All Questions
7
questions
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52
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EKG active filter designs with single power supply
This is my beginners attempt at designing a EKG. I have printed out the PCB and attached all components to it to test it out. What I have observed are the following:
1. The outputs Vout1 as well as ...
- 11
0
votes
1
answer
140
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The amplification factor of the EMG circuit did not meet expectations
I've recently embarked on a project to create a DIY EMG system and have been using Multisim for simulation purposes before finalizing the PCB design. Attached is an image of my EMG circuit. In this ...
1
vote
1
answer
625
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What is the reference voltage of Vin- and Vin+ in this circuit?
I'm trying to make a PCB board to measure Electrocardiogram (ECG) signal. I have some doubts about the DC offset of the 2 input signals (\$V_{IN-}\$, \$V_{IN+}\$) with reference to analog ground. I ...
- 625
0
votes
1
answer
278
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How to convert the outputs from the MAX30003 and/or AD8232 ECG modules to millivolts (mV)
I have been working with the MAX30003 and AD8232 ECG modules for a while now and I am trying to figure out what the raw outputs from both modules correlate to. I cannot seem to find any information ...
0
votes
1
answer
198
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Risk of getting shocked by ECG leads? [closed]
I have recently come into possession of a GE patient monitor (Eagle 4000) which looks structurally sound, probably decommissioned because of its age. It seems to work without a hiccup but I remembered ...
- 23
0
votes
2
answers
244
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ECG electric design: 1 and 3 op-amp designs from a safety point of view
During the design of an ECG using an instrumentation and a differential amplifier, we can across this question:
Comparing the one and three op-amp designs from a safety point of view: of the two ...
- 115
0
votes
2
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196
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Recording of sensory nerve evoked potential generated through skin-receptors [closed]
If we touch / give pressure to a skin, there are many mechano-receptors like meissner/pacinian corpuscles that produce action potential in neurons.
I am in a need to detect those action potentials ...
