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Measuring resistivity of dielectric liquid
Boundary Conditions for dielectric-conductor interfaceHow can cellphones be charged and used at the same time?Measuring voltage across short circuitUsing OR controller TPS2115ACapacitor effects
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$begingroup$
Is it possible to reliably determine the resistivity of a highly resistive liquid above the breakdown voltage (i.e. after ionising the substance)?
electricity
asked Mar 30 at 15:04
J. DoeJ. Doe
557
$endgroup$
add a comment |
$begingroup$
Is it possible to reliably determine the resistivity of a highly resistive liquid above the breakdown voltage (i.e. after ionising the substance)?
electricity
asked Mar 30 at 15:04
J. DoeJ. Doe
557
$endgroup$
add a comment |
$begingroup$
Is it possible to reliably determine the resistivity of a highly resistive liquid above the breakdown voltage (i.e. after ionising the substance)?
electricity
asked Mar 30 at 15:04
J. DoeJ. Doe
557
$endgroup$
Is it possible to reliably determine the resistivity of a highly resistive liquid above the breakdown voltage (i.e. after ionising the substance)?
electricity
electricity
asked Mar 30 at 15:04
J. DoeJ. Doe
557
asked Mar 30 at 15:04
J. DoeJ. Doe
557
asked Mar 30 at 15:04
J. DoeJ. Doe
557
asked Mar 30 at 15:04
J. DoeJ. Doe
557
asked Mar 30 at 15:04
J. DoeJ. Doe
557
557
add a comment |
add a comment |
1 Answer
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$begingroup$
You can determine the resistivity of anything, by measuring the voltage that causes a current to flow.
It's only useful to say that you've 'determined' the resistivity if it's reasonably linear (so stays the same as the voltage varies) and constant (is the same tomorrow as today).
The ionised fluid after a breakdown due to excessive voltage tends to have a conductivity that varies over many orders of magnitude, determined by the power that's being dissipated in it, the output impedance of the power source, and any impurities in it. It is very, very non-constant, and non-linear. Any breakdown may release material from the electrodes, changing the impurity level.
answered Mar 30 at 15:19
Neil_UKNeil_UK
79.8k285184
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1 Answer
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active
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1 Answer
1
active
oldest
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active
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active
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$begingroup$
You can determine the resistivity of anything, by measuring the voltage that causes a current to flow.
It's only useful to say that you've 'determined' the resistivity if it's reasonably linear (so stays the same as the voltage varies) and constant (is the same tomorrow as today).
The ionised fluid after a breakdown due to excessive voltage tends to have a conductivity that varies over many orders of magnitude, determined by the power that's being dissipated in it, the output impedance of the power source, and any impurities in it. It is very, very non-constant, and non-linear. Any breakdown may release material from the electrodes, changing the impurity level.
answered Mar 30 at 15:19
Neil_UKNeil_UK
79.8k285184
$endgroup$
add a comment |
$begingroup$
You can determine the resistivity of anything, by measuring the voltage that causes a current to flow.
It's only useful to say that you've 'determined' the resistivity if it's reasonably linear (so stays the same as the voltage varies) and constant (is the same tomorrow as today).
The ionised fluid after a breakdown due to excessive voltage tends to have a conductivity that varies over many orders of magnitude, determined by the power that's being dissipated in it, the output impedance of the power source, and any impurities in it. It is very, very non-constant, and non-linear. Any breakdown may release material from the electrodes, changing the impurity level.
answered Mar 30 at 15:19
Neil_UKNeil_UK
79.8k285184
$endgroup$
add a comment |
$begingroup$
You can determine the resistivity of anything, by measuring the voltage that causes a current to flow.
It's only useful to say that you've 'determined' the resistivity if it's reasonably linear (so stays the same as the voltage varies) and constant (is the same tomorrow as today).
The ionised fluid after a breakdown due to excessive voltage tends to have a conductivity that varies over many orders of magnitude, determined by the power that's being dissipated in it, the output impedance of the power source, and any impurities in it. It is very, very non-constant, and non-linear. Any breakdown may release material from the electrodes, changing the impurity level.
answered Mar 30 at 15:19
Neil_UKNeil_UK
79.8k285184
$endgroup$
You can determine the resistivity of anything, by measuring the voltage that causes a current to flow.
It's only useful to say that you've 'determined' the resistivity if it's reasonably linear (so stays the same as the voltage varies) and constant (is the same tomorrow as today).
The ionised fluid after a breakdown due to excessive voltage tends to have a conductivity that varies over many orders of magnitude, determined by the power that's being dissipated in it, the output impedance of the power source, and any impurities in it. It is very, very non-constant, and non-linear. Any breakdown may release material from the electrodes, changing the impurity level.
answered Mar 30 at 15:19
Neil_UKNeil_UK
79.8k285184
answered Mar 30 at 15:19
Neil_UKNeil_UK
79.8k285184
answered Mar 30 at 15:19
Neil_UKNeil_UK
79.8k285184
answered Mar 30 at 15:19
Neil_UKNeil_UK
79.8k285184
79.8k285184
add a comment |
add a comment |
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