Etalon Micrometer- How To Read Vernier

markba633csi

markba633csi

Mark Silva
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Just bought a model 23c Etalon in good shape, it is 0-1 inch but it has a 5 digit vernier on the sleeve instead of the more usual 10 like a Starrett. Or is it not a vernier at all? Advice anyone?
Mark S.
 
Never seen one like that, can you post a picture?
 
G'Day Mark,
Without seeing a picture it sounds like it has 2/10ths resolution, I have a VIS metric micrometer with the same type of 5 line vernier scale which reads to .002 mm.
Regards,
Martin
 
I have a V anvil micrometer like that. The barrel should have a mark between each 0.001" graduation (which gives you 0.0005") then you add what is on the vernier to either 0.0000 or 0.0005 to get the 1/10,000 value.
 
markba633csi said:
Just bought a model 23c Etalon in good shape, it is 0-1 inch but it has a 5 digit vernier on the sleeve instead of the more usual 10 like a Starrett. Or is it not a vernier at all? Advice anyone?
Mark S.
Click to expand...

Without seeing a closeup of your mike, my B & S model 200 has a 1-5 vernier scale. The barrel divisions are .0005" and the vernier further defines to .0001" so a vernier reading of 4 would be either .0004" or .0009" depending on whether you were past a whole or half thousandth division.

Bob
 
RJSakowski said:
Without seeing a closeup of your mike, my B & S model 200 has a 1-5 vernier scale. The barrel divisions are .0005" and the vernier further defines to .0001" so a vernier reading of 4 would be either .0004" or .0009" depending on whether you were past a whole or half thousandth division.

Bob
Click to expand...

Etalon mics are exactly like Bob states.
 
Thanks guys, it is as Chipper and Bob described- I had not realized the marks in between 0.001 were used for that purpose- learn something new every day... I just read that the plastic (bakelite)? side panels are for isolating the mic body from the heat of your hands- very cool. The cosmetics on this one are not perfect, but for 30.00 I can't complain too much- I could have paid much more for a mint condition one but I doubt it would function any better.
Mark S.
 
That's cool, thanks. That's reading 0.0636. Took me a second to figure that one out. The 1/2 thou marks are a little confusing at first glance.
 
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