Design of an Adaptive Calibration Technique Using Data Fusion for Pressure Measurement

Santhosh, K. V.; Navada, Bhagya R.

doi:10.1007/978-981-10-7901-6_88

Cited by 1 publication

(1 citation statement)

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“…Fibre Bragg Grating is found to exhibit much better characteristics in terms of pressure sensitivity, compactness, resolution, linearity, and repeatability. Improving the linearity of the diaphragm-based pressure sensor using a neural network is discussed by Santhosh and Navada (2018). Chattopadhyay and Chowdhury (2017) discuss the measurement of the heart rate of a human being by using an array of capacitive sensors mounted on the wrist whose capacitance changes due to blood flow caused by heart contraction and expansion.…”

Section: Introductionmentioning

confidence: 99%

Capacitance pressure sensor with S-type electrode for improved sensitivity

Venkata

Rao

2021

Transactions of the Institute of Measurement and Control

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This paper aims at designing a differential pressure sensor. The objective of the work is to design and fabricate the electrodes of a capacitive pressure sensor, so as to measure absolute and differential pressure accurately with improved sensitivity. In place of conventional parallel plate diaphragm, S-type electrodes are proposed in the present work. The work comprises of study of the proposed design in terms of a mathematical model, input-output behavior along with detailed analysis of pressure distribution pattern. Output capacitance obtained for changes in pressure is converted to voltage with the suitable signal conditioning circuit and data acquisition system to acquire the signal on to a PC. A neural network model is designed to compensate the nonlinearities present in the sensor output. Input-output characteristics of the designed sensor shows an improved response as compared with existing pressure sensors.

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Section: Introductionmentioning

confidence: 99%