Re: Tire Pressure Sensor

On Sat, 09 Apr 2005 05:37:33 GMT, Mac <foo@xxxxxxx> wrote:

>On Fri, 08 Apr 2005 21:55:44 -0700, Luhan Monat wrote:
>
>>
>>>
>>> A tiny generator with an unbalanced weight on the shaft. The generator
>>> spins with the wheel, is shaft is held stationary by the weight (like a
>>> self winding watch).
>>> The generator keeps a small supercap charged and wakes up the monitor
>>> logic when it begins turning.
>>>
>>> One could conveivably extract enough power from such a setup to power a
>>> small LED display on the wheel, similar to one of those spinning clocks.
>>> Something I know we all need. :-)
>>>
>>
>> This suggests another project. Timed LED's on the wheel that make
>> patterns or spell out messages at night. Devices such as this are
>> generally known as 'propeller clocks'.
>
>Actually, I think this would would be good for automotive hubcaps. I think
>people would buy them by the thousands if they were cheap enough, and if
>there were an easy way to put messages or graphical displays on them.
>
>I wouldn't try to extract power from the rotation, though. I would
>just sense the rotation to keep the message upright.

The below hokeyspokes could probably be adapted to the car tire
hub caps. Back in the 50's you could get hub caps with bearings
and a weighted bottom. It stood still while the tire rotated. I
remember a 55 ford crown vic with this setup. Lowered in the rear
with finder skirts, and the non rotating hub caps on the front.
The hub caps were very big with a picture of a hula girl on them.
Had lights in the front findre wells so you could see the action
at night. Where is my Brill Cream?

http://www.drewish.com/blogger/archives/2005/03/17/2sided_pov_toy.html
http://www.hokeyspokes.com/index.shtml
http://www.treehugger.com/files/2004/12/spoke_n_wheel_l.php

.

Relevant Pages

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