For ECG signal acquisition using the AFE4300 I followed these steps :
1) I connected the electrodes in J56(1-2), as in figure 1.
Figure 1
2) I connected the USB cable to the J1 connector on the MMB3 board.
3) I start the Software and I selected the Device Configuration tab. Next I chose the Weight Scale Control subtab and I Selected the INP1 and INM1 channel. I turn ON the WS
Figure 2
4) The next steps was: I selected the ADC Capture & Analysis tab and I set the Capture Mode to Continuous.
Figure 3
I followed all these steps and i got the signal of figure 3. The electrodes are not connected to the body.
When I connect the electrodes on the body (on hands) I get the same signal but with another amplitude.
Figure 4
Another way I tried the acquisition is: I connected the terminals copper coil(spirei de cupru) off steering wheel in J56(3-4), how is shown in figure 5.
Figure 5
The signal when I don’t put the hand on the steering wheel is:
Figure 6
When I put the hand on the steering wheel is:
Figure 7
I made zoom on the signal :
Figure 8
The difference between the signal to the electrodes and signal to the coil is :
- The signal to the electrodes is the same when the electrods is connected or not
- The signal to the coil is not the same, he changes when I put the hand on the steering wheel.
Questions:
1. How can measurement the ECG signal?
2.what electrod can use?
3.can connect the electrodes on the hands?
