Coupled Two-Tank System
The coupled two-tank kit teaches level control in two tanks of different cross-section, optionally with different shapes. Students work on basic fluid-mechanics modelling, system identification, and control strategies.
This is one of the classic problems in control teaching. It appears in most of the major control labs at engineering universities, and it can be tackled by mechanical, mechatronics, electrical, or control students. The kit can run as a single-tube or two-tube system. Coupled and decoupled control are both possible.
Level can be controlled with on/off, PID, state feedback, or more advanced nonlinear controllers, depending on what you want to teach. We can also provide the physical model so students can work on modelling, linearisation, identification, stability analysis, and full system control.
Specifications
| Tank size | Cylindrical, 6 in diameter, 1 m height |
|---|---|
| Reservoir | 20 × 80 × 40 cm |
| Material | Plastic and steel |
| Tanks | 2 |
| Pumps | 8 |
| Valves | 3 |
| Control software | Scilab-based code |
| Sensors | Water level sensors |
Learning outcomes
- System modelling: physical modelling, linear vs nonlinear systems, fluid dynamics, linearisation, model validation, system identification.
- System control: stability analysis, coupled and decoupled systems, classical controllers (on/off, PID, state feedback), advanced controllers, fault diagnosis and fault-tolerant strategies.