Supports – With condition responsive control means
Reexamination Certificate
1998-09-18
2001-03-06
Ramirez, Ramon O. (Department: 3632)
Supports
With condition responsive control means
C244S164000, C248S636000, C248S638000, C267S136000
Reexamination Certificate
active
06196514
ABSTRACT:
BACKGROUND OF THE INVENTION
Prior systems exist that are intended for active isolation and vibration suppression. Those systems use a combination of passive pneumatics for isolation and magnetic actuators for vibration suppression. However, those systems are limited in three ways. First, they are intended only for dealing with low-level ambient background vibration, such as what is encountered in a laboratory or in a clean room. Second, they are incapable of tolerating near-zero-frequency acceleration, such as is encountered in an aircraft in flight or in a moving vehicle. Third, existing isolation systems using pneumatic springs, whether actively augmented or not, are limited to suspension frequencies no lower than about 2 Hz. That limits the amount of isolation possible, particularly in the important frequency range between 5 and 50 Hz. The present invention has no such limit and readily produces suspension frequencies in the range of 0.1 to 1.0 Hz. Those differences in application lead to major differences in operating principles and in construction of the system. Needs exist for a high level of isolation from large inputs. The system also needs to be able to provide that isolation in the presence of a constant or slowly varying acceleration. Specifically, the system needs to be able to perform in an aircraft in flight or a sea or land vehicle in motion.
SUMMARY OF THE INVENTION
The invention relates to vibration reduction in general, and vibration isolation and active stabilization in particular. The invention is intended for optical or electro-optical systems where components, such as large mirrors, must be held in accurate registration to each other, or for beam-generating devices that are under the influence of externally generated vibration.
This invention provides a vibration isolation system particularly for use with airborne optical systems. A unique passive-active vibration isolation system suspends sensitive airborne payloads such as optical benches. The system, called the Airborne Stabilization/Vibration Isolation System (AS/VIS), is useful for the special requirements of the Airborne Laser (ABL). Other uses are contemplated.
AS/VIS is the most capable isolation system possible, even if it exceeded actual requirements.
These and further and other claims and features of the invention are apparent in the disclosure, which includes the above and ongoing written specification, with the claims and the drawings.
REFERENCES:
patent: 3469809 (1969-09-01), Reznick et al.
patent: 3514054 (1970-05-01), Mard et al.
patent: 4101102 (1978-07-01), Lloyd
patent: 4315610 (1982-02-01), Malueg
patent: 4405101 (1983-09-01), Carlson et al.
patent: 4796873 (1989-01-01), Schubert
patent: 5000415 (1991-03-01), Sandercock
patent: 6000661 (1999-12-01), Price et al.
patent: 6022005 (2000-02-01), Gran et al.
Creighton Wray James
CSA Engineering, Inc.
Le Tan
Narasimhan Meera P.
Ramirez Ramon O.
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