Ratio, I believe is simple scaling. Basically to make a panel meter read in engineering units.
Offset, is nominally zero, but there are some instances in which you would like a measuremnt to have a non-zero origin.
Ratiometric is something different in which power supply variations are compensated for because the reference is derived from the supply.
Offset, is nominally zero, but there are some instances in which you would like a measuremnt to have a non-zero origin.
Ratiometric is something different in which power supply variations are compensated for because the reference is derived from the supply.