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Michael A. Terrell
Guest
Guest
Wed Nov 19, 2008 6:21 pm
Don Bruder wrote:
Quote:
Rich Grise wrote:
Well, duh - obviously, that's where the monkeys are! Just look around. ;-)
Every third poster on Usenet is actually a monkey. Look left. Look
right. Don't see a monkey? Where's that leave you?
With banana peels all over his floor?
--
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aioe.org, Goggle Groups, and Web TV users must request to be white
listed, or I will not see your messages.
If you have broadband, your ISP may have a NNTP news server included in
your account: http://www.usenettools.net/ISP.htm
There are two kinds of people on this earth:
The crazy, and the insane.
The first sign of insanity is denying that you're crazy.
pol
Guest
Guest
Thu Nov 20, 2008 6:55 pm
An IR thermometer will not be very accurate on lower as body temps due
to the radiation measured.
An IR is good for above 50 F or 25 C
Calibration is best done close to the temps really measured.
And yes boiling and freezing water is very accurate and the method
with the black body is best.
On Fri, 14 Nov 2008 19:02:54 -0600, ratman <endlr_at_execpc.com> wrote:
Quote:
On Tue, 08 May 2007 14:56:50 GMT, DaveC <me_at_privacy.net> wrote:
I know this subject of "cheap" and "calibrate" used in the same sentence may
well be anathema to some of you but I need to verify that either my IR temp
gun is accurate or my DMM/thermocouple is, or neither. Accuracy to 2 or 3
degrees F is fine.
I'm looking for suggestions for a simple way to provide some kind of common
temperature "standard" (I use the term loosely, here) I can compare these
against.
Thanks,
I would put money on the therocouple thermometer, for what
it's worth.
I know this subject of "cheap" and "calibrate" used in the same sentence may
well be anathema to some of you but I need to verify that either my IR temp
gun is accurate or my DMM/thermocouple is, or neither. Accuracy to 2 or 3
degrees F is fine.
I'm looking for suggestions for a simple way to provide some kind of common
temperature "standard" (I use the term loosely, here) I can compare these
against.
Thanks,
I would put money on the therocouple thermometer, for what
it's worth.
GregS
Guest
Guest
Thu Nov 20, 2008 7:44 pm
In article <o09bi41istpllobpvqheb32e8qj7er0r6c_at_4ax.com>, pol <shooter_at_home.nl> wrote:
Quote:
An IR thermometer will not be very accurate on lower as body temps due
to the radiation measured.
An IR is good for above 50 F or 25 C
Calibration is best done close to the temps really measured.
And yes boiling and freezing water is very accurate and the method
with the black body is best.
to the radiation measured.
An IR is good for above 50 F or 25 C
Calibration is best done close to the temps really measured.
And yes boiling and freezing water is very accurate and the method
with the black body is best.
I noticed that my typical Fluke IR thermometer only works at room
temperature. I took it outside last winter, and after the unit starts
to cool, forget it.
greg
Quote:
On Fri, 14 Nov 2008 19:02:54 -0600, ratman <endlr_at_execpc.com> wrote:
On Tue, 08 May 2007 14:56:50 GMT, DaveC <me_at_privacy.net> wrote:
I know this subject of "cheap" and "calibrate" used in the same sentence may
well be anathema to some of you but I need to verify that either my IR temp
gun is accurate or my DMM/thermocouple is, or neither. Accuracy to 2 or 3
degrees F is fine.
I'm looking for suggestions for a simple way to provide some kind of common
temperature "standard" (I use the term loosely, here) I can compare these
against.
Thanks,
I would put money on the therocouple thermometer, for what
it's worth.
Peter Hucker
Guest
Guest
Thu Nov 20, 2008 8:24 pm
Have I got really rubbish thermometers? I've tried measuring body temperature both in my mouth and under my arm, and it's never more than about 30C.
On Thu, 20 Nov 2008 17:55:40 -0000, pol <shooter_at_home.nl> wrote:
Quote:
An IR thermometer will not be very accurate on lower as body temps due
to the radiation measured.
An IR is good for above 50 F or 25 C
Calibration is best done close to the temps really measured.
And yes boiling and freezing water is very accurate and the method
with the black body is best.
