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Conductivity measurements from EIS data?
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Conductivity measurements from EIS data?
What you need to do is plot the curve Z" x Z'. I don't know the look of the curve you'll have, but you should look up in literature for your material. Once the curve is plotted, it usually looks like one or more semi-circles. You should, then, fit these curves to a mathematical model, which represents a kind of electrical circuit, called the equivalent circuit. This circuit is usually composed of resistors and capacitors. For this modelling, you can use softwares like Zview. Once you've found the model that best fits your results, the software will give you the value of the Resistance of your system. With this value, you should be able to get to conductivity, through calculation, since resistivity and conductivity are related. All you need is the area of your electrodes, and the length of the pathway of the current. For example, if you positioned your sample perpendicularly to the electrodes plane, you would need the sample's thickness.
What you need to do is plot the curve Z" x Z'. I don't know the look of the curve you'll have, but you should look up in literature for your material. Once the curve is plotted, it usually looks like one or more semi-circles. You should, then, fit these curves to a mathematical model, which represents a kind of electrical circuit, called the equivalent circuit. This circuit is usually composed of resistors and capacitors. For this modelling, you can use softwares like Zview. Once you've found the model that best fits your results, the software will give you the value of the Resistance of your system. With this value, you should be able to get to conductivity, through calculation, since resistivity and conductivity are related. All you need is the area of your electrodes, and the length of the pathway of the current. For example, if you positioned your sample perpendicularly to the electrodes plane, you would need the sample's thickness.
Hi, As the above experts suggested, The total resistance (R) can be derived by fitting the semi-circles (in Nyquist plot of your data) with suitable equivalent circuit model. You will be able to calculate the conductivity (rho) by substitute the R in the formula sigma= 1/R * L/A. where R is your total impedance (restistance), L is your sample thickness or distance bt the electrodes and A is area (pir2 for circular pellet). Good luck.
Hi, As the above experts suggested, The total resistance (R) can be derived by fitting the semi-circles (in Nyquist plot of your data) with suitable equivalent circuit model. You will be able to calculate the conductivity (rho) by substitute the R in the formula sigma= 1/R * L/A. where R is your total impedance (restistance), L is your sample thickness or distance bt the electrodes and A is area (pir2 for circular pellet). Good luck.
Hello As you have measured Z' and Z'' then you you have the total information about the impedance using the formulas given in the electronic tutorial you will able to determine the resistance, which in turn with the dimensions of the sample will allow finding the conductivity. please see http://www.electronics-tutorials.ws/accircuits/series-circuit.html
Hello As you have measured Z' and Z'' then you you have the total information about the impedance using the formulas given in the electronic tutorial you will able to determine the resistance, which in turn with the dimensions of the sample will allow finding the conductivity. please see http://www.electronics-tutorials.ws/accircuits/series-circuit.html
We are trying to do the same kind of experiment. I would appreciate if you could tell me what type of cell you used here?What is your WE, CE and RE? Is it 3 electrode or 2 electrode system. We use coin cells in our lab
We are trying to do the same kind of experiment. I would appreciate if you could tell me what type of cell you used here?What is your WE, CE and RE? Is it 3 electrode or 2 electrode system. We use coin cells in our lab
What you need to do is plot the curve Z" x Z'. I don't know the look of the curve you'll have, but you should look up in literature for your material. Once the curve is plotted, it usually looks like one or more semi-circles. You should, then, fit these curves to a mathematical model, which represents a kind of electrical circuit, called the equivalent circuit. This circuit is usually composed of resistors and capacitors. For this modelling, you can use softwares like Zview. Once you've found the model that best fits your results, the software will give you the value of the Resistance of your system. With this value, you should be able to get to conductivity, through calculation, since resistivity and conductivity are related. All you need is the area of your electrodes, and the length of the pathway of the current. For example, if you positioned your sample perpendicularly to the electrodes plane, you would need the sample's thickness.
What you need to do is plot the curve Z" x Z'. I don't know the look of the curve you'll have, but you should look up in literature for your material. Once the curve is plotted, it usually looks like one or more semi-circles. You should, then, fit these curves to a mathematical model, which represents a kind of electrical circuit, called the equivalent circuit. This circuit is usually composed of resistors and capacitors. For this modelling, you can use softwares like Zview. Once you've found the model that best fits your results, the software will give you the value of the Resistance of your system. With this value, you should be able to get to conductivity, through calculation, since resistivity and conductivity are related. All you need is the area of your electrodes, and the length of the pathway of the current. For example, if you positioned your sample perpendicularly to the electrodes plane, you would need the sample's thickness.
What you need to do is plot the curve Z" x Z'. I don't know the look of the curve you'll have, but you should look up in literature for your material.
Once the curve is plotted, it usually looks like one or more semi-circles. You should, then, fit these curves to a mathematical model, which represents a kind of electrical circuit, called the equivalent circuit. This circuit is usually composed of resistors and capacitors. For this modelling, you can use softwares like Zview.
