Re: Auto Digital Tire Pressure Gauge Survey

B

Big Bill

Guest

• Dec 20, 2004

• #21

On Sun, 19 Dec 2004 18:05:24 -0600, Lawrence Glickman
<[email protected]> wrote:

>I'll go 50/50 with you on this.
>I am dead-on with the comparison between a $3000 Rolex which a friend
>has and drifts 15 minutes / day, and the Timex digital I have, that
>drifts 15 minute a YEAR! Dead on about that, and he will admit to it.

Let's talk about devices that are not obviously in need of repair or
adjustment.
Not even you could believe that 15 minutes per day is the maximum
accuracy that Rolex is capable of.

--
Bill Funk
Change "g" to "a"

 

B

Big Bill

Guest

• Dec 20, 2004

• #22

On Sun, 19 Dec 2004 19:52:23 -0600, Lawrence Glickman
<[email protected]> wrote:

>Nice you have that hobby, but it has sod to do with the subject at
>hand !

The term is "sod all", not "sod".
Even when presented with the term in print, you can't get it right.
It's no wonder your posts about the relative efficacy of digital vs
analog tire pressure gauges are such crap.

--
Bill Funk
Change "g" to "a"

 

B

Big Bill

Guest

• Dec 20, 2004

• #23

On Sun, 19 Dec 2004 23:22:01 -0500,
[email protected] wrote:

>On Sun, 19 Dec 2004 15:42:51 -0600, Lawrence Glickman
><[email protected]> wrote:
>
>>On Sun, 19 Dec 2004 21:31:14 GMT, Lon <[email protected]> wrote:
>>
>>>AZGuy proclaimed:
>>>
>>>> On 18 Dec 2004 09:04:25 -0800, [email protected] wrote:
>>>>
>>>>
>>>>>>I am trying to do a survey on driver's willingness of purchasing a
>>>>>>Digital Tire Pressure Gauge, to ensure driving safety.
>>>>>
>>>>>http://www.getagauge.com/
>>>>>
>>>>>Can't do much better than these - $10, and more accurate than digital.
>>>>>Best for digital is supposedly .5 lbs.
>>>>>I'm all in favor of getting a good quality gauge and using it, but
>>>>>don't think digital is it.
>>>>>Got one as a gift, and stays in the trunk for emergencies only.
>>>>
>>>>
>>>>
>>>> Is that a joke? You'd be lucky if those mechanical gauges were
>>>> accurate to even a pound and a couple drops could ruin what accuracy a
>>>> mechanical gauge did have. You can definitely do better. with
>>>> digital. Not to mention that it's pretty easy to find a digital gauge
>>>> that's at or under $10.
>>>> --
>>>
>>> That misstatement of fact makes the laughably false presumption that
>>> the sensors in an inexpensive digital guage are any more accurate
>>> than the fairly simple mechanisms available for old fashioned
>>> mechanical guages. It also evidences a rather common false
>>> belief that just because something appears to display values at
>>> a higher resolution that it is any more accurate than a possibly
>>> far more accurate display at a lower resolution. Plus a somewhat
>>> challenged grasp of tire inflation where if a pound of absolute
>>> pressure makes any real difference [as opposed to repeatability and
>>> relative pressure] you are driving in a manner where only a fool
>>> would use less than a very very expensive guage.
>>
>>Baloney. Even a $20 electronic watch will actually keep better time
>>than a $3000 Rolex. Don't believe me? I can provide the proof.
>>
>
>If the proof comes in the form that you buy me a digital watch and a
>rolex for comparison, count me in!

No, thew "proof" comes in the form of a friend who has a Rolex that
obviously needs work.
>
>
>
>
>>Digital is the way to go for not only precise readings, but accurate
>>ones as well.
>>
>>Lg
>
>
>later,
>
>tom @ www.CarFleaMarket.com
>
>

--
Bill Funk
Change "g" to "a"

 

L

Lawrence Glickman

Guest

• Dec 20, 2004

• #24

On Mon, 20 Dec 2004 09:27:34 -0500, "C. E. White"
<[email protected]> wrote:

>
>
>Lawrence Glickman wrote:
>
>> I use analog to get me a little *over* in pressure, and then the
>> digital to bleed it down to the precise reading I want. Works for me.
>
>Sigh - and why is this any better than just using the analog
>gauge? Most of the consumer grade digital gauges I see only
>measure in 0.5 lb increments. Don't you think you can read
>an analog gauge this well (+/- 0.25 psi)? My personal
>opinion is that digital gauges give the illusion of being
>very precise without in fact being particularly precise or
>accurate. How does the digital gauge decide what number to
>display? I assume it has some algorithm which translates an
>analog voltage measurement into a digital display, but does
>the algorithm decide that 30.249 lb. as measured is 30.0 lb.
>or 30.5 lb. displayed? How does it translate the air
>pressure into a particular voltage? How accurate is the
>pressure / voltage translation? And then how is the voltage
>sampled and turned into a digital value? All things
>considered, I prefer a good mechanical gauge. Now if someone
>could sell me one that works reliably with water filler
>tractor tires, I'd be really happy.
>
>References:
>
>http://bell.mma.edu/~jbouch/Glossary/Precision.html
>http://www.theweatherprediction.com/habyhints/246/

My theory is you get what you pay for. If you are willing to spend a
whole lot of money, you can get a good digital OR a good analog gauge.

