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FREQ COUNTER help

J

John Fields

Jan 1, 1970
0
As for rattling Phil Allison's cage - the longer we keep him mad, the
better the chance that he will blow a blood vessel and lose his
capacity to manipulate a keyboard. This would be a rather pyschopathic
motivation if one considered Phil to be fully human.
 
R

Rick

Jan 1, 1970
0
John said:
---
My argument hasn't changed at all; I posited a chain of equidistant
pulses, which is the best the system can do, and you objected with
your ridiculous "bursty" hypothesis. Ridiculous because it's
certainly possible for the PMT to be hit with 100 photons in a
nanosecond, but there's no way it could resolve the hits as distinct
events.

So a scenario that the detector can't deal with is ridiculous, rather than,
say, a failure of the detector or counter to be able to count all the
events you might like it to count.

Let's remind ourselves exactly what your "maximum throughput" pulses look
like, as described a couple of posts ago: "65536 pluses were spaced
equidistantly in a window 1.0 pulse or minus something millie seconds
wide."
You've imposed a requirement on the PAD to spurt out pulses exactly every
1/65535ms. I don't think it will be that accommodating. If the pulses are
shorter and you're still sampling at 1/65536 ms, you'll fail to detect some
pulses. If the pulses are longer, you'll sometimes double-clock on a
single event pulse. Both scenarios give you a miscount.
In fact, the only way to get it right is to make sure that the clock you're
gating is going to transition EVERY time the PAD happens to pulse. If that
means sampling more often than 1/65536ms and that the counter MAY overflow
in any given ms, then so be it. If that means sampling less frequently
than 1/65536ms and that the counter WILL NEVER overflow in any ms period,
then so be it. The point being, of course, that you must adjust your clock
to the maximum event rate, not hope that the maximum event rate just
happens to be related to your clock's bit-width and the reporting interval.
Accounting for the maximum event rate (albeit the maximum at the PAD
output, which I hadn't reckoned with before) is what I've being saying all
along.

---


---
Yes, and my original pulse train was just that; a series of pulses
with widths and spacing which will allow the system to achieve its
maximum throughput.
---


---
I considered using the input to the PAD (the output of the PMT) as a
gate to allow a counter to accumulate fast clocks during the length
of the input, the rationale being that multiple hits would create a
wider output from the PMT. However, I found that wasn't necessarily
true and was a bad idea. That's why I replied to the op's request
for an explanation with : "I was thinking of something else."

Fair enough.

Nope. 65536 comes from the maximum count from the counter (which is
presumably 65535), it does not come from the period of the pulses from the
PAD. If you hypothesise 1/65536ms pulses in order to determine the ppm
accuracy of the ms clock required for 1 event accuracy, you've blown it,
because the actual maximum rate from the PAD may be slower (in which case
your tolerance is too tight, but obviously that's okay) or faster (in which
case your tolerance isn't tight enough).
yielding a
period of about 1.53E-8s. That's 15.3ns, and
since there are one million nanoseconds in a millisecond,

what was that about me stating the obvious!?
one pulse period would be 15.3
parts per million. So, in order not to miss a pulse or count an
extra pulse, the window would have to be one millisecond long with a
tolerance of less than +/- 15.3 ppm. Something like 10ppm, just for
grins.

Caustic replies emerge from being called an asshole. Being English, I prefer
the term "arsehole".

---


---
No, it's what _you're_ now saying. I always postulated a train of
maximum-density detectable pulses and you're only now coming around
to it while trying to make it seem like it's been your position all
along.

Trouble is, you define maximum density (see 2 or 3 of your posts ago) in
terms of the 1ms reporting period and in terms of the bit-width of the
counter. Better tell the PAD your assumptions.
 
M

martin griffith

Jan 1, 1970
0
The same could be said for you, Bill.

Phil is fun, his verbal/keyboard skills are somewhat limited when it
comes to adjectives, he does needs some lessons in subtlety, wit and
sarcasm, and Bill seems to know a lot more than me, as does that Jim
dude from Az, and despite significant differences in political
philosophy I'm happy to see what any of them has say about technology.



martin
 
On his chosen subjects he is pretty good, but he does degenerate into
snarling rage remarkably quickly, and he remains incensed for
remarkably long periods.
 
M

Michael A. Terrell

Jan 1, 1970
0
But I said it first. You have to invent your own abuse if you want to
get any brownie points.

And I don't show much sign of blowing a blood vessel.