On Fri, 14 Nov 2008 19:02:54 -0600, ratman <endlr_at_execpc.com> wrote:
On Tue, 08 May 2007 14:56:50 GMT, DaveC <me_at_privacy.net> wrote:
I know this subject of "cheap" and "calibrate" used in the same sentence may
well be anathema to some of you but I need to verify that either my IR temp
gun is accurate or my DMM/thermocouple is, or neither. Accuracy to 2 or 3
degrees F is fine.
I'm looking for suggestions for a simple way to provide some kind of common
temperature "standard" (I use the term loosely, here) I can compare these
against.
Thanks,
I would put money on the therocouple thermometer, for what
it's worth.
to the radiation measured.
An IR is good for above 50 F or 25 C
Calibration is best done close to the temps really measured.
And yes boiling and freezing water is very accurate and the method
with the black body is best.
On Fri, 14 Nov 2008 19:02:54 -0600, ratman <endlr_at_execpc.com> wrote:
On Tue, 08 May 2007 14:56:50 GMT, DaveC <me_at_privacy.net> wrote:
I know this subject of "cheap" and "calibrate" used in the same sentence may
well be anathema to some of you but I need to verify that either my IR temp
gun is accurate or my DMM/thermocouple is, or neither. Accuracy to 2 or 3
degrees F is fine.
I'm looking for suggestions for a simple way to provide some kind of common
temperature "standard" (I use the term loosely, here) I can compare these
against.
Thanks,
I would put money on the therocouple thermometer, for what
it's worth.
--
http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com
Basketball analyst: "He dribbles a lot and the opposition doesn't like it. In fact you can see it all over their faces."
Archimedes' Lever
Guest
Guest
Fri Nov 21, 2008 3:08 am
On Thu, 20 Nov 2008 18:55:40 +0100, pol <shooter_at_home.nl> wrote:
Quote:
An IR thermometer will not be very accurate on lower as body temps due
to the radiation measured.
to the radiation measured.
Anything above absolute zero emits InfraRed radiation.
IR thermometers are calibrated for a very small temperature window,
compared to the span of what is available. From low temps to high temps,
many models are available. Many operate at a specific wavelength due to
spectral windows on their transducers that make the unit very application
specific.
A good IR thermometer,correctly factory calibrated, should be left
alone, and will remain deadly accurate for years. If one thinks one's
reading is off the mark, think about emissivity factor. Do not ever
blame your instrument. Operator error is often (nearly always)the case.
Calibrated thermo-couples are always nice to have around to verify your
IR Thermometer reading capability.
That is, if one buys a reputable instrument to begin with.
Archimedes' Lever
Guest
Guest
Fri Nov 21, 2008 3:14 am
On Thu, 20 Nov 2008 18:44:51 GMT, zekfrivo_at_zekfrivolous.com (GregS)
wrote:
Quote:
In article <o09bi41istpllobpvqheb32e8qj7er0r6c_at_4ax.com>, pol <shooter_at_home.nl> wrote:
An IR thermometer will not be very accurate on lower as body temps due
to the radiation measured.
An IR is good for above 50 F or 25 C
Calibration is best done close to the temps really measured.
And yes boiling and freezing water is very accurate and the method
with the black body is best.
I noticed that my typical Fluke IR thermometer only works at room
temperature. I took it outside last winter, and after the unit starts
to cool, forget it.
An IR thermometer will not be very accurate on lower as body temps due
to the radiation measured.
An IR is good for above 50 F or 25 C
Calibration is best done close to the temps really measured.
And yes boiling and freezing water is very accurate and the method
with the black body is best.
I noticed that my typical Fluke IR thermometer only works at room
temperature. I took it outside last winter, and after the unit starts
to cool, forget it.
Now, if you examine the spec Fluke published, you should find a range
of operation, under which it is meant to give a calibrated reading.
The device (IR Transducer) that does the reading (likely a resistor
bolometer) is perfectly capable of reading lower, but the electronics it
feeds only got designed to work in a specific voltage window, so there
will be no read out below a certain threshold. It has to do with Fluke's
circuitry and calibrated window of operation. The transducer itself is
capable of far more, I guarantee it. Just don't point it at the Sun.
Bungalow Bill
Guest
Guest
Fri Nov 21, 2008 3:16 am
On Thu, 20 Nov 2008 19:24:37 -0000, "Peter Hucker" <none_at_spam.com> wrote:
Quote:
Have I got really rubbish thermometers? I've tried measuring body temperature both in my mouth and under my arm, and it's never more than about 30C.
I never thought that I would ever get to say this to anyone and really
mean it.
STICK IT UP YER ASS! :-] Hehehehe!
