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Any time you have a dielectric interface ( ___ pF ) source resistance will always have an error in signal response until the electrode impedance is eqal or less than the sub-cutaneous impedance. T...
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#5: Post edited
by
TonyStewart
·
2023-08-28T23:54:01Z (9 months ago)
- Any time you have a dielectric interface ( ___ pF ) source resistance will always have an error in signal response until the electrode impedance is eqal or less than the sub-cutaneous impedance. This will affect the expected 1/f noise response.
- Your goal is to reduce Rs and increase Cs with gel and physical restraints to reduce galvanic skin response(GSR) noise from modulation of electrode pressure which affects Cs mainly from the surface gap.
- When the electrode is dry, it is the highest impedance and thus most sensitive to surface pressure (GSR) error and thus reduces SNR of muscle signals and makes 1/f noise more obvious.
EMG signals are far easier to detect than EEG signals where the problem exists. Your signal conditioner BW ought to match the signal spectrum for ideal transfer function and Rx sensitivity.
- Any time you have a dielectric interface ( ___ pF ) source resistance will always have an error in signal response until the electrode impedance is eqal or less than the sub-cutaneous impedance. This will affect the expected 1/f noise response.
- Your goal is to reduce Rs and increase Cs with gel and physical restraints to reduce galvanic skin response(GSR) noise from modulation of electrode pressure which affects Cs mainly from the surface gap.
- When the electrode is dry, it is the highest impedance and thus most sensitive to surface pressure (GSR) error and thus reduces SNR of muscle signals and makes 1/f noise more obvious.
- EMG signals are far easier to detect than EEG signals where the problem exists. Your signal conditioner BW ought to match the signal spectrum for ideal transfer function and Rx sensitivity.
- I CAN MODEL THIS ERROR IN FALSTAD'S FILTER SITE OR YOU CAN TAKE MY WORD FOR IT.
#4: Post edited
by
TonyStewart
·
2023-08-28T23:52:50Z (9 months ago)
Any time you have a dielectric interface ( ___ pF ) source resistance will always have at least a 1st order HPF response. This will affect the expected 1/f noise response.- Your goal is to reduce Rs and increase Cs with gel and physical restraints to reduce galvanic skin response(GSR) noise from modulation of electrode pressure which affects Cs mainly from the surface gap.
- When the electrode is dry, it is the highest impedance and thus most sensitive to surface pressure (GSR) error and thus reduces SNR of muscle signals and makes 1/f noise more obvious.
- EMG signals are far easier to detect than EEG signals where the problem exists. Your signal conditioner BW ought to match the signal spectrum for ideal transfer function and Rx sensitivity.
- Any time you have a dielectric interface ( ___ pF ) source resistance will always have an error in signal response until the electrode impedance is eqal or less than the sub-cutaneous impedance. This will affect the expected 1/f noise response.
- Your goal is to reduce Rs and increase Cs with gel and physical restraints to reduce galvanic skin response(GSR) noise from modulation of electrode pressure which affects Cs mainly from the surface gap.
- When the electrode is dry, it is the highest impedance and thus most sensitive to surface pressure (GSR) error and thus reduces SNR of muscle signals and makes 1/f noise more obvious.
- EMG signals are far easier to detect than EEG signals where the problem exists. Your signal conditioner BW ought to match the signal spectrum for ideal transfer function and Rx sensitivity.
#3: Post edited
by
TonyStewart
·
2023-08-28T23:49:42Z (9 months ago)
- Any time you have a dielectric interface ( ___ pF ) source resistance will always have at least a 1st order HPF response. This will affect the expected 1/f noise response.
- Your goal is to reduce Rs and increase Cs with gel and physical restraints to reduce galvanic skin response(GSR) noise from modulation of electrode pressure which affects Cs mainly from the surface gap.
- When the electrode is dry, it is the highest impedance and thus most sensitive to surface pressure (GSR) error and thus reduces SNR of muscle signals and makes 1/f noise more obvious.
EMG signals are far easier to detect than EEG signals.
- Any time you have a dielectric interface ( ___ pF ) source resistance will always have at least a 1st order HPF response. This will affect the expected 1/f noise response.
- Your goal is to reduce Rs and increase Cs with gel and physical restraints to reduce galvanic skin response(GSR) noise from modulation of electrode pressure which affects Cs mainly from the surface gap.
- When the electrode is dry, it is the highest impedance and thus most sensitive to surface pressure (GSR) error and thus reduces SNR of muscle signals and makes 1/f noise more obvious.
- EMG signals are far easier to detect than EEG signals where the problem exists. Your signal conditioner BW ought to match the signal spectrum for ideal transfer function and Rx sensitivity.
#2: Post edited
by
TonyStewart
·
2023-08-28T23:48:15Z (9 months ago)
- Any time you have a dielectric interface ( ___ pF ) source resistance will always have at least a 1st order HPF response. This will affect the expected 1/f noise response.
Your goal is to reduce Rs and increase Cs with gel and physical restraints to reduce galvanic skin response noise from modulation of pressure.
- Any time you have a dielectric interface ( ___ pF ) source resistance will always have at least a 1st order HPF response. This will affect the expected 1/f noise response.
- Your goal is to reduce Rs and increase Cs with gel and physical restraints to reduce galvanic skin response(GSR) noise from modulation of electrode pressure which affects Cs mainly from the surface gap.
- When the electrode is dry, it is the highest impedance and thus most sensitive to surface pressure (GSR) error and thus reduces SNR of muscle signals and makes 1/f noise more obvious.
- EMG signals are far easier to detect than EEG signals.
#1: Initial revision
by
TonyStewart
·
2023-08-28T23:43:43Z (9 months ago)
Any time you have a dielectric interface ( ___ pF ) source resistance will always have at least a 1st order HPF response. This will affect the expected 1/f noise response. Your goal is to reduce Rs and increase Cs with gel and physical restraints to reduce galvanic skin response noise from modulation of pressure.