I don't want brownie points, Bill. Brownies are young girls on their
way to being Girls Scouts. The first sign of blowing a blood vessel is
when it explodes.



--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
M

Michael A. Terrell

Jan 1, 1970
0
On his chosen subjects he is pretty good, but he does degenerate into
snarling rage remarkably quickly, and he remains incensed for
remarkably long periods.



Kind of like your insane anti America rants, old boy?


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
Michael said:
It is insane for you to sit on the other side of the world and try to
influence how I think. Maybe you could learn that, if you tried?

If you did think, rather than knee-jerk reacted, it would be a slightly
less insane ambition.

Reasoned argument can influence the opinions of reasonable people - if
you are dedicated to the idea of being an unreasonable person,
programmed to reject all unfamiliar opinions as attempted subversion,
then this aproach is clearly futile - but not necessarily insane.

Someone who is that unreasonably suspicious is, of course, insane - the
technical term is paranoid.
 
M

Michael A. Terrell

Jan 1, 1970
0
If you did think, rather than knee-jerk reacted, it would be a slightly
less insane ambition.

Reasoned argument can influence the opinions of reasonable people - if
you are dedicated to the idea of being an unreasonable person,
programmed to reject all unfamiliar opinions as attempted subversion,
then this aproach is clearly futile - but not necessarily insane.

Someone who is that unreasonably suspicious is, of course, insane - the
technical term is paranoid.


Is that your own diagnosis, or do you have papers from your doctor?


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
Michael said:
Is that your own diagnosis, or do you have papers from your doctor?

Well, I am a doctor, though not one whose opinion would be legally
adequate to have you committed to a lunatic asylum. I certainly don't
have any papers from my doctor - what would he know about your mental
state?

And if you are worried about *my* mental state - because I don't happen
to believe in the line of political rubbish that you were educated to
accept as right-thinking - you can relax. Over here, and in many of the
less red-necked parts of the U.S.A. my political attitudes are not
merely acceptable, but also wide-spread, in some areas to the point
where political parties based on these attitudes have been elected and
have run the relevant countries with reasonable success.

My ideas may strike you as crazy, but you should try and work out why
you think they are crazy - and "my primary teacher told me that
socialists are communists and communists are bad" is not a persuasive
argument..
 
M

Michael A. Terrell

Jan 1, 1970
0
Well, I am a doctor, though not one whose opinion would be legally
adequate to have you committed to a lunatic asylum. I certainly don't
have any papers from my doctor - what would he know about your mental
state?

And if you are worried about *my* mental state - because I don't happen
to believe in the line of political rubbish that you were educated to
accept as right-thinking - you can relax. Over here, and in many of the
less red-necked parts of the U.S.A. my political attitudes are not
merely acceptable, but also wide-spread, in some areas to the point
where political parties based on these attitudes have been elected and
have run the relevant countries with reasonable success.

My ideas may strike you as crazy, but you should try and work out why
you think they are crazy - and "my primary teacher told me that
socialists are communists and communists are bad" is not a persuasive
argument..

The only person you could have committed is yourself, Bill. Are
there still "lunatic asylums" in Europe? That sounds like the right kind
of place for your next vacation.

As far as my political and world views, its really none of your damn
business. Anyone who doesn't agree 100% with your sick and deluded
agenda is "Insane" and they do everything in a "Knee jerk" manor etc...

Its your loss that you don't really understand the United States.
You think you do, but its obvious that you've read too many comic books
when you should have been cracking your text books. You are a sad old
man, and a hopeless loss as far as I'm concerned.




--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
J

John Smith

Jan 1, 1970
0
Michael A. Terrell said:
Anyone who doesn't agree 100% with your sick and deluded
agenda is "Insane" and they do everything in a "Knee jerk" manor etc...

Its your loss that you don't really understand the United States.
You think you do, but its obvious that you've read too many comic books
when you should have been cracking your text books. You are a sad old
man, and a hopeless loss as far as I'm concerned.

Do these USA text books he should be reading give the location of "Knee
Jerk Manor" I might want to stay a weekend there ........ :)

Only joking, I actually clicked on this link to see about FREQ COUNTER help.

Cheers

John
 
The only person you could have committed is yourself, Bill. Are
there still "lunatic asylums" in Europe? That sounds like the right kind
of place for your next vacation.

The are psychiatric hospitals in Europe, as there are all over the
world, where people can be admitted - sometimes against their will -
while the psychiatrists work out a drug regime that will let them
function in the community.

