jCandlish
Titanium
- Joined
- Jun 1, 2011
- Location
- Oberaargau, Swizerland
{Moderator note... This entire off-topic exchange was separated from another thread. That's why the quote below makes no sense.}
And that is why Tolerance Classes scale by factors of 10!
The factor of 10 thing is just wrong. Nyquist says >2, and he gives a rigorus proof.
And that is why DIN ISO 3650 scales gauge block tolerance classes by factors of 2.
Regards
<jbc>
To be assured of the accuracy of the measurement of any dimension, the instrument should have a rated accuracy ten times better than the tolerance being measured.
'
When you get into very tight tolerances, this becomes impractical. The technology simply does not exist at any reasonable cost.
Please understand that resolution and accuracy are not the same thing. A device with .00005" resolution will typically have a rated accuracy twice that or larger.
- Leigh
And that is why Tolerance Classes scale by factors of 10!
The factor of 10 thing is just wrong. Nyquist says >2, and he gives a rigorus proof.
And that is why DIN ISO 3650 scales gauge block tolerance classes by factors of 2.
Regards
<jbc>
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