Sonicweld: non-destructive analysis for TPO weld quality assessment
SonicWeld utilizes Impulse Excitation Technique with advanced signal processing and machine learning to detect TPO membrane weld defects, providing immediate, quantifiable, and non-destructive inspection results.
Overview
SonicWeld represents a breakthrough in non-destructive testing for thermoplastic polyolefin (TPO) weld quality assessment. Utilizing the Impulse Excitation Technique, SonicWeld delivers precise taps to TPO welds and analyzes the resulting acoustic signatures with advanced signal processing and machine learning algorithms. This method identifies subsurface defects, providing immediate and quantifiable results that ensure roofing integrity and reduce costly repairs and warranty claims.
Technical specifications
- Impulse Excitation Technique: Employs calibrated taps to the weld using a precision impulse generator.
- Non-contact Acoustic Sensors: Capture vibrations and analyze unique acoustic signatures for defect detection.
- Machine Learning Algorithms: Classify weld quality based on acoustic resonance patterns, optimized for field conditions.
- Handheld Unit Design: Provides immediate pass/fail results and maps inspection locations automatically.
- Field Advantage: Operates on dry surfaces without the need for couplants, unlike ultrasound methods.
- Real-time Results: Enabling defect detection during installation for timely corrections.
Technology readiness level
SonicWeld is currently at Technology Readiness Level 4, indicating that it has been validated in a laboratory environment. The next steps include algorithm development, field testing, and refinement based on real-world data, leading to comprehensive specifications and analysis methods for broader application.
About University of Wisconsin, Milwaukee
University of Wisconsin–Milwaukee is a comprehensive public research university in the state’s largest metro, pairing broad academic breadth with an applied, urban mission. Industry engages through an innovation campus and research park that co-locate university labs with startups and corporate teams, plus shared-use core facilities. Its location puts partners near a major regional medical center and within a leading freshwater and advanced manufacturing cluster, enabling pilots, internships, and joint development. Research is supported by competitive federal funding from agencies such as NSF, NIH, and DOE. A dedicated technology transfer office and affiliated foundation manage IP, licensing, corporate agreements, and seed funding to accelerate commercialization.
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