Do Wiggle Stick Meters Wear Out?

[Rich Grise]

Damn! I wasted all that money going to engineering school!

Apparently so. Read the last part of this sentence very carefully:

Inductors resist a change in current. When you apply a voltage to an
inductor, the current is initially *zero* and it rises linearily until
it reaches V/Rcoil, or the saturation of the core if you have one.

When the core reaches saturation, L decreases dramatically, and so dI/dT
has to increase, which is the opposite of what you've said. ;-)

So it'll just reach V/Rcoil sooner than if it hadn't saturated.

I haven't got to the rest of your post yet, impulsive nitpicker that I am.


Cheers!
Rich

 

[Tom Del Rosso]

In Rich Grise typed:

When the core reaches saturation, L decreases dramatically, and so
dI/dT has to increase, which is the opposite of what you've said. ;-)

So it'll just reach V/Rcoil sooner than if it hadn't saturated.

I haven't got to the rest of your post yet, impulsive nitpicker that
I am.

Did you miss the word "linearly"? It's misspelled. ;-)

 

[Chuck Harris]

Ah yes, you hunt for the tiny scraps I leave behind for the
carrion, but miss the bigger picture. I suppose I should become
like you guys, and when someone is wrong call them a f*ck head
and move on.

I kind of like to explain things... try to be helpful... I can change.

-Chuck Harris

 

[Tom Del Rosso]

In Chuck Harris typed:

Ah yes, you hunt for the tiny scraps I leave behind for the
carrion, but miss the bigger picture. I suppose I should become
like you guys, and when someone is wrong call them a f*ck head
and move on.

I kind of like to explain things... try to be helpful... I can change.

Don't think I mean it that way Chuck. I know it's a typo. I was being
a little facetious, that's all.

Pointing out the typo was my attempt at making a rimshot, aimed
tangentially at Rich. I was actually thinking that an inductor's
current is not linear at all. But I know that's a form of typo too.
What really surprised me is that Rich didn't point it out.

So it was sort of a tangential rimshot made from the behind the
backboard. Maybe it was too ambitious an attempt at humor.

 

[Chuck Harris]

Hi Tom,

It gets frustrating to post on any of the sci newsgroups.
If you misspell a word, or fail to use lawyerly precision,
someone is right there to rap your knuckles. Then there is
always the guy who doesn't understand, and has to demean
everyone else to make up for his feelings of inadequacy.
I wonder why I bother coming here sometimes.

The current rise in a perfect inductor when presented with
a voltage source most certainly is linear. Add some series
resistance, and the current rise becomes exponential.

If you have a core, the current rise resembles linear for
awhile, until you start to approach saturation. As you
approach saturation, the inductance of the inductor starts
to head toward that of the same winding with an air core.
So yes, the current will then start to rise quickly.

What doesn't happen is a big "inrush of current". That's
the capacitor's shtick.

-Chuck Harris

 

[Tom Del Rosso]

In Chuck Harris typed:

The current rise in a perfect inductor when presented with
a voltage source most certainly is linear. Add some series
resistance, and the current rise becomes exponential.

Uh, yeah. A little while ago I started thinking about what I wrote and
I realized that you did say voltage source, or something like that.

So it was a rimshot at the wrong end of the court. Indeed, too
ambitious an attempt at humor.

Thanks.

 

[DarkMatter]

Ah yes, you hunt for the tiny scraps I leave behind for the
carrion, but miss the bigger picture. I suppose I should become
like you guys, and when someone is wrong call them a f*ck head
and move on.

I kind of like to explain things... try to be helpful... I can change.

None of them ever sid that. THAT would be only me, dipshit.

Don't blanket the rest, because you are all red faced pissed at one!

Got clue?

 

[DarkMatter]

It gets frustrating to post on any of the sci newsgroups.
If you misspell a word, or fail to use lawyerly precision,
someone is right there to rap your knuckles.

Then don't. That IS what we have spell checkers for, AND that is
something a good pro would watch. So use damned spell checker. You
know... conscious effort and all...

Ignoring it makes you no more than a coffee and doughnuts type.
Fact is, ALL the details matter, not just those you wish to attach
your faith too.

You remind me of well trained cops that sit in a parking lot corner
for hours on end, eating doughnut instead of doing their friggin'
jobs.

YAAP

Yet Another American Problem

It also has a nethack meaning. Hehehe....

 

[DarkMatter]

What doesn't happen is a big "inrush of current". That's
the capacitor's shtick.

That is why high powered audio amps or linear DC supplies have to
have thermistors in the AC line. When energized, those rail caps take
it full bore full for some time. Too much current in too little time
for many circuit elements.

 

[Tim Auton]

It gets frustrating to post on any of the sci newsgroups.
If you misspell a word, or fail to use lawyerly precision,
someone is right there to rap your knuckles.

Don't top post, you arse. ;-)


Tim

 

[Tom Del Rosso]

In DarkMatter typed:

Got clue?

Got a KF.

 

[DarkMatter]

In DarkMatter typed:

Got a KF.

The retards that announce their filter file additions are more
retarded than the top posting retards are.

As if anyone gives a fat flying fuk about your intentions.

 

[Tim Williams]

something a good pro would watch. So use damned spell checker. You

^^
Beep: consistency check error #3F. Minus one point.

Tim

 

[Tim Williams]

None of them ever sid that. THAT would be only me, dipshit.
Don't blanket the rest, because you are all red faced pissed at one!

Got clue?

*Beep beep* consistency check error #19: noun in improper place. Minus one
point.
Error #4B: insulting the poster. Minus three points.

Tim

 

[Tim Williams]

The retards that announce their filter file additions are more
retarded than the top posting retards are.

As if anyone gives a fat flying fuk about your intentions.

Beep beep beep <at this point, checker is practically beeping off the hook>
error #4B: insulting the poster. Minus three points.
Error #42: using profanity. Minus one point.
Error #54: misspelled profanity. Minus one point.

Tim

 

[Tim Auton]

Beep beep beep <at this point, checker is practically beeping off the hook>
error #4B: insulting the poster. Minus three points.
Error #42: using profanity. Minus one point.
Error #54: misspelled profanity. Minus one point.

Pithy fuckwitted responses from a fukcing twat: bum.


Tim, -5.

 

[Mark Jones]

In news[email protected] (Tim Auton):

Pithy fuckwitted responses from a fukcing twat: bum.

Tim, -5.

And *what* does this have to do with wiggle sticks?

Someone illustrating the size of their wiggle stick?

Or someone wiggling their stick?

I heard doing that will make you go blind!

 

[DarkMatter]

^^
Beep: consistency check error #3F. Minus one point.

Tim

The "a" key on my keyboard has been failing incessantly, I miss it a
lot.

If one looks at many of my errors, if any, they are usually
omissions of n "a" character.

It particularly happens in gaming chat, as I type really fast in
order to continue gaming!

 

[DarkMatter]

Beep beep beep <at this point, checker is practically beeping off the hook>
error #4B: insulting the poster. Minus three points.

Big fukin' whoop.

Error #42: using profanity. Minus one point.

BIG fukin' whoop.

Error #54: misspelled profanity. Minus one point.

Intentional.

 

[DarkMatter]

Beep beep beep <at this point, checker is practically beeping off the hook>

Who the fuk is "checker".

Would you mean "the checker" by chance?

Beep, error number 69

Why would what he thinks make a fuk to me?
Gottcha! :]

You get Tae Kwan Leap, lesson number one, and lesson number 69...

One is "Boot to da head."

Sixty Nine is "Instant Karma will always get you at some point."

Try not to swallow your tail, you might implode the universe!

snip.