To innovate weft control system of projectile loom with low cost,signal transducer was designed,designed weft sensor was instead of weft detector,circuit diagram was got.

• 为了实现在片梭织机上进行纬向控制系统的低成本改造,自行设计了信号转换板,采用常规电子元器件自制的纬纱传感器代替纬纱检测器,并给出了线路连接图。