Abstract
Design of an intelligent pressure measurement
technique by Capacitance Pressure Sensor (CPS) using an
optimized Artificial Neural Network (ANN) is reported in this
paper. The objectives of the present work are: (i) to extend the
linearity range of measurement to 100% of input range, (ii)
make the measurement technique adaptive to variation in
physical parameters of diaphragm in CPS like, elasticity
modulus and thickness, permittivity of dielectric constant,
and temperature, and (iii) to achieve objectives (i) and (ii)
using an optimized neural network. A suitable optimal ANN
is added, replacing the conventional calibration circuit, in
cascade to data conversion unit. The proposed measurement
technique is tested considering variations in physical
parameters of CPS, and temperature. These parametric
variations are considered within the specified ranges. Results
show that the proposed intelligent technique has fulfilled the
objectives.
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