ECG simulation is not working as expected~

[ahjun13]

Hi, im new to NI here...

Im an undergraduate student studying boimedical electronic engineering. Im now working on my final year project regarding biopotential measurements. Part of it is about ECG. I have installed ECG simulator into my labview and trying to use it in multisim.

I faced a few problems in between my simulation,

1. The simulation was very slow. It took very long time to complete one complete PQRS waveform. I tried few methods found from net such as changing the TMAX value, but the result still the same.

2. An error occured after some time of simulation, and i still cant solve it.

3. im using AD620 as my instrumentation amplifier, when i simulate my circuit, the output from ad620 is as expected, the PQRS waveform is there. When i connect it with filter, simulation become even slower than before, and error occured before one complete PQRS waveform is formed.

Here is my circuit diagram attached, please provide me some opinion or suggestion. Thank you.

[Xuesong_Liu]

Hi ahjun13,

Which version of ECG simulator did you install? In the new LabVIEW Biomedical Toolkit, we have an application named "Biosignal Generator".

You can find the download link at here.

[ahjun13]

hi xuesong_liu, im not sure wat version is my ECG simulator. But my multisim is 10.1,  while labview is 2011. Thanks for the link, i will try to play with it. ^^

[Steve.J]

Are you simulating your circuit in Multisim?  You may find more help for Multisim problems on the Multisim/Ultiboard discussion forum here:

https://forums.ni.com/t5/Multisim-and-Ultiboard/bd-p/370