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I am a beginner in making coils and have read lots about them on this forum. Coil shielding still is an enigma for me
and I have no practical experience with shielding yet. I have completed a Baracuda and Surf Pi with rudimentary coils and
have read that one doesn't necessarily need shielding for a PI when running slower than 20uS delay. Is this true?
OK, here goes:
As far as I have understood shielding, it is to keep the charge potential seen by the receiving end constant against ground.
Please correct me if I'm wrong here.
My thoughts here are about shielding when totally underwater in the sea as opposed to standing in surf.
This would be for a PI detector. Sea water is a very good conductor. ( I think it was ~ 0.3 Ω/m )
What if I were to connect the coil ground which is also wound on the outside of the coil to the sea?
I would have no housing around the coil, it would be rigid, the teflon wires insulated except for the ground
connection to the sea. This in my mind would minimize/short any charge differences.
I don't know if this crazy, or have I misunderstood shielding - has anyone ever tried this?
Hope I've expressed what's been running round in my head like a roadrunner well enough
and kindly ask for your input/ideas/critique.
Thank You, Polymer
and I have no practical experience with shielding yet. I have completed a Baracuda and Surf Pi with rudimentary coils and
have read that one doesn't necessarily need shielding for a PI when running slower than 20uS delay. Is this true?
OK, here goes:
As far as I have understood shielding, it is to keep the charge potential seen by the receiving end constant against ground.
Please correct me if I'm wrong here.
My thoughts here are about shielding when totally underwater in the sea as opposed to standing in surf.
This would be for a PI detector. Sea water is a very good conductor. ( I think it was ~ 0.3 Ω/m )
What if I were to connect the coil ground which is also wound on the outside of the coil to the sea?
I would have no housing around the coil, it would be rigid, the teflon wires insulated except for the ground
connection to the sea. This in my mind would minimize/short any charge differences.
I don't know if this crazy, or have I misunderstood shielding - has anyone ever tried this?
Hope I've expressed what's been running round in my head like a roadrunner well enough
and kindly ask for your input/ideas/critique.
Thank You, Polymer
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