Vibration isolating apparatus and vibration isolating table

Details Vibration isolating apparatus and vibration isolating table Vibration isolating apparatus and vibration isolating table

1995-09-05

1997-12-02

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Reciprocating

310 51, 310 905, 248550, F16F 1503

Patent

active

056939906

ABSTRACT:
A vibration isolating apparatus and a vibration isolating table for reliably controlling vibration of an object of vibration isolation. A coil-mounting main body is mounted on the vibration isolating table and a yoke-mounting main body is mounted on a floor. A coil of the coil-mounting main body is disposed in a gap of a yoke where magnetic flux passes through, in a state in which the coil does not contact the yoke. An acceleration sensor for detecting a vibration is mounted on the vibration isolating table and is connected to a controlling device. The controlling device receives an acceleration detecting signal from the acceleration sensor and controls an electric current applied to the coil such that vibration acting on the vibration isolating table becomes zero. Since the coil and the yoke are disposed in a non-contact state, even though vibration shifted in any direction other than a direction in which the coil moves is generated on the floor, the vibration is not transmitted to the vibration isolating table.

REFERENCES:
patent: 3529188 (1970-09-01), Gearing
patent: 4161666 (1979-07-01), Bacsanyi et al.
patent: 4976415 (1990-12-01), Murai et al.
patent: 5427362 (1995-06-01), Schilling et al.
patent: 5449985 (1995-09-01), Kanemitsu et al.
Brul & Kj.oe butted.r, "PM Mini-Shaker Type 4810 Instruction Manual", Jan. 1979, pp.1-7.

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