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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Using Capacitance Sensor to Identify the Appearance Parameters of Slub Yarn
verfasst von : Hanming Lv, Chongqi Ma
Erschienen in: Advanced Research on Electronic Commerce, Web Application, and Communication
Verlag: Springer Berlin Heidelberg
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A heuristic approach was presented in this paper to identify the appearance parameters of slub yarn. The signal of slub yarn was firstly acquired with a capacitance sensor and a DAQ (Data AcQuisition) card. The slub yarn signal was then separated into some short parts based on a new local minimal amplitude based method. For each short part, an adaptive threshold was calculated and further adopted to identify the slub parts. Comparing with the global threshold, the local adaptive threshold reduces the negative affection of unevenness. Experimental results show that the presented approach works well.