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现在国产万用电表阻尼不好,在测量各项电参数时都要摇摆几次才到达平衡位置,读取时间过长。再者,无论国内外所制指针式万用电表,测量电阻时误差都较大,皆在标尺弧长的±2.5%左右,相对误差可达±10%左右。尤其甚者,国内外大部份万用电表都无保险装置,使用时偶有疏忽,即有损坏。作者提出四项措施,改进上述缺点,以使我国指针式万用电表的质量提高到新水平,以利出口创汇,为四个现代化出一分力量。
Now domestic multimeter damping meter is not good, when measuring the electrical parameters have to swing a few times to reach the equilibrium position, the reading time is too long. Furthermore, no matter at home and abroad made pointer multimeter, measuring the resistance error are larger, are within ± 2.5% of the arc length of the scale, the relative error of up to ± 10%. In particular, most of the multimeter at home and abroad are no fuse, occasionally used negligently, that is damaged. The authors propose four measures to improve the above shortcomings so as to raise the quality of our multimeter in our country to a new level in order to facilitate export and foreign exchange earnings and give a contribution to the four modernizations.