Patent ID: 9519076
Filing Date: 2016-12-13
CPC Classification: G01P,G01V

Claim Text:
1. A method of rebalancing a plurality of accelerometers arranged in a gravity gradiometer instrument (GGI), each accelerometer of said plurality of accelerometers being decoupled from each other accelerometer, the method comprising the steps of: implementing at least one constrainment mode, wherein each of said at least one constrainment mode corresponds to a subset of accelerometers in said plurality of accelerometers; defining an actuation modes matrix, each column of said actuation modes matrix containing a vector listing of summation coefficients for accelerometers of a constrainment mode associated with the column of the actuation modes matrix; generating a vector listing of constrainment currents for each accelerometer associated with said at least one constrainment mode and applying said vector listing of constrainment currents to said actuation modes matrix to generate an actuation current for each at least one constrainment mode; applying said generated actuation current to each accelerometer associated with said at least one constrainment mode.