High-Temperature Bench

Experimental Bench Control System: Main Functions and Design Scheme
1. Utilize a closed-loop control system to collect system operational data through sensors and other data acquisition systems. The data is then inputted into the computer via data acquisition cards, displayed there, and calculated according to control requirements. Subsequently, control signals are outputted, processed by the data acquisition card into signals recognizable by the actuating components, and finally, system control is achieved through the action of the actuating components.
2. Utilizing a centralized computer control system with PLC hardware and the Windows operating system as the software platform. During the signal acquisition process, we collect both digital and analog signals. Therefore, we first need to convert the analog signals into digital signals that the PLC can process. After processing by the PLC, some of the output signals are then converted back into analog signals to control the experimental bench. This requires both A/D and D/A conversions. Hence, an integrated data acquisition card with both functionalities is needed to achieve these conversions.