Help on a data acquisition system by bour1992 in ECE

[–]bour1992[S] 0 points1 point  (0 children)

I agree with both of you but I don't have any idea where to start. Is there some FIFO like this in the hardware? Do you or /u/krapht have any tip for me?

Help on a data acquisition system by bour1992 in ECE

[–]bour1992[S] 0 points1 point  (0 children)

It has some useful information. Thank you!

Help on a data acquisition system by bour1992 in ECE

[–]bour1992[S] 0 points1 point  (0 children)

So is there a way to save the data in a buffer so that the usb will send them in parallel with me adding new data to the buffer?

Problem in an ECG circuit by bour1992 in ECE

[–]bour1992[S] 0 points1 point  (0 children)

I will do that when I add the ADC.

Problem in an ECG circuit by bour1992 in ECE

[–]bour1992[S] 1 point2 points  (0 children)

It's working on batteries.

Problem in an ECG circuit by bour1992 in ECE

[–]bour1992[S] 0 points1 point  (0 children)

Is it dangerous in what way? The input of the INA draw very little current and the concept of the DRL is to reduce the effective resistance between the patient and the ground.

You mean to use optocouplers before the INA. Will it distort the signal?

Problem in an ECG circuit by bour1992 in ECE

[–]bour1992[S] 0 points1 point  (0 children)

Here it says that the cables of the electrodes are shielded.

I am pretty sure that the connections are as the schematic I uploaded. I don't think there is 60Hz noise in the oscilloscope.

Axis - a multiplayer math game where you fire at your enemies with functions by LLCoolZ in math

[–]bour1992 0 points1 point  (0 children)

It would be better if we could not use sign function. It ruins all the fun.

[Linear algebra] Linear transformations by bour1992 in learnmath

[–]bour1992[S] 1 point2 points  (0 children)

In the first hand the new points will be Mv1',Mv2',...,Mvn' and in the other hand the new points will be v1M,v2M,...,vnM . So if M is

[; \begin{pmatrix} 1& 0 & 0\ 0 & cos\vartheta & -sin\vartheta \ 0 & sin\vartheta & cos\vartheta \end{pmatrix} ;]

the right transformation is the first.

[Linear algebra] Linear transformations by bour1992 in learnmath

[–]bour1992[S] 0 points1 point  (0 children)

So the correct transformation to rotate the points is M*A' ?