Peter Hucker
Guest
Guest
Sat Nov 22, 2008 9:15 pm
On Fri, 21 Nov 2008 02:16:23 -0000, Bungalow Bill <BugalowBill_at_abbeyroad.ukcom> wrote:
Quote:
On Thu, 20 Nov 2008 19:24:37 -0000, "Peter Hucker" <none_at_spam.com> wrote:
Have I got really rubbish thermometers? I've tried measuring body temperature both in my mouth and under my arm, and it's never more than about 30C.
I never thought that I would ever get to say this to anyone and really
mean it.
STICK IT UP YER ASS! :-] Hehehehe!
Have I got really rubbish thermometers? I've tried measuring body temperature both in my mouth and under my arm, and it's never more than about 30C.
I never thought that I would ever get to say this to anyone and really
mean it.
STICK IT UP YER ASS! :-] Hehehehe!
And if next time I forgot I'd done that, and stuck it in my mouth?
--
http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com
A bloke is in a queue at the Super Market when he notices that the rather dishy blonde behind him has just raised her hand and smiled hello to him.
He is rather taken aback that such a looker would be waving to him, and although familiar he can't place where he might know her from, so he says "Sorry, do you know me?"
She replies "I maybe mistaken, but I thought you might be the father of one of my children!"
His mind shoots back to the one and only time he has been unfaithful, "Christ!" he says "are you that stripogram on my stag night that I shagged on the snooker table in front of all my mates while your mate whipped me with some wet celery and stuck a cucumber up my arse?"
"No" she replies, "I'm your son's English Teacher"
The Pig Bladder from Uran
Guest
Guest
Sat Nov 22, 2008 10:44 pm
On Sat, 22 Nov 2008 20:15:22 +0000, Peter Hucker wrote:
Quote:
On Fri, 21 Nov 2008 02:16:23 -0000, Bungalow Bill
On Thu, 20 Nov 2008 19:24:37 -0000, "Peter Hucker" <none_at_spam.com
Have I got really rubbish thermometers? I've tried measuring body
temperature both in my mouth and under my arm, and it's never more than
about 30C.
I never thought that I would ever get to say this to anyone and really
mean it.
STICK IT UP YER ASS! :-] Hehehehe!
And if next time I forgot I'd done that, and stuck it in my mouth?
On Thu, 20 Nov 2008 19:24:37 -0000, "Peter Hucker" <none_at_spam.com
Have I got really rubbish thermometers? I've tried measuring body
temperature both in my mouth and under my arm, and it's never more than
about 30C.
I never thought that I would ever get to say this to anyone and really
mean it.
STICK IT UP YER ASS! :-] Hehehehe!
And if next time I forgot I'd done that, and stuck it in my mouth?
Have you ever heard the term, "wash"? And a healthy ass shouldn't have
anything harmful in it - it's inside your own body, right?
--
Flap!
The Pig Bladder from Uranus
Bungalow Bill
Guest
Guest
Sat Nov 22, 2008 11:39 pm
On Sat, 22 Nov 2008 20:15:22 -0000, "Peter Hucker" <none_at_spam.com> wrote:
Quote:
And if next time I forgot I'd done that, and stuck it in my mouth?
I think you could survive your own fecal remnant attack. Sheesh. Wash
it off already!
Peter Hucker
Guest
Guest
Sun Nov 23, 2008 8:21 pm
On Sat, 22 Nov 2008 21:44:12 -0000, The Pig Bladder from Uranus <pb_at_example.net> wrote:
Quote:
On Sat, 22 Nov 2008 20:15:22 +0000, Peter Hucker wrote:
On Fri, 21 Nov 2008 02:16:23 -0000, Bungalow Bill
On Thu, 20 Nov 2008 19:24:37 -0000, "Peter Hucker" <none_at_spam.com
Have I got really rubbish thermometers? I've tried measuring body
temperature both in my mouth and under my arm, and it's never more than
about 30C.
I never thought that I would ever get to say this to anyone and really
mean it.
STICK IT UP YER ASS! :-] Hehehehe!
And if next time I forgot I'd done that, and stuck it in my mouth?
Have you ever heard the term, "wash"? And a healthy ass shouldn't have
anything harmful in it - it's inside your own body, right?
On Fri, 21 Nov 2008 02:16:23 -0000, Bungalow Bill
On Thu, 20 Nov 2008 19:24:37 -0000, "Peter Hucker" <none_at_spam.com
Have I got really rubbish thermometers? I've tried measuring body
temperature both in my mouth and under my arm, and it's never more than
about 30C.
