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SEWERBATT - Rapid & Reliable Identification of Obstructed Pipelines

SewerBatt – Acoustic Sensing Technology



Reliable information on pipe condition is needed to accurately estimate the remaining service life of wastewater collection system assets and target maintenance and repair activities. SewerBatt™ is an innovative technology that used acoustics to locate defects and blockages in sewers and drainage pipes.

Features and benefits of the technology are summarised below.

Feature

Benefit

Speed of measurement (about 10 seconds)

Rapid evaluation of pipelines

“Traffic Light” and full data measurement available

Rapidly identify good pipelines and focus resources on problems

The equipment only needs to be in the manhole and does not need to be traversed through the pipe

Blockages can be identified where CCTV cannot access due to obstructions

Digital acoustic data can be easily stored to form a database of signatures

Repeatability of measurements over time to aid sewer infrastructure managers

Light weight equipment with no manhole entry required.

Acoustic surveys can be carried out by a single operator

How it Works

The SewerBatt™ inspection system comprises a ruggedised electronic module with notebook, cables, software and an acoustic sensor. The acoustic signatures can be used to locate blockages and structural defects, determine the level of water, pipe length and diameter and the amount of deposited sediment in sewer pipes.

It operates as follows:

The electronic module communicates with the notebook via a USB interface.

The acoustic sensor is connected to the electronic module via an armoured, waterproof cable. Currently two standard versions of the acoustic sensor are available: one for pipes with a diameter range of 75-225mm; and the second for pipes with a diameter range of 150-600mm (Note: Sensors for pipes of larger diameter can be supplied if required).

The acoustic sensor is inserted into a manhole and a sound wave is emitted for around ten seconds.

The acoustic response of the pipe is then recorded and analysed to produce a “signature” for the pipe. The equipment only needs to be in the manhole and does not need to be traversed through the pipe. Digital acoustic data can be easily stored to form a database of signatures.

The analysis is quick and gives an immediate indication of defect type and its location. Therefore the main practical advantage of this method over traditional inspection methods, such as CCTV, is the speed of measurement and the ability to measure from the manhole only. Acoustic surveys can be carried out by a single operator as the equipment is lightweight and no man entry is ever required.

SewerBatt Flyer 

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