#control engineering

• Astatic — Being in a state of neutral equilibrium, lacking a fixed position of stability, or unaffected by external directive forces such as terrestrial magnetism. In electronics and automatics, it describes a system or regulator that exhibits no steady-state error relative to the reference value, continuing to modify its parameters until the error is completely eliminated.
• Self-balanced — Being in a state of stable equilibrium due to its own internal mechanisms or sensors; a device or vehicle capable of autonomously maintaining its correct orientation or structural stability.