TY - GEN
T1 - An intelligent instrument for measuring liquid level
AU - Roy, B. K.
AU - Santhosh, K. V.
PY - 2011
Y1 - 2011
N2 - In this paper, we propose a scheme to increase the linearity range of the capacitance level sensor (CLS) and make independent of the permittivity of the liquid used. The capacitance from the CLS is first converted to frequency by a timer circuit and then frequency is converted to voltage by a frequency to voltage converter. The relation is nonlinear and depends on permittivity of liquid. Artificial Neural network (ANN) model is used in cascade with the frequency to voltage converter. This arrangement has the effect of linear relation between level to be measured and the output of the ANN model. Further this is independent of permittivity of liquid used. The proposed ANN-based scheme incorporates intelligence into the sensor. Using Matlab environment the training has been done to design a model of ANN.
AB - In this paper, we propose a scheme to increase the linearity range of the capacitance level sensor (CLS) and make independent of the permittivity of the liquid used. The capacitance from the CLS is first converted to frequency by a timer circuit and then frequency is converted to voltage by a frequency to voltage converter. The relation is nonlinear and depends on permittivity of liquid. Artificial Neural network (ANN) model is used in cascade with the frequency to voltage converter. This arrangement has the effect of linear relation between level to be measured and the output of the ANN model. Further this is independent of permittivity of liquid used. The proposed ANN-based scheme incorporates intelligence into the sensor. Using Matlab environment the training has been done to design a model of ANN.
UR - https://www.scopus.com/pages/publications/80052202072
UR - https://www.scopus.com/inward/citedby.url?scp=80052202072&partnerID=8YFLogxK
U2 - 10.1109/PACC.2011.5978861
DO - 10.1109/PACC.2011.5978861
M3 - Conference contribution
AN - SCOPUS:80052202072
SN - 9781612847641
T3 - Proceedings of 2011 International Conference on Process Automation, Control and Computing, PACC 2011
BT - Proceedings of 2011 International Conference on Process Automation, Control and Computing, PACC 2011
T2 - 2011 International Conference on Process Automation, Control and Computing, PACC 2011
Y2 - 20 July 2011 through 22 July 2011
ER -