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SewerBatt™ from acoustic sensing technology

Environmental Protection Agency (EPA) – Appendices

The United States Environmental Protection Agency (US EPA) is sponsoring a series of investigations into emerging technologies for the assessment of the condition of wastewater collection systems.
SewerBatt™
Wednesday, June 3rd, 2015

One of the these technologies is SewerBatt, a system manufactured by Acoustic Sensing Technology (UK) Ltd. SewerBatt uses acoustic technology to determine the condition of sewers and drain pipes.

SewerBatt uses acoustic technology to detect conditions inside sewers and drainage pipes. An acoustic sensor head comprising a sound source and an array of microphones is positioned in one end of the pipe to be tested. An excitation signal is then propagated along the pipe and the response is recorded and then processed. Features (such as lateral connections and the pipe end) and defects (such as broken pipes and sedimentation) affect the sound either by reflecting a part of it back to the SewerBatt sensor, or by absorbing the sound energy. By comparing the responses recorded with a library of known responses the system will seek to identify specific responses.

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