| 摘要 |
A device for monitoring the travel of a yarn, particularly weft yarn in the shuttle of a loom, which device is designed as an assembly or unit comprising a piezoelectric transducer element, a yarn feeler member fixedly bonded with the transducer elements and arranged as a unilaterally clamped flexural vibratory member, and an induction coil operatively connected with the piezoelectric transducer element, and wherein a yarn guide means is provided at or near the free end of the vibratory yarn feeler member such that the yarn when traveling acts upon said feeler member in a restricted area thereof. |
