Standard, calibrated, lengths?

[plier_able]

It is easy to buy standard weights for calibrating/checking balances.

But can you get standard lengths (pieces of steel?) for checking that the output from digital (in particular) vernier calipers are accurate?

Or is there some other completely different way to go about this?

 

[ATC]

These?

http://www.use-enco.com/CGI/INLMK3?PMK0NO=1446560

*Edit*
I think you're looking for "Gauge blocks"


http://www.globalindustrial.com/p/t...mpaignID=T9A&gclid=CNbhg5-x6LkCFUlp7Aod1BQAQw

 

[justanengineer]

Youre looking for a "micrometer standard." Normally they come with one from the factory for spot checking each mic, but you can buy them in sets from the usual suppliers. Depending on the work being done (hobby vs pro), its standard practice in industry to send mics out to the cal/gage lab every so often to be certified. Its also standard practice to regularly inspect the anvils in-house using an optical flat and monochromatic light source for parallelism and flatness.

FWIW, you can also do this with gage blocks which IMHO are a million times more useful otherwise. Depends on how you wanna do it.

 

[Steinmetz]

It is easy to buy standard weights for calibrating/checking balances.

But can you get standard lengths (pieces of steel?) for checking that the output from digital (in particular) vernier calipers are accurate?

Or is there some other completely different way to go about this?

Use gage blocks.

 

[gte718p]

X3 guage blocks. Come in sizes from .00001" to really big. I've personally seen 32" and im sure bigger ones are out there. The normal sizes are not to expensive unless you want very high tolerances. The outlying stuff gets very expensive very quick. My calipers are checked daily and calibrated/certified if they fail daily or quarterly.