| 摘要 |
PROBLEM TO BE SOLVED: To prevent a faulty stop or overlooking conventionally caused in a loom. SOLUTION: This method for setting a threshold voltage for detecting the blowing breakage comprises determining a value of a difference between the maximum value and the minimum value of signals from a blowing breakage feeler in a first period defined so as to include at least a period before and after the detection period of the blowing breakage in a state of a weft yarn absent in a detection region, determining the average value of signals from the blowing breakage feeler in a second period determined independently of the detection period of the blowing breakage and the first period without including signals when the weft yarn is detected and setting the value obtained by adding the value of the difference to the determined average value as the threshold value for detecting the blowing breakage.
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