[TheForge] Re: But how fast does the Alldays & Onions go?

[Mike Spencer]

Oops.  Sorry.  Looks like I sent the previous post twice.  The 2nd one
has spelling checked and stuff.

Frosty> My only question is why use two magnets?

Two magnets doubles the the number of counted pulses per revolution
and so doubles the computed MPH.  So I get more accuracy.

Assume (to make easy numbers) 100 RPM = 10 MPH.  RPM has to drop 10%
to ca. 90 before I see a change to 9 MPH.  With two magnets, 100 RPM =
20 MPH, and if RPM drops 5% to 95, I see a change to 19 MPH.
Actually, I'm using the kilometers/hr setting because kilometers are
smaller than miles so I get more accuracy that way, too.

Frosty> What color are you going to paint it?

Dark green with fire engine red trim.  Almost done, just a couple of
bits that have to be degreased before painting and one bit  that needs
a ladder to reach.

Frosty> Okay, that was two questions.

That's alright, they were small ones.


- Mike

-- 
Michael Spencer                  Nova Scotia, Canada       .~. 
                                                           /V\ 
mspencer at tallships.ca                                     /( )\
http://home.tallships.ca/mspencer/                        ^^-^^