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高频心电图(High FrequencyEKG)或称宽频心电图(wide BandEKG)是心脏疾病检查的新手段。要求仪器宽频带、高纸速、高增益,以便有效地观察QRS波群上的高频切迹。我们利用现有西门子Mingo-graf minor3心电心音仪,对其传动走纸部分作了改进,经改装后走纸速度可达200mm/s以上,因原机频响为0.05～800Hz、振幅为20mm/mv,可满足临床需要。具有能记录、阅读方便、能保持原机性能和一机多用的优点。改装方法: 原图“A8”线路要改接,改接后线路见右图,将其中100mm/s挡上R154电阻和4.7K电位器在“X”处断开,在该处换2.2K电阻和2.4K
High Frequency ECG (Wide Frequency ECG) or wide band ECG (wide Band ECG) is a new means of heart disease examination. Requires instrument wide band, high paper speed, high gain, in order to effectively observe the high-frequency notch on the QRS complex. We use the existing Siemens Mingo-graf minor3 ECG calipers, part of the transmission of its paper has been improved, the modified paper speed up to 200mm / s or more, due to the original machine frequency response is 0.05 ~ 800Hz, the amplitude of 20mm / mv, to meet clinical needs. Has to record, easy to read, can maintain the original machine performance and the advantages of a machine. Conversion method: The original figure “A8” line to change the connection, the line after the switch to see the right, which will block 100mm / s R154 resistance and 4.7K potentiometer at the “X” at the break, where the 2.2K resistance And 2.4K