Processing method for simultaneously acquiring fetal heart rate and fetal heart waveform
A processing method, fetal heart rate technology, applied to the measurement of pulse/heart rate, etc., can solve the problems of insufficient eye-catching display results, inability to detect in time, and delay of illness
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[0017] Please combine figure 1 , figure 2 As shown, the present invention provides a processing method for simultaneously obtaining fetal heart rate and fetal heart waveform, which mainly includes the following three steps.
[0018] Step 1: start the fetal heart rate monitor, generate a 2MHz excitation signal from the excitation circuit and send it to the ultrasonic transducer, the ultrasonic transducer emits ultrasonic waves and converts the reflected heartbeat analog signal into an electrical signal.
[0019] In step two, the electrical signal obtained in step one is demodulated, cluttered and amplified to obtain an effective fetal heart rate signal. The obtained fetal heart signal is divided into two paths, one path continues to step 3, and the other path signal is input to the speaker to monitor the fetal heart sound after being passed through the audio power amplifier.
[0020] Step 3: The fetal heart signal obtained in step 2 is amplified and divided into two channels...
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