Once you've found the model that best fits your results, the software will give you the value of the Resistance of your system. With this value, you should be able to get to conductivity, through calculation, since resistivity and conductivity are related. All you need is the area of your electrodes, and the length of the pathway of the current. For example, if you positioned your sample perpendicularly to the electrodes plane, you would need the sample's thickness.
What you need to do is plot the curve Z" x Z'. I don't know the look of the curve you'll have, but you should look up in literature for your material.
Once the curve is plotted, it usually looks like one or more semi-circles. You should, then, fit these curves to a mathematical model, which represents a kind of electrical circuit, called the equivalent circuit. This circuit is usually composed of resistors and capacitors. For this modelling, you can use softwares like Zview.
Once you've found the model that best fits your results, the software will give you the value of the Resistance of your system. With this value, you should be able to get to conductivity, through calculation, since resistivity and conductivity are related. All you need is the area of your electrodes, and the length of the pathway of the current. For example, if you positioned your sample perpendicularly to the electrodes plane, you would need the sample's thickness.
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Hi,
As the above experts suggested, The total resistance (R) can be derived by fitting the semi-circles (in Nyquist plot of your data) with suitable equivalent circuit model. You will be able to calculate the conductivity (rho) by substitute the R in the formula sigma= 1/R * L/A. where R is your total impedance (restistance), L is your sample thickness or distance bt the electrodes and A is area (pir2 for circular pellet).
Good luck.
Hi,
As the above experts suggested, The total resistance (R) can be derived by fitting the semi-circles (in Nyquist plot of your data) with suitable equivalent circuit model. You will be able to calculate the conductivity (rho) by substitute the R in the formula sigma= 1/R * L/A. where R is your total impedance (restistance), L is your sample thickness or distance bt the electrodes and A is area (pir2 for circular pellet).
Good luck.
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to calculate conductivity from resistance , cross-sectional area and thickness of the modified electrode from equation
L(thickness)/R .Area
to calculate conductivity from resistance , cross-sectional area and thickness of the modified electrode from equation
L(thickness)/R .Area
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Hello
As you have measured Z' and Z'' then you you have the total information about the impedance using the formulas given in the electronic tutorial you will able to determine the resistance, which in turn with the dimensions of the sample will allow finding the conductivity.
please see
http://www.electronics-tutorials.ws/accircuits/series-circuit.html
Hello
As you have measured Z' and Z'' then you you have the total information about the impedance using the formulas given in the electronic tutorial you will able to determine the resistance, which in turn with the dimensions of the sample will allow finding the conductivity.
please see
http://www.electronics-tutorials.ws/accircuits/series-circuit.html
More
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Hi Muhammad Tuoqeer Anwar
We are trying to do the same kind of experiment. I would appreciate if you could tell me what type of cell you used here?What is your WE, CE and RE? Is it 3 electrode or 2 electrode system. We use coin cells in our lab
Hi Muhammad Tuoqeer Anwar
We are trying to do the same kind of experiment. I would appreciate if you could tell me what type of cell you used here?What is your WE, CE and RE? Is it 3 electrode or 2 electrode system. We use coin cells in our lab
More
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Hi All
Which point of Nyquist plot should be taken as total impedance (R) for measuring ionic conductivity by formula of L/RA?
Hi All
Which point of Nyquist plot should be taken as total impedance (R) for measuring ionic conductivity by formula of L/RA?
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What you need to do is plot the curve Z" x Z'. I don't know the look of the curve you'll have, but you should look up in literature for your material.
Once the curve is plotted, it usually looks like one or more semi-circles. You should, then, fit these curves to a mathematical model, which represents a kind of electrical circuit, called the equivalent circuit. This circuit is usually composed of resistors and capacitors. For this modelling, you can use softwares like Zview.
Once you've found the model that best fits your results, the software will give you the value of the Resistance of your system. With this value, you should be able to get to conductivity, through calculation, since resistivity and conductivity are related. All you need is the area of your electrodes, and the length of the pathway of the current. For example, if you positioned your sample perpendicularly to the electrodes plane, you would need the sample's thickness.
What you need to do is plot the curve Z" x Z'. I don't know the look of the curve you'll have, but you should look up in literature for your material.
Once the curve is plotted, it usually looks like one or more semi-circles. You should, then, fit these curves to a mathematical model, which represents a kind of electrical circuit, called the equivalent circuit. This circuit is usually composed of resistors and capacitors. For this modelling, you can use softwares like Zview.
Once you've found the model that best fits your results, the software will give you the value of the Resistance of your system. With this value, you should be able to get to conductivity, through calculation, since resistivity and conductivity are related. All you need is the area of your electrodes, and the length of the pathway of the current. For example, if you positioned your sample perpendicularly to the electrodes plane, you would need the sample's thickness.
More
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