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一、电磁干扰对电子测量设备的影响1.电磁干扰的产生及分类在日常的计量检定工作中会发现,有的电子测量装置会出现某些不正常的现象,如指针式仪表会出现指针抖动,数字式仪表的数码出现不规则的跳动等。产生这些现象的原因,一方面可能是由于电子测量设备本身的电路结构设计不合理或者工作原理不完善、电子元器件质量不好、制造工艺存在缺陷等;另一方面可能是由于仪表的工作(条件)环境发生变化,如电源电压、频率波动和外界其他电子测量设备的影响
First, the impact of electromagnetic interference on electronic measuring equipment 1. The generation of electromagnetic interference and classification In the daily measurement verification work will find that some electronic measuring devices will appear some abnormal phenomena, such as the pointer instrument will appear pointer jitter , The digital appearance of the instrument irregular beating and so on. The reason for these phenomena, on the one hand may be due to the electronic measuring device itself is not reasonable circuit structure design or working principle of imperfect, poor quality of electronic components, manufacturing processes and other defects; the other hand, may be due to the instrument’s work Conditions) the environment changes, such as the power supply voltage, frequency fluctuations and the impact of other electronic measuring equipment