细算调零误差，再探欧姆表尺最佳段范围———对大学物理实验书中有关提法的研讨

doi:10.16854 /j.cnki.1000-0712.160462

College Physics ›› 2018, Vol. 37 ›› Issue (6): 22-24.doi: 10.16854 /j.cnki.1000-0712.160462

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To determine the best measuring range of ohmmeter again by carefully calculating the error of zeroing

PAN Ji-ting

Hangzhou No.14 Middle School，Hangzhou，Zhejiang 310006，China

Received:2016-11-03 Revised:2017-10-28 Online:2018-06-20 Published:2018-06-20

Abstract

Abstract: Based on the carefully analyzing and calculating the stochastic error of pointer avometer，which is caused by basic error of galvanometer in measuring resistance ( contain zeroing) on the whole physical process，the measurement formula of uncertainty is derived to obtain the best measuring range of ohmmeter again，to compare and analyze the relevant formulations of textbooks and documents.

Key words: pointer avometer, zeroing, stochastic error, uncertainty, best measuring range of ohmmeter

PAN Ji-ting. To determine the best measuring range of ohmmeter again by carefully calculating the error of zeroing[J].College Physics, 2018, 37(6): 22-24.

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To determine the best measuring range of ohmmeter again by carefully calculating the error of zeroing

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