Electromechanical device for measuring the inclination of a support plane with high resolution, high accuracy and low sensitivity to outside disturbances

An electromechanical device for measuring an inclination of a support plane with high resolution, high accuracy and low sensitivity to outside disturbances, comprising a first electromechanical pendulum system, controlled in a closed loop to measure the static rotations of an inverted pendulum which is pivoted to a supporting structure which is associated with the support plane whose inclination is to be measured by measuring the mechanical torque required to keep said inverted pendulum in a neutral position, perpendicular to said support plane, by way of first motor means which are associated with said inverted pendulum and act thereon as a function of its angular deviation from said neutral position measured by first position sensor means associated with said inverted pendulum, and further comprising a second electromechanical pendulum system, mechanically independent from said first electromechanical pendulum system, which is controlled in a closed loop to measure dynamic rotations of a balanced pendulum which is pivoted to said supporting structure by way of second position sensor means which are associated with said balanced pendulum and interact with second motor means which are associated with said balanced pendulum.