journal of Metrology and Quality Engineering2107-68472020-01-01111810.1051/ijmqe/2020016ijmqe200042Investigation of a cleaning procedure for silicon spheres used in the realization and dissemination of the redefined kilogram via combined spectroscopic and gravimetric measurementsBeyer Edyta0https://orcid.org/0000-0001-5974-6075Borys Michael1Mecke Michael2Kolbe Michael3https://orcid.org/0000-0001-9732-5757Physikalisch-Technische Bundesanstalt, Abbestr. 2-12Physikalisch-Technische Bundesanstalt, Bundesallee 100Physikalisch-Technische Bundesanstalt, Bundesallee 100Physikalisch-Technische Bundesanstalt, Abbestr. 2-12The new definition of the SI kilogram requires new methods of realizing this unit. The X-ray crystal density method is a primary realization method and uses silicon spheres. The spheres get cleaned before each measurement, in order to remove surface contaminations and thus reduce their uncertainty contribution to the realization. Therefore, cleaning is an inherent part of the realization and dissemination of the kilogram. A cleaning method for silicon spheres is investigated, concerning its suitability as a part of the realization of the redefined kilogram. Six silicon spheres were used to determine the repeatability of the established cleaning method. Measurements of the spheres' mass and the quantification of their surface layer mass after cleaning were carried out in several cycles resulting in 29 mass and surface measurements. The repeatability of the cleaning method applied shows a standard deviation in the order of two micrograms for both the mass and the surface layer. The cleaning method therefore sufficiently fulfils these requirements.https://www.metrology-journal.org/articles/ijmqe/full_html/2020/01/ijmqe200042/ijmqe200042.htmlredefined kilogramsilicon spherescleaning methodrepeatabilitymass stabilitysurface characterization |
| spellingShingle | Beyer Edyta Borys Michael Mecke Michael Kolbe Michael Investigation of a cleaning procedure for silicon spheres used in the realization and dissemination of the redefined kilogram via combined spectroscopic and gravimetric measurements International Journal of Metrology and Quality Engineering redefined kilogram silicon spheres cleaning method repeatability mass stability surface characterization |
| title | Investigation of a cleaning procedure for silicon spheres used in the realization and dissemination of the redefined kilogram via combined spectroscopic and gravimetric measurements |
| title_full | Investigation of a cleaning procedure for silicon spheres used in the realization and dissemination of the redefined kilogram via combined spectroscopic and gravimetric measurements |
| title_fullStr | Investigation of a cleaning procedure for silicon spheres used in the realization and dissemination of the redefined kilogram via combined spectroscopic and gravimetric measurements |
| title_full_unstemmed | Investigation of a cleaning procedure for silicon spheres used in the realization and dissemination of the redefined kilogram via combined spectroscopic and gravimetric measurements |
| title_short | Investigation of a cleaning procedure for silicon spheres used in the realization and dissemination of the redefined kilogram via combined spectroscopic and gravimetric measurements |
| title_sort | investigation of a cleaning procedure for silicon spheres used in the realization and dissemination of the redefined kilogram via combined spectroscopic and gravimetric measurements |
| topic | redefined kilogram silicon spheres cleaning method repeatability mass stability surface characterization |
| url | https://www.metrology-journal.org/articles/ijmqe/full_html/2020/01/ijmqe200042/ijmqe200042.html |
| work_keys_str_mv | AT beyeredyta investigationofacleaningprocedureforsiliconspheresusedintherealizationanddisseminationoftheredefinedkilogramviacombinedspectroscopicandgravimetricmeasurements AT borysmichael investigationofacleaningprocedureforsiliconspheresusedintherealizationanddisseminationoftheredefinedkilogramviacombinedspectroscopicandgravimetricmeasurements AT meckemichael investigationofacleaningprocedureforsiliconspheresusedintherealizationanddisseminationoftheredefinedkilogramviacombinedspectroscopicandgravimetricmeasurements AT kolbemichael investigationofacleaningprocedureforsiliconspheresusedintherealizationanddisseminationoftheredefinedkilogramviacombinedspectroscopicandgravimetricmeasurements |