I never thought that I would ever get to say this to anyone and really
mean it.
STICK IT UP YER ASS! :-] Hehehehe!
And if next time I forgot I'd done that, and stuck it in my mouth?
Have you ever heard the term, "wash"? And a healthy ass shouldn't have
anything harmful in it - it's inside your own body, right?
But some parts of the body aren't supposed to come into contact with other parts.
Try feeding the exhaust pipe into the air intake in your car and see if you can drive it a fair distance.
--
http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com
It said, "Insert disk #3," but only two will fit!
Peter Hucker
Guest
Guest
Sun Nov 23, 2008 8:51 pm
On Fri, 21 Nov 2008 02:14:33 -0000, Archimedes' Lever <OneBigLever_at_infiniteseries.org> wrote:
Quote:
On Thu, 20 Nov 2008 18:44:51 GMT, zekfrivo_at_zekfrivolous.com (GregS)
wrote:
In article <o09bi41istpllobpvqheb32e8qj7er0r6c_at_4ax.com>, pol <shooter_at_home.nl> wrote:
An IR thermometer will not be very accurate on lower as body temps due
to the radiation measured.
An IR is good for above 50 F or 25 C
Calibration is best done close to the temps really measured.
And yes boiling and freezing water is very accurate and the method
with the black body is best.
I noticed that my typical Fluke IR thermometer only works at room
temperature. I took it outside last winter, and after the unit starts
to cool, forget it.
Now, if you examine the spec Fluke published, you should find a range
of operation, under which it is meant to give a calibrated reading.
The device (IR Transducer) that does the reading (likely a resistor
bolometer) is perfectly capable of reading lower, but the electronics it
feeds only got designed to work in a specific voltage window, so there
will be no read out below a certain threshold. It has to do with Fluke's
circuitry and calibrated window of operation. The transducer itself is
capable of far more, I guarantee it. Just don't point it at the Sun.
wrote:
In article <o09bi41istpllobpvqheb32e8qj7er0r6c_at_4ax.com>, pol <shooter_at_home.nl> wrote:
An IR thermometer will not be very accurate on lower as body temps due
to the radiation measured.
An IR is good for above 50 F or 25 C
Calibration is best done close to the temps really measured.
And yes boiling and freezing water is very accurate and the method
with the black body is best.
I noticed that my typical Fluke IR thermometer only works at room
temperature. I took it outside last winter, and after the unit starts
to cool, forget it.
Now, if you examine the spec Fluke published, you should find a range
of operation, under which it is meant to give a calibrated reading.
The device (IR Transducer) that does the reading (likely a resistor
bolometer) is perfectly capable of reading lower, but the electronics it
feeds only got designed to work in a specific voltage window, so there
will be no read out below a certain threshold. It has to do with Fluke's
circuitry and calibrated window of operation. The transducer itself is
capable of far more, I guarantee it. Just don't point it at the Sun.
Go on, poke fun at me, what would actually happen?
--
http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com
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SoothSayer
Guest
Guest
Sun Nov 23, 2008 10:31 pm
On Sun, 23 Nov 2008 19:21:06 -0000, "Peter Hucker" <none_at_spam.com> wrote:
Quote:
Try feeding the exhaust pipe into the air intake in your car and see if you can drive it a fair distance.
Bannana in the tailpipe fails as well...
Bwuahahahaha!
Archimedes' Lever
Guest
Guest
Sun Nov 23, 2008 10:36 pm
On Sun, 23 Nov 2008 19:51:36 -0000, "Peter Hucker" <none_at_spam.com> wrote:
Quote:
Go on, poke fun at me, what would actually happen?
If it is a resistor bolometer, one can burn it up by pointing it at the
sun.
Some have integrated FETs, and it would blow that... too.
Dave Martindale
Guest
Guest
Mon Nov 24, 2008 8:45 am
"Peter Hucker" <none_at_spam.com> writes:
Quote:
Have I got really rubbish thermometers? I've tried measuring body
temperature both in my mouth and under my arm, and it's never more than
about 30C.
temperature both in my mouth and under my arm, and it's never more than
about 30C.
Probably. I just tried a couple of inexpensive IR thermometers, and
both read between 36 and 37 degrees C while looking into my mouth.
Sounds about right (though I'm not about to check it using a bare
thermocouple).
Dave
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