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Related Experiment Video

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Operant Learning of Drosophila at the Torque Meter

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Smart Water Meter Using Electrical Resistance Tomography.

Chenning Wu^1,2, Martin Hutton³, Manuchehr Soleimani⁴

¹Engineering Tomography Laboratory (ETL), Department of Electronic and Electrical Engineering, University of Bath, Bath BA2 7AY, UK. cnw24@bath.ac.uk.

Sensors (Basel, Switzerland)

|July 13, 2019

Summary

This study introduces electrical resistance tomography for smart wastewater metering in large sewer pipes. The developed sensor accurately measures flow rates and materials, improving sewer system management.

Keywords:

electrical resistance tomography smart water meter wastewater management

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Area of Science:

Engineering
Environmental Science
Sensor Technology

Background:

Sewer system management relies on accurate flow monitoring.
Obstructions in discharge pipes cause significant costs.
Existing methods may lack precision for complex wastewater characteristics.

Purpose of the Study:

To develop an embedded sensor for smart wastewater metering using electrical resistance tomography.
To measure flow rates and constituent materials in large-diameter discharge pipes (>250 mm).
To provide a cost-effective solution for real-time sewer flow monitoring.

Main Methods:

Designed bespoke electronics hardware and signal processing for an embedded sensor.
Utilized electrical resistance tomography (ERT) modality.
Implemented an analogue signal conditioning module and zero-cross switching scheme with a real-time operating system.

Main Results:

Achieved a data acquisition speed of 14 frames per second (fps).
Maintained an overall signal-to-noise ratio of at least 59.54 dB.
Demonstrated high resolution (0.04% sample size) and successful capture of dynamic movements.

Conclusions:

The developed ERT sensor is effective for smart wastewater metering in large pipes.
The system offers real-time measurement capabilities with high accuracy and resolution.
This technology can enhance sewer system management by detecting flow properties and obstructions.