- #1
Milchy
- 9
- 0
Hi,
So I have this situation, I'm totally inexperienced with anything electricity. But as faith has it sometimes, suddenly I need a device that would be able to measure the electrical conductivity of a thin film.
Is there anyone who could guide me what would be the essential parts of a system to do this kind of thing? Mainly the "box" that would be sending and receiving the signals - what is it and what are the main characteristics it would need inputing? If I`m buying it - how fancy and expensive can it get? And if I decide to wire one - is it possible to a total newbie without getting myself killed?
Also depending on the above, how do i choose the wiring and material to make contact with the films, etc? I imagine the plates/electrodes would be like a sort of sandwich maker: where I put the film in between them. The films would be of thickness around 1 mm and less, the materials are household polymers: PE, PP, PP, PVC etc..
So far what I have understood (actually i don't understand, but it seems this is what i should do):
Apply a single frequency voltage and then measure the amplitude and phase shift of the resulting current. (But is it AC or DC? How high do I need the voltage to be - or is it something I'll have to gradually increase till I get some readings?)
Also, the films aren`t really conductors, depending on what I decide to do to them, whatever I have to measure will probably be low in amplitude/size of units I'll probably also need to amplify the signal somehow?
Sorry in advance if I said lots of stupid things.
EDIT:
On a side note, whatever answers I get, would the same technique be applicable for conductance measuring of liquid solutions of the mentioned polymers? It should be the same? I probably just need the main device (brains) of the operation and the rest is just the right electrodes/plates
So I have this situation, I'm totally inexperienced with anything electricity. But as faith has it sometimes, suddenly I need a device that would be able to measure the electrical conductivity of a thin film.
Is there anyone who could guide me what would be the essential parts of a system to do this kind of thing? Mainly the "box" that would be sending and receiving the signals - what is it and what are the main characteristics it would need inputing? If I`m buying it - how fancy and expensive can it get? And if I decide to wire one - is it possible to a total newbie without getting myself killed?
Also depending on the above, how do i choose the wiring and material to make contact with the films, etc? I imagine the plates/electrodes would be like a sort of sandwich maker: where I put the film in between them. The films would be of thickness around 1 mm and less, the materials are household polymers: PE, PP, PP, PVC etc..
So far what I have understood (actually i don't understand, but it seems this is what i should do):
Apply a single frequency voltage and then measure the amplitude and phase shift of the resulting current. (But is it AC or DC? How high do I need the voltage to be - or is it something I'll have to gradually increase till I get some readings?)
Also, the films aren`t really conductors, depending on what I decide to do to them, whatever I have to measure will probably be low in amplitude/size of units I'll probably also need to amplify the signal somehow?
Sorry in advance if I said lots of stupid things.
EDIT:
On a side note, whatever answers I get, would the same technique be applicable for conductance measuring of liquid solutions of the mentioned polymers? It should be the same? I probably just need the main device (brains) of the operation and the rest is just the right electrodes/plates
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