Patent ID: 8651447

Claim:
A method of adaptively tuning a controller of an active vibration damper system, comprising: disabling all control channels except one active channel in the vibration damper system for an optical structure, the vibration damper system including a plurality of vibration damper assemblies which each have a respective vibration sensor and actuator and the vibration damper system further including a controller coupled to the sensor and the actuator of each vibration damper assembly by a plurality of respective control channels; increasing a gain factor of the active control channel until instability in the vibration damper system is detected; reducing the gain factor by a small increment to re-achieve stability; storing the gain factor that achieved stability; repeating the above steps individually for any remaining control channels; activating all control channels and increasing a gain factor to each control channel in an amount proportional to the respective stored gain factor for each respective control channel until instability is again detected; and reducing the gain factor in small steps for each control channel until stability is achieved for the vibration damper system.