Title :
Low–cost capacitive sensor for wells level measurement
Author :
Bande, Vlad ; Ciascai, Ioan ; Pitica, Dan
Author_Institution :
Appl. Electron. Dept., Tech. Univ. of Cluj Napoca, Cluj-Napoca, Romania
Abstract :
The proposed system wants to efficiently substitute the existing level sensors mounted in the dam wells based by its low cost and better precision. The system is been designed around a special designed capacitive sensor composed of eight independent copper pour areas distributed in mirror on from each other. The unknown variables of the resulted mathematical equations are the capacitances and the height of the liquid column (the level of the liquid). The capacitances are been calculated by implementing a measurement system around and AVR microcontroller and a very fast LT1011 comparator.
Keywords :
capacitive sensors; comparators (circuits); dams; level measurement; mathematical analysis; measurement systems; microcontrollers; AVR microcontroller; LT1011 comparator; copper pour area; dam wells; level sensor; liquid column; low-cost capacitive sensor; mathematical equation; measurement system; well level measurement; Capacitance; Capacitors; Dielectric measurements; Equations; Mathematical model; Microcontrollers;
Conference_Titel :
Electronics Technology (ISSE), 2010 33rd International Spring Seminar on
Conference_Location :
Warsaw
Print_ISBN :
978-1-4244-7849-1
Electronic_ISBN :
978-1-4244-7850-7
DOI :
10.1109/ISSE.2010.5547303
