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Re: specific gravity

PostPosted: Sun Aug 16, 2015 1:45 pm
by fishflipper
If I can find the formula would it be possible?

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Re: specific gravity

PostPosted: Sun Aug 16, 2015 2:03 pm
by lnevo
Yeah

Re: specific gravity

PostPosted: Mon Aug 17, 2015 11:13 am
by cypho
Here is the current standard for the calculation: http://www.teos-10.org/software.htm

But that is probably 100x more complicated needed. I would just use a lookup table or a simple linear plot between two data points in the table near your target range.

Re: specific gravity

PostPosted: Tue Aug 18, 2015 10:21 am
by lnevo
I cannot find a function in that to convert conductivity to SG. Can you be more specific what I'm looking for?

Re: specific gravity

PostPosted: Tue Aug 18, 2015 3:05 pm
by cypho
You are looking for Specific Volume. SV is the inverse of SG: SG = 1/SV

gsw_specvol_CT_exact or gsw_specvol
http://www.teos-10.org/pubs/gsw/html/gs ... exact.html
http://www.teos-10.org/pubs/gsw/html/gsw_specvol.html

Other interesting/useful functions:

gsw_SP_from_C
http://www.teos-10.org/pubs/gsw/html/gsw_SP_from_C.html

gsw_SA_from_SP
http://www.teos-10.org/pubs/gsw/html/gs ... om_SP.html

Re: specific gravity

PostPosted: Wed Aug 19, 2015 6:08 am
by lnevo
Great let me look through that and see what I can gather.

Re: specific gravity

PostPosted: Tue Sep 01, 2015 8:46 am
by fishflipper
Any movement on this?

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Re: specific gravity

PostPosted: Tue Sep 01, 2015 9:02 am
by lnevo
Have not had enough time. Honestly would not get hopes up for it.

Re: specific gravity

PostPosted: Tue Sep 01, 2015 10:08 am
by fishflipper
Ok, I appreciate the effort.

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