Acoustic Emission Monitoring for Yarn Break Detection
topic
Acoustic emission sensors on ring spinning frames and weaving looms detect the characteristic high-frequency stress wave signatures of yarn breakage events at frequencies of 100 kilohertz to 1 megahertz, enabling immediate break detection for rapid stop motion activation and break location identification that reduces yarn waste per break by minimising the interval between break occurrence and machine stop compared to conventional mechanical drop pin stop motions.
Role
Provides faster yarn break detection and location identification through acoustic sensing that responds to the elastic wave of yarn fracture faster than mechanical sensors can detect the resulting tension loss, enabling reduction in yarn waste per break and faster break repair location that improves spinning efficiency, particularly beneficial in multi-spindle spinning frames where break location among hundreds of spindles can be identified immediately from acoustic sensor position.
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