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万用电表和电子电压表是电子技术实验中最常用的电子仪表。正确掌握万用电表和电子电压表的测试技术,是学生在电子技术测试中首先应该掌握的基本技能。本文就如何掌握万用电表和电子电压表的测试技术谈以下几个问题。1 万用电表及其测试技术1.1 万用电表精度的选择与测试结果的关系 万用电表的精度,也称准确度。万用电表精度按其等级一般分为1.0,1.5,2.5,5.0级。精度等级反映了测试中相对误差的大小。如
Universal meters and electronic voltmeters are the most commonly used electronic instruments in electronic technology experiments. Correctly mastering the test technology of the universal meter and the electronic voltmeter is the basic skill that students should master first in the electronic technology test. This article discusses the following issues on how to master the test technology of universal meters and electronic voltmeters. 1 Multimeter and its test technology 1.1 The relationship between the selection of multimeter accuracy and test results The accuracy of the multimeter, also known as accuracy. Universal meter accuracy is generally divided into 1.0, 1.5, 2.5, and 5.0 according to its grade. The accuracy level reflects the relative error in the test. Such as