Re: Counting Bike Wheel Revs

Have you seen the reed switch, I was under the impression it was a hall
sensor most of them....

"Paul E. Bennett" <peb@xxxxxxxxxxxxxxxxxx> wrote in message
news:dcm369$mjm$1$830fa79d@xxxxxxxxxxxxxxxxxxx
> Richard Sloan wrote:
>
>> Been looking all over the web for ideas.... looking for the absolute
>> cheapest method, in a mass production environment to count the wheel
>> revolutions of a pedal bike.
>>
>> Hall sensors are too much....
>>
>> Would a small coil of wire on PCB and a magnet be the solution?
>>
>> Any other ingenious cheap methods?
>>
>> Accuracy does not need to be 100% so the odd missed revolution is
>> fine.....
>
> My Sigma Sport 600 bike speedometer, odometer and trip calculator wa quite
> innexpensive as a complete system (approx UKP12.00) and uses a magnet on
> the spokes and a reed switch in the fork mounted sensor. A magnet and a
> coil would probably do as well.
>
> --
> ********************************************************************
> Paul E. Bennett ....................<email://peb@xxxxxxxxxxxxxxxxxx>
> Forth based HIDECS Consultancy .....<http://www.amleth.demon.co.uk/>
> Mob: +44 (0)7811-639972
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> ********************************************************************


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Relevant Pages

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