I think the *secret* is to get your *stuff* where the mechanics get
their stuff, like from Snap On, or such, but that truck is hardly ever
in my neighborhood.

I run my 30 lb tires at 35 BTW. Much better handling, less wear and
tear on the side tread when taking corners, the power steering is much
more responsive.

From time to time I check the tread depths -across the tire- with a
depth gauge on my digital vernier calipers. I can see if I have to
adjust the pressure up or down from there. Maybe 35 is OK for now,
but if I am getting excessive wear from the center treads, I know to
back it down to 33.

I know one thing for sure, the 30 suggest inflation pressure is for
ride comfort, not longevity of the tires.

Lg

 

C

C. E. White

Guest

• Dec 20, 2004

• #25

Big Bill wrote:
>
> On Mon, 20 Dec 2004 09:27:34 -0500, "C. E. White"
> <[email protected]> wrote:
>
> >
> >
> >Lawrence Glickman wrote:
> >
> >> I use analog to get me a little *over* in pressure, and then the
> >> digital to bleed it down to the precise reading I want. Works for me.
> >
> >Sigh - and why is this any better than just using the analog
> >gauge? Most of the consumer grade digital gauges I see only
> >measure in 0.5 lb increments. Don't you think you can read
> >an analog gauge this well (+/- 0.25 psi)? My personal
> >opinion is that digital gauges give the illusion of being
> >very precise without in fact being particularly precise or
> >accurate. How does the digital gauge decide what number to
> >display? I assume it has some algorithm which translates an
> >analog voltage measurement into a digital display, but does
> >the algorithm decide that 30.249 lb. as measured is 30.0 lb.
> >or 30.5 lb. displayed? How does it translate the air
> >pressure into a particular voltage? How accurate is the
> >pressure / voltage translation? And then how is the voltage
> >sampled and turned into a digital value? All things
> >considered, I prefer a good mechanical gauge. Now if someone
> >could sell me one that works reliably with water filler
> >tractor tires, I'd be really happy.
> >
> >References:
> >
> >http://bell.mma.edu/~jbouch/Glossary/Precision.html
> >http://www.theweatherprediction.com/habyhints/246/
>
> And why does 1/4, or 1/2, or even 1 PSI make a difference?
> A difference in altitude of 1000 feet will make more than that.
> Knowledge may be power, but it can also be more time-consuming than
> it's worth.

Actually I agree with you. I think an accuracy of +/- 1.5
psi is probably sufficient for most drivers. A precision of
0.5 psi would be nice, since I believe it is more important
to get the left and right side tires to the same pressure
that to get them to the exact manufacturer's recommended
pressure. BTW, I think the change in atmospheric pressure
for a 1000 feet is only about 0.5 psi.

Ed

 

A

Alex Rodriguez

Guest

• Dec 20, 2004

• #26

In article <[email protected]>,
[email protected] says...

>In the meantime, my $20 Timex will have to do. It tells the time,
>date, day, alarm, has a stopwatch function, all that I really need. I
>did have to change the watchband on it though to a Spidel because the
>polymer band was giving me an allergic reaction. Otherwise, it is
>doing a good job for $20. And every bit as accurate as anybody else's
>mechanical watch who I am familiar with.

Actually, your $20 digital watch is more accurate than any mechanical watch.
------------
Alex

 

A

Alex Rodriguez

Guest

• Dec 20, 2004

• #27

In article <[email protected]>,
[email protected] says...

>Most analog gauges you're going to get for car tires are ****. You
>know if you bought it for $7.50, it cost them 35 cents to manufacture
>it.
>Digital uses a pressure transducer that turns pressure into a voltage
>that is read-out as PSI. Chances of these being crap are minimal.
>I haven't done any tests with them yet, because it seems a waste of
>time, but I think dollar for dollar, digital beats analog hands down
>every time.
>We need to do a test under controlled labarotory conditions, and then
>I can prove it beyond all doubt.

I take the analog gauge any day. No batteries to mess with. Easy to use.
Cheap to buy.
------------
Alex

 

A

Alex Rodriguez

Guest

• Dec 20, 2004

• #28

In article <[email protected]>,
[email protected] says...

>I paid $20 for this "Ironman" at Kmart. How much did you pay for
>yours again? $300? I had a Tag Hauer. Was like wearing a brick on
>my wrist. $800 US. Threw it in the garbage ( honest ). Could never
>find batteries for it.

You should have bought a Tag Heuer, then you could have found batteries
for it. I know Radio Shack has batteries that will fit a Tag Heuer.

