To record a pulse waveform using the PPG100C, follow these setup and calibration details:
Plug the transducer into the amplifier but do not connect it to the subject yet.
red lead into VSUP+ portblack lead into GND portblue lead into INPUT port
Hint: Using the 3.0 Hz LP setting and the 0.5 Hz HP setting in conjunction will make it easier to find the rate of the pulse waveform (these filters can be applied in software as well).
Gain: 10 (lowest Gain option) = top position
LP: 3.0 Hz = top positionHP (first bank) : 0.5 Hz HP = top positionHP (second bank): 0.05 Hz HP = top position
Recommended acquisition sample rate: 100 Hz.
The following graphs show results of motion artifact and varying tension levels:
Well-placed sensor:
Example of motion artifact (finger):
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