In this paper, novel resin frontal flow monitoring electrically resistive sensors made of reinforced continuous carbon fibers and manufactured by composite additive manufacturing (AM) are examined. For such manufacture, two adjacent and parallel fiber yarns made with carbon-fiber embedded in the polymer matrix were deposited by using a 3D printer system. These flexible flow sensors were made of two nylon wall layers, had a fixed separating distance between conductive carbon filament and were printed on nylon peel-ply. Thickness of the nylon walls and filaments separating distance were optimised and tested with different vacuum-assisted resin infusion (VARI) experimental trials by measuring the voltage drop between their filaments edges in order to monitor properly the resin frontal flow. It is concluded that the sensing configuration presented here as a removable fiber/polymer unit could be used for obtaining high-quality composites by monitoring the resin frontal flow.

在本文中，研究了通过复合增材制造（AM）制造的，由增强连续碳纤维制成的新型树脂正面流量监测电阻传感器。对于这样的制造，通过使用3D打印机系统来沉积由嵌入聚合物基体中的碳纤维制成的两条相邻且平行的纤维纱。这些柔性流量传感器由两个尼龙壁层制成，在导电碳丝之间具有固定的分隔距离，并印刷在尼龙剥离层上。尼龙壁的厚度和细丝的分离距离已优化并通过不同的真空辅助树脂灌注（VARI）实验试验进行了测试，方法是测量它们的细丝边缘之间的电压降，以正确监控树脂的正面流量。