>If you want the ultimate, get the radiowatch, that auto-synchronizes
>with WWV, an atomic clock, one of many that broadcast around the
>country. In Europe, they have similar watches. THEN you have the
>right time, but the bus will still be late, and the timeclock at work
>will still be *off.*

These will be the most accurate watches, but all the ones I have seen are
fugly.
------------
Alex

 

T

Ted Mittelstaedt

Guest

• Dec 21, 2004

• #29

"Lon" <[email protected]> wrote in message
news4sxd.290389$R05.263213@attbi_s53...
> Exposing his ignorance for all to be amazed, Lawrence Glickman proclaimed:
>
> > All of your *spew* has **** all to do with tire pressure gauges.
> > NOBODY USES BOURDON TUBE PRESSURE TRANSDUCERS in tire pressure gauges
>
> 5 seconds with Google would prove what a ignorant sput you are...as
> if it needed proving, plonkbait.

For crying out loud - go buy a digital tire guage then an analog tire guage
and check
the calibration of the analog guage against the digital one - and mark any
difference
on the analog guage. Then both your guages will be inaccurate by the same
amount!

Ted

 

D

DTJ

Guest

• Dec 22, 2004

• #30

On Mon, 20 Dec 2004 10:33:00 -0700, Big Bill <[email protected]> wrote:

>And why does 1/4, or 1/2, or even 1 PSI make a difference?

Because having tires that are inflated at different pressures can
cause a car to spin when stopping on ice.

>Knowledge may be power

Yes. Maybe you should respect those who have it a little more (which
does not imply that you do not have it.)

 

L

Lon

Guest

• Dec 22, 2004

• #31

AZGuy proclaimed:


> Well, you beat me too it. It's amazing how "knowledgeable" ol Lon
> claimed to be yet doesn't even know how a mechanical tire pressure
> gauge works. He must be thinking of those REALLY accurate stick
> gauges.

So are you a Glickman sock puppet claiming that there are no
bourdon tube analog tire pressure guages? If so, you too are
not only ignorant but too lazy to check your facts.

 

L

Lon

Guest

• Dec 22, 2004

• #32

Alex Rodriguez proclaimed:

> In article <[email protected]>,
> [email protected] says...
>
>
>>I paid $20 for this "Ironman" at Kmart. How much did you pay for
>>yours again? $300? I had a Tag Hauer. Was like wearing a brick on
>>my wrist. $800 US. Threw it in the garbage ( honest ). Could never
>>find batteries for it.
>
>
> You should have bought a Tag Heuer, then you could have found batteries
> for it. I know Radio Shack has batteries that will fit a Tag Heuer.

Yup. As do most watch stores. The hard part is finding a store that
has the little watertight gasket on the back, as only Swisswave tends
to carry them.

>>If you want the ultimate, get the radiowatch, that auto-synchronizes
>>with WWV, an atomic clock, one of many that broadcast around the
>>country. In Europe, they have similar watches. THEN you have the
>>right time, but the bus will still be late, and the timeclock at work
>>will still be *off.*
>
>
> These will be the most accurate watches, but all the ones I have seen are
> fugly.

The Junghans models aren't too bad looking, I just happen to prefer
the looks of the Tag Heuer chronometers with the sport band.

 

L

Lon

Guest

• Dec 22, 2004

• #33

Alex Rodriguez proclaimed:

> In article <[email protected]>,
> [email protected] says...
>
>
>>In the meantime, my $20 Timex will have to do. It tells the time,
>>date, day, alarm, has a stopwatch function, all that I really need. I
>>did have to change the watchband on it though to a Spidel because the
>>polymer band was giving me an allergic reaction. Otherwise, it is
>>doing a good job for $20. And every bit as accurate as anybody else's
>>mechanical watch who I am familiar with.
>
>
> Actually, your $20 digital watch is more accurate than any mechanical watch.

I have a real Tag Heuer and a fake Tag Heuer with the stereotypical
cap-tuned HongKong innards. No surprise, but the fake one is just a
tad more accurate, and the real one gets adjusted by Swisswave every
time the battery needs changing.

 

N

[email protected]

Guest

• Dec 22, 2004

• #34

On Wed, 22 Dec 2004 04:20:01 GMT, Lon <[email protected]> wrote:

>Alex Rodriguez proclaimed:
>
>> In article <[email protected]>,
>> [email protected] says...
>>
>>
>>>In the meantime, my $20 Timex will have to do. It tells the time,
>>>date, day, alarm, has a stopwatch function, all that I really need. I
>>>did have to change the watchband on it though to a Spidel because the
>>>polymer band was giving me an allergic reaction. Otherwise, it is
>>>doing a good job for $20. And every bit as accurate as anybody else's
>>>mechanical watch who I am familiar with.
>>
>>
>> Actually, your $20 digital watch is more accurate than any mechanical watch.
>
> I have a real Tag Heuer and a fake Tag Heuer with the stereotypical
> cap-tuned HongKong innards. No surprise, but the fake one is just a
> tad more accurate, and the real one gets adjusted by Swisswave every
> time the battery needs changing.

If there are quality 'fakes' out there, why pay for the real one?
Plus, why the heck do people pay for such expensive watches?

Just asking.....


later,

tom @ www.URLBee.com