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Friday, 21 December 2012

Let's get Mathematical Part 8

Given: centre wheel 80 teeth, third wheel 75 teeth, fourth wheel 70 teeth, escape wheel 15 teeth, third pinion 10 leaves, fourth pinion 10 leaves, escape pinion 7 leaves. Calculate the number of vibrations per hour, per second and the frequency (in Hertz) of the pocket watch.

Vh = Z1•Z3•Z5•(2Ze) = N1
Z2•Z4•Z6

Vh = 80•75•70•(2 x 15) = 18,000
10•10•7

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