Talk:Vernier scale
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[edit] Older Image
I have replaced this image with better quality ones from German wikipedia which have a greater explanatory value. Lumos3 23:03, 30 May 2005 (UTC)
[edit] Vernier scale on a slide rule?
I have never come across this and the Slide rule article makes no mention of it. I think it should be deleted. Lumos3 08:38, 13 Jun 2005 (UTC)
- It wouldn't make much sense; a vernier would only work against a linear scale and there's usually only one linear scale on a slide rule; the rest are logarithmic scales.
- Atlant 12:26, 13 Jun 2005 (UTC)
Replaced slide rule by theodolite as an example. Lumos3 13:24, 13 Jun 2005 (UTC)
[edit] linear scale, zero point
linear vs logarithmic, not linear vs angular. this should be clarified
I don't understand how the zero point of the vernier/indicating scale is coincident with the start of the data scale. It is coincident with the index of the "slider".
- I have added some clarifications to the article which I hope explains things. Please come back if its not clear as this dialogue can only improve the article for new readers. Lumos3 13:22, 24 September 2005 (UTC)
[edit] Misreading?
On the closup picture (with the 2 red markings), you can see that on the vernier scale, the line that matches up exactly, is the ",6" line and not the ",58" one.
So the measurment should be 3,6 mm and not 3,58 mm.
Unless with "closest alignment" is really meant that one that comes the closest, but doesn't line up exactly. (Which is what I learned).
Vernier scales are hard enough to read in real life; the only person who could say with any certainty which mark lined up is the photographer at the time of the photograph. Parallax error for the win. - Toastydeath 02:02, 6 September 2006 (UTC)
- I Have added a note to this effect. This is also noted on the German article. Lumos3 09:23, 28 October 2006 (UTC)
