Questions tagged [human-signal]

Human signals are signals that can be measured and that carry meaningful information about how our body works. ECG, EEG, EMG, kinetic and kinematic measurement of the movement and GRF are good examples of human signals.

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I've become an electrical conductor for my headphones... but how?

So I have a pair of Bose noise-cancellation headphones that I plug into my keyboard every night to charge them (via my keyboard's USB port). My keyboard happens to be a metallic Apple keyboard. You will see why this may be important to note…
GDP2
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What is actually being measured in this video showing "excess AC voltage" in the human body?

One of my family members recently sent me a link to this Better Earthing website about the alternative therapy of "earthing". The site includes which includes a video that claims to show "excess AC voltage" and how to reduce it with their…
Sly_cardinal
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Bioelectrical Body Impedance Analysis?

On what principle Bioelectrical Body Impedance Analyzer works? I thought about this many times, and I wanted to know is there really a way to precisely measure all those body parameters with this device or it's just some kind of electronics consumer…
user76920
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How to generate a random signal in multisim 14.1

I'm trying to design a circuit which digitised a very noisy input. It is normally +/- 1mv but will randomly peak up to +/- 20mv, the frequency of interest is 0.1
Tasty213
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Strange trend for ECG gold electrodes impedance at DC

I’m trying to characterize two electrodes for ECG which are made as a classic PCB with a rounded shape and with the copper covered by a thin layer of gold (ENIG process). My first attempt was to put these electrodes in a 1% NaCl saline solution and…
thoraz
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Recording sensory nerve action potentials at the skin surface without electrical stimulus

I studied many nerve conduction studies. In these studies, there is one stimulator that excites the nerve and there are electrodes placed at the skin surface on the path of the nerves to record the nerve action potentials. There are a few questions,…
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2 Lead ECG without RLD AD8232

I have got the SparkFun kit with the AD8232. The schematic is: I wish to use only 2 leads; how do I ground the third lead RLD? I'm collecting the signal from the hands. The datasheet only gives application for cardiac monitor wherein the electrodes…
Richeek Dey
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luque rod from spinal fusion might be acting like a human EMF antenna

In 1994, I had a spinal fusion surgery to correct Scoliosis which was a result of my medical condition, Spinal Muscular Atrophy Type II. I've used a wheelchair my entire life. Because my upper body muscles could not hold up my spine, my spine…