Details of a steel wire for tire circumference measurement of a circle system this paper introduces the PLC-based wire circle week length gauge mechanical structure measuring principle and ECU hardware and software design .

详细介绍了一种用于轮胎 钢丝圈内 周长测量的一套系统，本文主要介绍了基于PLC的钢丝圈内周测长仪的机械结构、测量原理及电控单元的硬件和软件设计。

When the steel wire rope is winded by the drive wheel some winded along the circumference others winded along the straight line .

钢丝绳绕经驱动轮时部分成 圆周缠绕，一部分是直线缠绕。

And the structure features no coating rubber on rectangular wire multi-strand and layer of wire arranged compactly and devided equally at circumference with bundles of thin steel tapes .

结构特点为矩形钢丝表面不包胶， 钢丝多股、多层紧密排列， 沿 圆周等分（等分处用薄钢带箍紧）。

The results showed that the maximum heat flux density of the coarse flux cored wire distributed on the circumference of the horizontal cross section of wire . And Bi-directional heat flux decreases gradually along the radial when leaving the circle .

计算结果表明，粗药芯焊丝的最大热流密度分布在 焊丝横截面所形成的 圆周上，离开该圆周双向热流密度沿径向逐渐降低。