Patent · US Active

Vibration isolator with zero stiffness whose angle degree of freedom is decoupled with spherical air bearing

US9429208B2 · kind B2 · utility

2Cited by

5References

6Claims

0Family size

Assignee

HARBIN INSTITUTE OF TECHNOLOGY · CN

Inventors

Junning Cui · Jingwei, CN
Jiubin Tan · Jingwei, CN
Lei Wang · Singapore, SG

Key dates

Filing date	Feb 19, 2014
Grant date	Aug 30, 2016
Priority date	—
Expiry date	Feb 19, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH02K41/0356
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A vibration isolator with zero stiffness whose angle degree of freedom is decoupled with a spherical air bearing has a main body, in which a sleeve and a lower mounting plate, a piston cylinder and the sleeve are both lubricated and supported with air bearing surfaces respectively, and the angle degree of freedom between a upper mounting plate and the lower mounting plate is decoupled with a spherical air bearing; a position close-loop control system comprising voice coil motors, displacement sensors, limit switches, a controller and a driver is introduced, and the relative position between the upper mounting plate and the lower mounting plate is precisely controlled.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.