Systems and methods for imbalance measurement of rotating machinery

An imaging system comprising:

• a stationary housing:
• a rotating gantry rotatably mounted to the stationary housing;
• a computed tomography (CT) acquisition unit mounted to the rotating gantry, the CT acquisition unit comprising an X-ray source and a CT detector configured to collect CT imaging data of an object to be imaged, the X-ray source and CT detector mounted to the rotating gantry;
• and
• a first inclinometer mounted to the stationary housing, the first inclinometer configured to provide inclination information at a first frequency and vibration information at a second frequency, the second frequency higher than the first frequency;
• and
• at least one processor operably coupled to the first inclinometer, the at least one processor coupled to the first inclinometer and configured to acquire the vibration information from the first inclinometer, the at least one processor configured to disregard the inclination information at the first frequency and to determine a state of balance of the rotating gantry using only the vibration information but not the inclination information.

A method comprising:

• rotating a rotating member coupled to a stationary housing;
• transmitting at least one output signal from at least one inclinometer mounted to the stationary housing, the output signal comprising inclination information and vibration information, the inclination information at a lower frequency than the vibration information;
• acquiring, with at least one processor, the vibration information, while disregarding the inclination information at the lower frequency than the vibration information;
• and
• determining, with the at least one processor, a state of balance of the rotating member using only the vibration information but not the inclination information.