PMEL Forum

General => General Discussion => Topic started by: skolito on 02-12-2008 -- 12:25:40

Title: Does anyone have a good UNC. calculator
Post by: skolito on 02-12-2008 -- 12:25:40
The one we use is giving us bogus numbers and I'm looking for a new one.
Title: Re: Does anyone have a good UNC. calculator
Post by: flew-da-coup on 02-12-2008 -- 12:39:07
Quote from: skolito on 02-12-2008 -- 12:25:40
The one we use is giving us bogus numbers and I'm looking for a new one.

I recommend doing it "manually". Make up a general worksheet and use it with a hand held calculator. It is hard to go wrong there. :-)
Title: Re: Does anyone have a good UNC. calculator
Post by: skolito on 02-12-2008 -- 12:42:22
Thats going to suck when I have a scope or high end meter
Title: Re: Does anyone have a good UNC. calculator
Post by: flew-da-coup on 02-12-2008 -- 13:14:38
Quote from: skolito on 02-12-2008 -- 12:42:22
Thats going to suck when I have a scope or high end meter

I know, but I have had problems in the past with Uncert Calcs. too. I have had to do it up to 50GHz down to Gage Blocks. I feel your pain. If you find something out there that works you must let me know.
Title: Re: Does anyone have a good UNC. calculator
Post by: skolito on 02-12-2008 -- 13:30:08
its not so bad with met cal but I handle mostly phys/d and it gets a bit aggravating. I think the funniest thing is when they want UNC. on a 77bn cause thats their standard for cal.
Title: Re: Does anyone have a good UNC. calculator
Post by: Hawaii596 on 02-13-2008 -- 09:49:10
I can't speak pro or con for "Uncertainty Calculator" package, as I've had difficulty figuring out how to use it.  And I don't know if this is the package is you are referring to.  But below is the link to download it (freeware) if you want:

www[dot]isgmax[dot]com/uncertainty_freeware[dot]htm

If this is the package giving bogus readings, I'd like to know.

Also, I am personally acquainted with the man who wrote it.  He still manages a very high end lab.  His name and email should be out there (I won't post here).  If you have problems with his software, send him an email and let him know.
Title: Re: Does anyone have a good UNC. calculator
Post by: skolito on 02-13-2008 -- 12:31:20
Thanks,

No this is not the one I haven't a clue where our QA got ours from but it is really questionable