Recent content by Milchy

Can anyone explain me the pattern that is obtained from selected area diffraction? What does it show? What are the dots? What are the rings? (example: http://www.microscopy.cz/html/images/2605_1_d0f65ce7_fig2.png) I know that during X-ray powder diffraction, radiation is shined at the powder at...

I need to measure the conductivity in order to evaluate the suitable application of the films, also to tailor the deposition process for better results. I´m studying the deposited coat on the polymer surface.

It is a film - its a transparent polymer slide with a thin film of particle coating on top 1) Yes I would want the surface conductivity 2) No specific contacts, plain surface area is all I got 3) Yes 4) I expect 0.01 μS - 1 S/m 5) ~ 0.1 - 10kHz 6) Uncertain at the moment, I would like to know...

Im not sure about capacitance, probably not something I need. But a question, supposedly the film is uniform in its electrical properties and thickness across the whole specimen. Would I observe any different reading from measuring it the displayed ways?

Different question? The question is the same, how do I measure the electrical conductance of a film. But if its as easy as connecting a few metal plates to a test meter and slipping the film between them, then I might have been overthinking this. I've never held a test meter in my hands, but can...

Yes, I need it for some experiments as the films will be embedded with different substances. Will a standard test meter even work? I mean, aren`t those generally made for more conductive materials?

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...

Homework Statement So as I understand, a negative Corona discharge happens between an electrode/pin/rod and a plane electrode. When the sharper electrode is connected to the negative (DC) plug, electrons concentrate on the tip, when sufficient breakthrough voltage is achieved a discharge...

Hello there! I have an idea I want to realize practically, but my electrical knowledge is almost zero. Everything I might have known is long forgotten. I'm asking for a good online course/site or any other resource that would provide me with enough information and examples to cal, wire...