高速并條機(jī)具有很高的出條速度，如何改善自調(diào)勻整性能，保證紡紗的質(zhì)量是研究中
的一大難點(diǎn)。為此，提出了一種基于定長(zhǎng)控制新技術(shù)的自調(diào)勻整控制系統(tǒng)：在硬件上采用微機(jī)配合先進(jìn)的PCI 控制卡保證高速度；軟件上利用定長(zhǎng)控制中斷保證控制精度。這種新型控制系統(tǒng)在高速并條機(jī)FA398 的研發(fā)過程中得到了成功應(yīng)用，證明該新型控制系統(tǒng)是切實(shí)可行的。
關(guān)鍵詞：定長(zhǎng)控制, 自調(diào)勻整，高速并條機(jī)
Abstract: How to improve auto-leveling property and the yarn quality under high speed is a
difficulty for developing high-speed drawing frame. We put forward a new control system based on the certain-length control technique: for hardware, computer and advanced PCI control board are adopted to ensure high speed; for software, certain-length control technique is used to get high control precision. This control system is used well in developing high-speed drawing frame FA398, and it is proved that this new control system is practical.
Keywords: certain-length control, auto-leveling, high-speed drawing frame