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我院一台日产6151心电图机,故障现象是开机定标时打出的方波正常,在记录时出现50HZ 交流干扰,影响诊断,甚至无法使用、分析结果该机由于受时间、气候、环境等多种因素的影响,致使机抗干扰能力减退。该机在出厂前未加50HZ 抑制电路,因此外界各种形式的干扰信号,都会从人体拾取进入机内,在记录波形时反映出来。
Our hospital a Nissan 6151 ECG machine, the failure phenomenon is normal when the square wave hit the boot calibration, the exchange of 50HZ interference occurs during recording, the impact of diagnosis, or even unusable, the results of the aircraft due to time, climate, environment and more The impact of various factors, resulting in diminished ability of anti-interference machine. The machine did not add 50HZ suppression circuit at the factory, so various forms of interference signals from the outside world will be picked up from the human body into the machine, reflected in the recording waveform.