The RT 030 device offers basic experiments on a pressure controlled system. An air-filled pressure vessel is used as the controlled system. The pressure in the pressure vessel represents the controlled variable, which is determined by a measuring element, in this case a pressure sensor. The output signal from the sensor is fed to the software controller. The output signal from the controller influences the manipulated variable, in this case the compressor speed. This changes the flow rate. A flow control valve acts as a pneumatic consumer. The software is used to switch a solenoid valve on and off in order to study the effect of disturbance variables. This activates a second flow control valve, which represents a second consumer. The control response is displayed in the form of a time dependency. There is a dial-gauge manometer located on the pressure vessel, allowing the pressure to be read at any time.
The powerful GUNT software for the entire device series – in the form of Hardware/Software Integration (HSI) – is a major component for the entire series. The experimental unit and the PC are connected via a USB interface (external PC required).
The impact that modifications to the system behaviour have can be studied quickly and easily with the help of the software. An integrated programmer allows you to set reference variables and time intervals to carry out reference variable progressions. Further aspects of control engineering are studied using software simulations for controlled systems up to the 2nd order.
The combination of the clear, real-world controlled system and simulations of other controlled systems in the RT 010 – RT 060 device series aids understanding. Preparations for the experiments, as well as software simulations can be carried out in Remote Learning environments. The experiments can be observed at any number of workstations on the local network.