| 摘要 |
A portable monitor unit for knitting machines and particularly suitable for circular knitting machines including a yarn speed sensor pulsing a numeral display counter via a gate, a needle detector controlling the gate via a settable counter, a frequency meter, and a switch for selectively engaging the signals of the yarn sensor, needle detector and frequency meter to display yarn length per needle stitch, yarn length per unit time, and rpm of the knitting machine.
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