{"id":2323,"date":"2021-12-08T14:36:24","date_gmt":"2021-12-08T17:36:24","guid":{"rendered":"https:\/\/metrologia2021.org.br\/?p=2323"},"modified":"2021-12-08T14:36:24","modified_gmt":"2021-12-08T17:36:24","slug":"206792-a-reference-system-to-calibrate-low-current-meters-in-the-range-of-picoamperes-to-microamperes","status":"publish","type":"post","link":"https:\/\/metrologia2021.org.br\/?p=2323","title":{"rendered":"[206792] A reference system to calibrate low-current meters in the range of picoamperes to microamperes"},"content":{"rendered":"

[vc_row][vc_column][vc_text_separator title=”ARTIGO” i_icon_fontawesome=”fa fa-file-pdf-o” color=”om-accent-color-3″ add_icon=”true”][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]Autores: <\/strong>Marcus Vin\u00edcius Viegas Pinto, Rodrigo Vargas Freitas Ventura, Regis Pinheiro Landim, Rodrigo Pereira David<\/p>\n

[\/vc_column_text][vc_separator][vc_column_text]Resumo: <\/strong>The calibration of low current meters in the range of picoamperes up to microamperes is important for the electronics industry, for the photometry area, and especially for the ionizing radiation area. In Brazil, traceability is limited to ten microamperes. In this paper, a reference system using Ohm\u2019s law method is presented. It was possible to calibrate an electrometer between 2 picoamperes and 20 microamperes, with uncertainties between 0.70 % and 0.000060 %, respectively, as well as to validate the developed system and Ohm\u2019s law method by comparing it with the method used to calibrate values above 10 microamperes, in an intralaboratory comparison.
\n[\/vc_column_text]<\/p>\n


\n<\/i> Download do Artigo<\/span><\/a>
\n<\/span>
\n <\/p>\n

[vc_text_separator title=”V\u00cdDEO” i_icon_fontawesome=”fa fa-video-camera” color=”om-accent-color-3″ add_icon=”true”]<\/p>\n