The article "On-line Density Meter Calibration and Measurement Application" firstly introduces the definition of density and density coefficient, and then introduces the densitometer online calibration procedure and data processing method, and gives and gives the deviation from calibration temperature, pressure and density value Affected correction formula.
Standard Density Measurement
Furthermore, formulas such as correcting the measured value of the online densitometer to the standard density, calculating the density coefficient and indication error of the online densitometer, and calculating the actual density are explained.
Calculation of Density Coefficient and Indication Error of Online Densitometer
actual density calculation
Finally, the application example of online density meter is introduced.
in conclusion
( 1 ) On-line density meters and mass flow meters capable of measuring liquid density, like other measuring instruments, should be verified before use and confirmed after use, especially online density meters should be verified or calibrated online.
( 2 ) Proposing the concept of density coefficient and correcting calculation of deviation from calibration temperature and pressure are indispensable technical means and methods for on-line verification or calibration.
( 3 ) The use of an online density meter can effectively monitor the density change in the measurement process, avoid measurement inaccuracy due to process conditions and lack of representativeness of manual sampling, and provide a guarantee for accurate measurement.
( 4 ) In view of the fact that there is no online verification or calibration method for online densitometers at present, users are expected to explore the possibility of adopting relevant national or international standards in the measurement process, and can refer to this article to formulate a documented calibration method to gradually realize online densitometers. Scientific and standardization of density meter measurement.
