Radial seperation Value

[TAMIL]

Hi All,

As per the title, anyone heard about the term "Radial Separation Value" during a Sphere measurement?

Thanks in Advance.

[RandomJerk]

I think Zeiss used to call it Chebyshev's method. Technically, it is a Chebyshev method.

This is anecdotal, I think I once verified this, but I can't recall. MRS is the method that is supposed to be used when calculating roundness per the ANSI standard. But I could be wrong.

[JEFMAN]

As RandomJerk said, it's Chebychev's method, so Minsep on PC-DMIS.
From taylor Hobson
Minimum Zone Reference Circles (MZCI)It is defined as two concentric circles positioned toenclose the measured profile such that their radialdeparture is a minimum. The Out-of-Roundnessvalue is then given as the radial separation of the two circles.

https://pdfs.semanticscholar.org/15d6/fd70a8ba19bebf008bdb33b37c83ccca1b2a.pdf

[TAMIL]

Thanks for the responses.

RandomJerk Now I am using the Zeiss machine too, Will look into it.

JEFMAN Thanks for the link.