i wanna make a blood pressure signal generator using purely analog parts. Answered
I found this link : http://www.designnotes.com/downloads/MK105_Assembly.pdf. i was wondering if i could modify this or other suggestions?Or could i just run two together and use a different frequency somehow
needs to look similar to this: http://www.biopac.ca/images/img23.gif
edit:sorry , i was at work and didnt realise that it would be so confusing, so heres a few details
I have access to a 9 Vdc line. using that i need to create a blood pressure signal, where it peaks at 1.2v and lowest is .8V with a slight bounce after thepeak. You can see it in the image that i posted.
i was thinking of using a 555 timer and series of resistors/caps,which i could create a sine wave with it. But how would i go about creating the bounce?
So essentially simulating a perfect blood pressure of 120/80 mmHg , that i could input into my ECG machine or view on an scope.
I am also limited to purely analog. So i can use microcontrollers and the likes. But i am allowed to use 555 timers, op-amps etc.
BTW the ideas that i have seen are great, especially the one using valves and a sewing motor, i cannot use it unfortunately. I might make it during the summer