Control strategy and implementation for polymerase chain reaction device

This paper describes the design of temperature control in the process of thermal cycling in the polymerase chain reaction system. A program-based approach for the implementation of the control system is proposed. In order to satisfy the optimal operation and to meet device specifications, the design of control strategy is divided into three channels with control of unit process. In the control process, each channel performs its control actions and implements the sense data, which represents results of the implementation through reading sensors of data sampling module. The output of the channels was controlled by PID controller according to the control strategy. The experimental results demonstrate that the proposed method is more efficient.