External Noisemaker for Pipe Condition Assessment
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Solution Overview
Problem
Infrastructure pipe systems, such as water, wastewater, and gas pipes, face challenges in detecting weakened sections due to varying decay rates, making it difficult to predict and prevent catastrophic failures, especially in inaccessible underground pipes.
Innovation Solution
A noisemaker system that generates sound waves by using a vibrating plate and an actuator to propagate acoustic signals through pipes, allowing for the measurement of sound velocity, which indicates pipe condition, and aiding in locating weakened sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional pipe inspection methods are used, then infrastructure pipe systems can be monitored, but weakened sections due to varying decay rates cannot be effectively detected
Solution Approach 1:
The patent applies mechanical vibration by using a noisemaker device that generates acoustic signals which propagate through the pipe system. The vibrations travel along the pipe and are detected by sensors, allowing for the identification of weakened sections where sound velocity changes occur due to corrosion or wall thinning.
Solution Approach 2:
The patent replaces traditional visual inspection methods with an acoustic-based detection system. Instead of manually examining pipes, the system uses sound wave propagation characteristics to indirectly assess pipe condition, substituting mechanical inspection with acoustic field measurement.
2Measurement precision
If acoustic signals are generated inside pipes, then pipe condition can be assessed, but the noisemaker must be accessible to the pipe interior
Solution Approach 1:
The patent uses the pipe wall itself as an intermediary medium. The noisemaker generates acoustic signals outside the pipe, which then propagate through the pipe wall and the fluid inside. This eliminates the need for internal pipe access while still allowing assessment of wall thickness and structural integrity through the transmitted acoustic signals.
Solution Approach 2:
The patent transitions from internal to external assessment by measuring acoustic signal characteristics from the outside of the pipe. Instead of placing sensors inside the pipe to measure wall thickness, the system detects sound velocity changes and acoustic properties from external measurements, adding a new dimensional approach to pipe inspection.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables effective assessment of pipe wall thickness and condition by measuring sound propagation velocity, facilitating early detection of potential failures and improving pipe system integrity.
Implementation Method 1
The actuator can be configured to engage the top surface of the vibrating plate and generate an acoustic signal
Implementation Method 2
The bottom surface of the vibrating plate can be in contact with an exterior surface of the node
Data Source
AI summary
A noisemaker system includes: a node of an infrastructure system; and a noisemaker including a vibrating plate, the vibrating plate including a top surface and a bottom surface, the bottom surface of the vibrating plate in contact with an exterior surface of the node, and an actuator configured to engage the top surface of the vibrating plate and generate an acoustic signal.