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US 5,896,228 AGranted
Method and apparatus for controlling the driving of a body
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsMasao Inoue, Yasushi Horiuchi
Life of this patent
Estimating the term…
Abstract
Tilting motion of an auxiliary mirror and a dynamically compensating balancer is separated into a component in which they tiltably move with the same phase and a component in which they tiltably move with opposite phases. As these components are processed by using respective stabilizing filters, the auxiliary mirror and the dynamically compensating balancer are allowed to tiltably move with opposite phases.
Claims15
An apparatus for controlling the driving of a body, comprising:
- a first body that undergoes motion about a center of gravity thereof;
- a second body that undergoes motion about a center of gravity thereof;
- a support for supporting said first and second bodies, wherein said first and second bodies are positioned on opposite sides of said support so that said support is sandwiched between said first and second bodies, wherein the center of gravity of said first and second body lie in a same plane being perpendicular to the plane of said support;
- a first detecting device for detecting a first relative displacement between the support and the first body;
- a first actuator for adjusting the first displacement;
- a second detecting device for detecting a second relative displacement between said support and said second body;
- a second actuator for adjusting the second displacement;
- and
- a drive controlling device for separating, based on the first displacement and the second displacement, motion of said first and second bodies into a component in which said first and second bodies move with a same phase and a component in which said first and second bodies move with opposite phases, and for controlling said first and second actuators so that the same-phase component and the opposite-phase component satisfy a predetermined relationship, so as to allow said first and second bodies to move with opposite phases,
- wherein said drive controlling device includes a supporting mechanism which operates by supporting the weight of said first body and imparting a force oriented in a direction opposite to that of the phase component and equal to the weight of said first body.
7 more elements
An apparatus for controlling the driving of a body, comprising:
- an auxiliary mirror of a reflecting telescope that undergoes motion about a center of gravity thereof;
- a dynamically compensating balancer of the reflecting telescope that undergoes motion about a center of gravity thereof;
- a mounting base for supporting said auxiliary mirror and said dynamically compensating balancer;
- a first detecting device for detecting a first relative displacement between said mounting base and said auxiliary mirror;
- a first actuator for adjusting the first displacement;
- a second detecting device for detecting a second relative displacement between said mounting base and said dynamically compensating balancer;
- a second actuator for adjusting the second displacement;
- and
- a drive controlling device for separating, based on the first displacement and the second displacement, motion of said auxiliary mirror and said dynamically compensating balancer into a component in which said auxiliary mirror and said dynamically compensating balancer move with a same phase and a component in which said auxiliary mirror and said dynamically compensating balancer move with opposite phases, and for controlling the first and second actuators so that the same-phase component and the opposite-phase component satisfy a predetermined relationship, so as to allow said auxiliary mirror and said dynamically compensating balancer to move with opposite phases.
6 more elements
Dependencies are inferred from the claim text.