• 作者： Li, K.T.; Lee, J.D.
• 中文摘要： 本文描述利用微電腦來控制連續攪拌反應器中多階段耦合反應之生成物濃度。所用的控制機構為攪拌器的速度。我們也發展出一套快速的光纖測量器以量度濃度。本文包括開環路和閉環路的實驗結果。開環路的實驗結果顯示測量儀器和信號作用機構都無顯著的靜時。閉環路的實驗結果顯示攪拌器速度可以有效的追蹤設定值和消除攪動。由於攪拌速度能對反應器的出口濃度有立即的影響以及光纖測量儀能敏感的測知產品濃度的改變,因此整個控制環路的反應非常快速。
• 英文摘要： The report describes microcomputer-based control of product composition for a multiple-step, diazo-coupling reaction in a continuous stirred-tank reactor (CSTR). Agitator speed is the manipulated variable, and we have developed a fiber-optics sensor for rapid on-line concentration measurement of product solution. The report includes experimental data for open-loop and closed-loop responses. The open-loop process reaction curve shows that neither the sensor nor the actuator has significant dead time. A slab-diffusion micromixing model with an exponential residence-time distribution effectively describes the process. The closed-loop response of a proportional controller demonstrates the effectiveness of agitator speed in following set-point changes and in eliminating disturbances . The control loop responds quickly because of the instantaneous effects of the agitator speed on the process outputs and the sensitivity of the fiber-optics sensor to the product concentration change .
• 中文關鍵字： 攪拌; 串-並聯反應; 光纖測量器; 控制
• 英文關鍵字： Mixing; Series-Parallel Reaction; Fiber-Optics Sensor; Control