HOW DOES IT WORK?
Acoustic Pipeline Monitoring
How does the technology collect data?
The SL-RAT is composed of two components – the Transmitter (or TX unit) and the Receiver (or RX unit). Each SL-RAT device is sold or leased as a uniquely configured “pair” – with the TX providing the active acoustic transmission through the pipe (think of the TX as “yelling” down the pipe) and the RX providing the microphone and signal processing capabilities to listen and interpret the received acoustic signal (think of the RX as the brain “listening” for the blockage and processing the blockage assessment result). Additionally, each SL-RAT component is equipped with GPS and the ability to communicate between the TX and RX via RF – thus providing your organization with world class data labeling, data registration, and test validation capabilities.
How do clients use our data?
During the inspection program, clients are given a logon to view our real time data collector which they can use to identify blocked line segments and deploy their maintenance crews immediately during the project.
The SL RAT technology is based on measuring the signal received from an active acoustic transmission within a sewer line segment. From the received signal an acoustic profile is obtained. The acoustic profile represents the sound energy a pipe transmits in a given state of operation. Commonly encountered sanitary sewer defects, such as roots, grease and breakages naturally absorb or reflect acoustic energy; this changes the pipeline’s acoustic properties and produces a measurable impact on the acoustic profile. The algorithm within the programming exploits these variations to provide a real time evaluation of the pipeline segment’s blockage condition.
WHAT DOES SL RAT SEE?
Here are some examples of how the SL RAT interprets defects in your pipes