What are the characteristics of the selected three-channel ECG machine?

　　The three-channel electrocardiograph is widely used in the market, and it is favored by many medical and equipment manufacturers. However, when we choose the three-channel electrocardiograph, we need to understand what characteristics it has. Let's understand together.

　　1. High detection accuracy

　　At present, most of the domestic electrocardiogram detection devices on the market are the technical standards of electrocardiogram monitors, and the error value is up to 20%; individual products are the technical standards of dynamic electrocardiographs, and the error value is up to 10%, and the excellent three-channel ECG The error value of the machine is within 5%, which meets international and domestic standards.

　　2. Strong anti-interference ability

　　According to national standards, the traditional ECG machine's anti-common mode interference ability is 60 dB, and the dynamic ECG machine is 80 dB; while the good anti-interference ability of the three-channel ECG machine is up to 100 dB, strong anti-interference ability, accurate and reliable ECG waveform.

　　3. Low frequency response effect

　　The common electrocardiograph adopts analog signal technology. During the shaping process of the electrocardiogram waveform, the electroencephalograph undergoes repeated processes of amplification and filtering of the electrocardiogram signal, which will inevitably cause signal distortion. The high-quality three-channel electrocardiograph adopts all-digital filtering technology to avoid the amplification, filtering and re-amplification process of the traditional electrocardiograph due to the ECG signal. Compared with the traditional machine, the frequency response has little effect, and the obtained electrocardiogram results are more trustworthy.

　　4. Good stability

　　Because of the different working principles, the ECG waveform will drift with the change of time and temperature in the traditional ECG machine. The three electrocardiographs with good EEG products use all-digital technology, the ECG waveform is completely undistorted, and the stability is good.