{"id":1893,"date":"2021-10-18T00:36:37","date_gmt":"2021-10-18T03:36:37","guid":{"rendered":"https:\/\/metrologia2021.org.br\/?p=1893"},"modified":"2021-10-18T00:36:37","modified_gmt":"2021-10-18T03:36:37","slug":"204216-comparison-between-methods-of-electric-current-generation-applied-to-the-intermediary-checking-of-the-electrometer-calibration","status":"publish","type":"post","link":"https:\/\/metrologia2021.org.br\/?p=1893","title":{"rendered":"[204216] Comparison between methods of electric current generation applied to the intermediary checking of the electrometer calibration"},"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]Autor: <\/strong>Liana Machado, Ricardo Amorim Barbosa<\/p>\n

[\/vc_column_text][vc_separator][vc_column_text]Resumo: <\/strong>The Intermediary Checking of the calibration the electrometers [4], in order to ensure that the calibration factor of a given instrument is valid for a longer time, has been developed at LNMRI-IRD since 2019. It works with three of the methods for generating electric current of small values (pA): capacitance, resistance (Ohm) and ionization current (radiation sources). In this article, we will evaluate the performance of electrometers using the ionization current method and we will make a comparison between the results obtained by this method with the results of previous works [2], [3] and [5] that uses the Ohm method. From this comparison, we could see that the method using radiation sources had a better performance of the electrometers, however, in terms of cost-benefit, the Ohm method better serves the intermediary checking of the calibration the electrometers.
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