| Re: Why can't car speedos be accurate? |
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Group: uk.transport · Group Profile
Author: NotMeNotMe Date: Sep 16, 2008 16:28
On 15 Sep, 17:35, "Mortimer" privacy.net> wrote:
> Do any modern cars still use mechanical communication (rotating cable in a
> sheath) between the wheels and the gauge, or do they all use Hall-effect
> sensors (like bicycle speedos) or light-and-rotating-disc sensors (like
> computer mice) these days?
Bike speedos aren't hall effect, they are magnet + a reed switch, once
every revolution the switch opens and closes.
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