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Questions tagged [ionization]

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A Simple Model to caculate the Ionization Coefficient from the Avalanche Gain M

I got measured Data of the Avalanche Gain M (in dependence of the Electric Field E) of a APD. Is there a simple way to model the ionization coefficients a and b for electrons and holes? I know that ...
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6answers
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Why do high-voltage transformers need oil?

Someone told me that high-voltage transformers need oil because it prevents arcing. However, in terms of dielectric breakdown, isn't air the strongest? I remember from classes in college that as the ...
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2answers
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Amplifying an ionization current with an op amp

My observation: Previously at my work I was assigned a project in which I needed to amplify an AC signal from a piezoelectric electric sensor. I simply made an inverted op amp circuit to accomplish ...
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1answer
176 views

Why are ionization smoke detectors bad at detecting smoldering fires?

I have been doing some research on the differences between ionization and photoelectric smoke detectors, and main differences in their capabilities, seems to be their ability to detect different kinds ...
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1answer
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Does my electric clearing field actually make ions?

I am using an electric clearing field of 15v/10cm (~150V/m) to remove ions from a test chamber, however I'm wondering to what extent the localisation of the field's reference voltage plays a role. ...
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1answer
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Radio Noise from Storm

I drove through a Wyoming thunderstorm today. Just for fun, I set my AM car radio to the top end of the AM broadcast band where there was no station audible. Sure enough, I heard the lightning ...
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1answer
70 views

Negative air ionizer with a electric net of 3X 230V AC

I want to make the following negative air ionizer but the following instrucable uses a net of 230V AC + N. My question is : If I make the following circuit but power it with the two phases of a ...
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1answer
705 views

Are “ionizing” hair dryers any different from the regular ones? [closed]

I've been shopping for hair dryers and in all malls I've been to the salespeople explained how the "ionizing" hair dryers are better than the ones without that function, because it makes your hair ...