Recommendations for the installation of automatic liquid level and temperature measuring instruments on storage tanks

1964 ◽  
Keyword(s):  
Liquid Level ◽  
Measuring Instruments ◽  
Storage Tanks ◽  
Temperature Measuring

scholarly journals Non-linear model predictive control of conically shaped liquid storage tanks

2018 ◽  
Vol 11 (2) ◽  
pp. 141-146
Author(s):  
Martin Klaučo ◽  
Ľuboš Čirka ◽  
Juraj Kukla
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Traditional Approach ◽  
Liquid Level ◽  
Storage Tanks ◽  
Level Control ◽  
Time Dynamics ◽  
Analysis And Design ◽  
Liquid Storage ◽  
Non Linear

Abstract This paper deals with the analysis and design of a model predictive control (MPC) strategy used in connection with level control in conically shaped industrial liquid storage tanks. The MPC is based on a non-linear dynamic model describing changes of the liquid level concerning changes in the inlet flow of the liquid. Euler discretization of the dynamic system was applied to transform con-tinuous time dynamics to its discrete-time counterpart used in non-linear MPC (NMPC) design. By means of a simulation case study, NMPC has been shown to track the changes of the liquid level, hence provides increased control performance. This paper also compares the traditional approach of optimal control, linear MPC, with the NMPC strategy.

scholarly journals The Manufacturing of Low Temperature Measuring Devices Using a PT-100 Sensor Based on ATmega328 Microcontroller

2020 ◽  
Vol 21 (1) ◽  
pp. 26
Author(s):  
Bhakti Hardian Yusuf ◽  
I Made Satriya Wibawa ◽  
I Ketut Putra
Keyword(s):  
Low Temperature ◽  
Coefficient Of Determination ◽  
Measuring Instruments ◽  
Measured Temperature ◽  
Measuring Instrument ◽  
Reference Measuring ◽  
Measuring Device ◽  
Temperature Measuring ◽  
Measurement Results ◽  
Reference Measuring Instrument

A low temperature measuring device has been successfully developed using a microcontroller-based PT-100 sensor ATmega328. The temperature is measured using a PT-100 sensor, as the main processor using the ATmega 328 microcontroller, and the measured temperature is displayed on a 2x16 LCD. The results of the calibration at a temperature of 77 - 300 K against the reference measuring instrument obtained that, the ratio of the measured temperature between the reference measuring instrument and the measuring instrument made was 0.9893 ± 3.69 K and the coefficient of determination R2 = 0.9987. This indicates that the measurement results of the measuring instruments made have an accuracy level of 98.93% and a precision of 99.87%. Keywords: Low temperature, PT-100 Sensor, ATmega328 Microcontroller, LCD 2x16

A Procedure and a Hardware-Software System for the Automated Calibration of Temperature Measuring Instruments

2013 ◽  
Vol 56 (5) ◽  
pp. 497-502 ◽  
Author(s):  
Yu. I. Shtern ◽  
Ya. S. Kozhevnikov ◽  
R. E. Mironov ◽  
M. Yu. Shtern ◽  
I. S. Karavaev
Keyword(s):  
Measuring Instruments ◽  
Software System ◽  
Temperature Measuring ◽  
Automated Calibration
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