As you should be able to work out, I'm not in need of their services.
As far as my political and world views, its really none of your damn
business. Anyone who doesn't agree 100% with your sick and deluded
agenda is "Insane" and they do everything in a "Knee jerk" manor etc...

Would you care to specify which part of my agenda is sick or deluded -
ideally with dated citations, which make it easier to deal with
"selective" quotations.
Its your loss that you don't really understand the United States.
You think you do, but its obvious that you've read too many comic books
when you should have been cracking your text books.

I managed to spend enough time cracking the text books to get myself a
Ph.D. in chemistry, a couple of patents in electronics and a handful of
publications in refereed journals - look for "A.W.Sloman" on

http://scholar.google.com/
You are a sad old man, and a hopeless loss as far as I'm concerned.

And you also think that I don't really understand the United States - I
certainly don't share your blinkered outlook on your country, but then
again I don't get most of my information on your country from your
pathetic newspapers and your superficial TV news reports.

You would probably do better getting your infomration from comic books
- at least they are free from day to day manipulation.
 
M

Michael A. Terrell

Jan 1, 1970
0
I managed to spend enough time cracking the text books to get myself a
Ph.D. in chemistry, a couple of patents in electronics and a handful of
publications in refereed journals - look for "A.W.Sloman" on

http://scholar.google.com/


What have you done LATELY? If you were half the chemist you claim,
you would have cured all of the known diseases in the world, and if you
were one quarter of the electronics GURU you claim, there would be no
need for oil, coal or any other form of chemical fuel by now because you
would have solved every problem in the universe. As it is, you create
ulcers and headaches while you waste the energy needed to transmit your
pathetic, self serving crap.

And you also think that I don't really understand the United States - I
certainly don't share your blinkered outlook on your country,



If anyone is blinkered, its you, with your hatred of the US.
but then
again I don't get most of my information on your country from your
pathetic newspapers and your superficial TV news reports.


More of your lies. Its you who always claims where you live is
perfect, and condemn the US. I have seen problems and attacked them,
head on. Get your lame assed lies straight. I have sued crooked
politicians and got them out of office. I am involved in local politics
where I personally see needs not being met.

You don't like the US, and I have a little news for you. We don't
like your sorry, deluded ass either. I don't depend on the news, I get
a lot of information from a rather unique place called "THE REAL WORLD"
where I go out and find out for myself what is going on.

You would probably do better getting your infomration from comic books
- at least they are free from day to day manipulation.


I'll have to take your word on the high value of reading Comic books,
I haven't read one since I was eight years old.


Don't bother to reply, I've had my fill of your meaningless crap.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
M

Michael A. Terrell

Jan 1, 1970
0
John said:
Do these USA text books he should be reading give the location of "Knee
Jerk Manor" I might want to stay a weekend there ........ :)

Only joking, I actually clicked on this link to see about FREQ COUNTER help.

Cheers

John

Freq Counting 101:

1: Bill Slowman.
2: Phil Allison.
3: Rich Grise
4: Bobo The Chimp
5: Pig Bladder
6: Richard the Dreaded Libertarian
7: Rich the Newsgroup Wacko
8: Rich the Philosophizer
9: Rich, but drunk
10: Rich, Under the Affluence
11: Rich Grise, but drunk
12: Skybuck Flying
13: The Flavored Coffee Guy
14: [email protected]
15: [email protected]


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
R

Richard The Dreaded Libertarian

Jan 1, 1970
0
And you also think that I don't really understand the United States - I
certainly don't share your blinkered outlook on your country, but then
again I don't get most of my information on your country from your
pathetic newspapers and your superficial TV news reports.

Hey, Bill! The ultra-"right" wing like Terrell and Thmopson and other
Bushists aren't really represantitive of Americans in general. I think
if you could get them (Americans in general) to hold still and listen to
reason, instead of following the hype of their selected anointed party,
most Americans would be appalled at the idea of a president arbitrarily
deciding to order an invasion, and then claiming that "since we're at war,
I should have unlimited powers to do anything I want to." And I'm sure
you're well aware of Prince George's antics these last few years.

I know at least ONE American who still believes that the war is wrong,
and the people who instigated the war are traitors and are endangering
the security of the people they claim they're trying to protect.

