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9. CORRECTIONS IN
DENSITY CALCULATION
This density meter, which operates on the basis of phase difference measurement by microwaves
makes automatic corrections to the measured phase angel for the fluid temperature and phase
angel rotation before making the density calculations for the measured substance.
This chapter describes the methods for corrections and the density calculations.
9.1 Density Calculation
This density meter measures the phase lag θ
basis, and the phase lag θ
being proportional to the density is used to obtain the density. The density (X) of the measured
matter is calculated in accordance with the following equation.
X= C ×（ a × △θ ） ＋ b
where
X
△θ
a
b
c
in the measured matter, the difference △θ(= θ
2
： Measured density value (%TS)
： Phase difference. △θ = θ
： Density line slope;
： Density intercept;
： Density multiplier (Density correction factor.)
75
in the density zero water (zero water), which is the
1
−θ
(degrees)
2
1
6 F 8 A 0 5 2 1
- θ
) of which
2
1
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