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- Newsgroups: sci.physics
- Path: sparky!uunet!world!moshier
- From: moshier@world.std.com (Stephen L Moshier)
- Subject: inductance of a coil
- Message-ID: <Bzqp0u.B8H@world.std.com>
- Summary: query: modern way to calculate inductance?
- Keywords: 19th century physics
- Organization: The World Public Access UNIX, Brookline, MA
- Date: Thu, 24 Dec 1992 01:19:41 GMT
- Lines: 18
-
- Recently I needed to know the electrical self inductance of a
- thick solenoid to an accuracy better than the ham radio formula
- offers. This led to an obsessive literature search that turned
- up many horrific formulas in expressions of infinite series, each
- term of which is a hypergeometric function. These had names like
- Maxwell, Stefan, and Butterworth attached to them. This
- literature ran from 1845 to 1915. The handbook tables for a thin
- solenoid were invented by Nagaoka, whom I'd not heard of, in
- 1909. I made a computer program for all of them, in their honor.
-
- What I did not find (though I didn't look too hard) was
- recent work on this topic. The latest item on any sort of
- accurate inductance calculation was a Bureau of Standards
- circular dated 1952.
-
- My question is, what is the modern way to calculate
- inductance? Could someone mention a reference?
-
-