Thanks,
Rich
 
K

krw

Jan 1, 1970
0
Freq Counting 101:

1: Bill Slowman.
2: Phil Allison.
3: Rich Grise
4: Bobo The Chimp
5: Pig Bladder
6: Richard the Dreaded Libertarian
7: Rich the Newsgroup Wacko
8: Rich the Philosophizer
9: Rich, but drunk
10: Rich, Under the Affluence
11: Rich Grise, but drunk
12: Skybuck Flying
13: The Flavored Coffee Guy
14: [email protected]
15: [email protected]

s/freq/freak/all
 
Michael said:
What have you done LATELY?

Nothing much. There is an Australian provisional patent in the system
for an improved electric piano keyboard that I'm working on at the
moment, but that is pretty much it.
If you were half the chemist you claim, you would have cured all of the known diseases > in the world,

I trained as a physical chemist, not a pharmacist, and haven't worked
as a chemist since 1973. Precisely where do you think I've claimed be a
better chemist than other chemists with a Ph.D. in the subject?
and if you were one quarter of the electronics GURU you claim, there would be no
need for oil, coal or any other form of chemical fuel by now because you
would have solved every problem in the universe.

In other words, if I was as quarte as good as the other electronic
gurus on this user group -people like Win Hill, John Larkin, Spehro
Pefhany and Jim Thompson - I'd have achieved things they they don't
seem to have managed.yet.
As it is, you create ulcers and headaches while you waste the energy needed to
transmit your pathetic, self serving crap.

Who has got ulcers and headaches? And how does the crap I post serve
me?

Please explain - if you can.
If anyone is blinkered, its you, with your hatred of the US.

Please demonstrate how thinking that the U.S. is less than perfect and
in need of minor improvement constitutes hatred.

The notion that the U.S. is 100% perfect just the way it is, is the
sort of notion that suits the fat cats that own and run the country,
but you only have to look at the public health statistics for the U.S.A
to realise that there is room for improvment.
More of your lies. Its you who always claims where you live is
perfect, and condemn the US.

Find a single instance where I have claimed that the Netherlands is
perfect - its public health and social security systems are appreciably
better than thise in the U.S.A. but that still leaves room for
improvement. It's attitudes and legal rules about keeping the elderly
in work are a whole lot worse than those in the U.S.A. and Australia,
which *is* something that is dear to my heart, and which I have
mentioned on this user group - most recently in the thread
"superheroes" on Sun, May 14 2006 4:26 pm in the 25th posting in the
thread.
I have seen problems and attacked them, head on. Get your lame assed lies straight. I > have sued crooked politicians and got them out of office. I am involved in local politics
where I personally see needs not being met.

Commendable. I was an active member of the Labour Party in the U.K, for
the last few years were there, but I can't vote in the Netherlands,
which discourages you from getting involved with political groups.
You don't like the US, and I have a little news for you. We don't
like your sorry, deluded ass either.

I've noticed. Then again, my list of friends and acquaintances doesn't
include many one-eyed America-firsters, and I don't feel any urge to
get know any more of them.
I don't depend on the news, I get
a lot of information from a rather unique place called "THE REAL WORLD"
where I go out and find out for myself what is going on.

Good. You must be an absolute fount of knowledge about your
neighbourhood, but - as we have noticed - not too well informed on more
remote issues, like the failed flood defences and inept emergency
measures around New Orleans.
I'll have to take your word on the high value of reading Comic books,
I haven't read one since I was eight years old.

Or anything else, by the look of it. Just for the record, I don't read
or collect comic books - the idea that I might came from you, and -
like most ot the stuff you post about me - is based on the workings of
your impoverished and ill-disciplined imagination
Don't bother to reply, I've had my fill of your meaningless crap.

It may be meaningless to you, but there is content there. Try reading
what I write, rather than scanning it for negative references to the
U.S.A. while ignoring everything else, rather like Gary Larson's dog
that only hears its own name.
 
R

Richard The Dreaded Libertarian

Jan 1, 1970
0
Find a single instance where I have claimed that the Netherlands is
perfect - its public health and social security systems are appreciably
better than thise in the U.S.A. but that still leaves room for
improvement.

Say, speaking of that socialist system - do people have the option to
keep their money, rather than have it taken away to pay other people's
bills?

Socialism is quite a problem in the US, but even the neocons seem to
be putting up with a lot of it; probably political expediency.

Thanks,
Rich
 
K

Ken Smith

Jan 1, 1970
0
Richard The Dreaded Libertarian said:
Socialism is quite a problem in the US, but even the neocons seem to
be putting up with a lot of it; probably political expediency.

All will become obvious if you replace the word "Neocon" with
"Authoritarian" and then look over what they have done.
 
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