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iPhone strobe app shows my Mark V runs fast

Posted: Fri Jan 02, 2015 9:50 pm
by algale
I don't own a real timing strobe but I found an app for the iPhone (Strobe Light Tachometer) that allows you to use it as a strobe.

Curiosity got the better of me and it appears my low speed is actually running a bit fast. Rather than 700 rpm I'm getting about 760 rpm (I say "about" because with the free version of the app you can only adjust the strobe in 10 rpm increments).

I've not noticed any performance problems and my mantra is if it ain't broke don't fix it. I'm inclined to leave it be unless someone can give me a reason to worry.

Al

Re: iPhone strobe app shows my Mark V runs fast

Posted: Fri Jan 02, 2015 11:09 pm
by JPG
Well if the resolution is 10 rpm, what is the 'accuracy'?

FWIW belt wear causes speed variation.



Sweat it not! ;)


What was it at 'fast'?