Electromechanical characterization of resistive sensor for application in water metering

Gonçalves, Laís dos Santos; Barbosa, Carlos Roberto Hall; Medeiros, Khrissy Aracélly Reis

doi:10.1016/j.measen.2021.100093

Cited by 1 publication

(1 citation statement)

References 5 publications

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“…However, it is possible to verify some studies that demonstrate the applicability of this type of sensor for this purpose. For example, Fan et al [21] employ the sensor to monitor the airflow velocity in real-time, helping to save energy consumption in a wastewater treatment process; Xu et al [22] report a way to monitor water flow in pipelines using a flexible resistive film; Srinivasan, Sen, Kumar and Sabebu [23] use the sensor as a cantilever beam for flow measurement for moderate flow applications; Stewart, Fox and Harnett [24] developed a velocity sensor using the bend sensor for application in streams; Gonçalves, Medeiros, and Barbosa [25] presented a study of the resistive sensor application to measure the flow of water through the comparison between the results of experimental electromechanical characterization with a computer simulation, and these same authors [26] also proposed an adaptation of the valves commonly present in residential hydraulic systems, using a bend sensor, and demonstrated a new methodology for measuring the volume of water consumed in autonomous units.…”

Section: Thin-film Resistive Sensormentioning

confidence: 99%

Proposition of water meter for buildings based on a thin-film resistive sensor: electromechanical and thermal characterizations

Gonçalves,

Medeiros,

Barbosa

2023

J. Phys.: Conf. Ser.

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Notoriously, measurement proves to be essential to encourage water conservation. Thus, this work characterizes two thin-film resistive sensors (bend sensors) with different coatings aiming at their application to measure water consumption. For this, the individual water measurement system is presented and discussed briefly. Then, resistive sensor parameters and operating principles are detailed, as well as the mathematical formulation of the correlation of the sensor resistance with the flow velocity. Methodologically, the system developed for the electromechanical and thermal characterization of the sensor is presented. The results allowed obtaining a quadratic relationship between the sensor deflection angle and the resistance. Furthermore, it was observed that the polyester-coated sensor presented a low hysteresis value when subjected to temperature variation, obtaining a negative linear relationship between the sensor resistance and temperature. In turn, the polyimide-coated sensor did not show low hysteresis when exposed to temperature change and flexed at 50° and 70° angles. Finally, it is proposed for future work computer simulations and experimental tests to confirm the applicability of the sensor for water measurement.

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