Third harmonic distortion

geek.

You ain't the only one Speff. And to my pleasure my edits stuck.

?-)

=20

!!

=20

=20

Thank you for that bit of insight.

?-)

I'm working on that fancy stabilized laser, which has a lot of temperature control and refrigeration issues, so heat conduction is on my mind these days.

It's quite pretty, actually--if you have a half-space of some material with a sinusoidal thermal input on the surface, the temperature inside goes as

T(z,t) = exp(I omega t) exp(-(1+j)sqrt(omega/(2*kappa)) z)

where kappa is the thermal diffusivity,

kappa = alpha/(rho c_P),

rho is the mass density, and c_P is the specific heat at constant pressure.

The one-radian-per-factor-of-e rule comes straight out of the (1+j) in the exponential, and it's a really helpful rule of thumb in all sorts of thermal diffusion situations.

Cheers

Phil Hobbs

H.

fundamental.

datasheets.http://cp.literature.agilent.com/litweb/pdf/5968-1390E.pdf

=A0.... =A0"

Considering the rarity of Phil A's actual contributions i decided that i would be better off ignoring him.

?-/

Hobbs has become Larkin's paid pimp... quite the shame. ...Jim Thompson

ing

You read the references and go on from there. How do you know any info you read is correct? (If you don't already have some background in the field.)

Thanks Phil, "Just keep on swimming..."

George H.

You and JT need to get some new material, or maybe just some fresh air. You both sound like a scratched LP.

We all tend to turn into caricatures of ourselves as we age, but we can at least make some effort to fight it.

Cheers

Phil Hobbs

H.

tal.

.... =A0"

He certainly lacks engineering knowledge. I've often wondered if Phil Allison is just a bot of sorts. You know, a program that posts some non sequitur text to make it appear as if the poster knows some design, the follows up with the f*ck off stuff.

I think there would be some effect*, but I agree only at the lowest frequencies, and if measurable it would only be slight and a lot of other sources of distortion would be more important.

BTW (for PA) "

I'm asking this as a question (should have phrased it better). I'm not sure and I will have missed other changes that might be more important.

Hobbs never looks in the mirror ;-) ...Jim Thompson

Not Usenet, it's his association with Larkin that is doing it... elitism at its extreme. ...Jim Thompson

s -

cies

ower