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Title: Method and system for ultra-precision positioning

Abstract

An apparatus and method is disclosed for ultra-precision positioning. A slide base provides a foundational support. A slide plate moves with respect to the slide base along a first geometric axis. Either a ball-screw or a piezoelectric actuator working separate or in conjunction displaces the slide plate with respect to the slide base along the first geometric axis. A linking device directs a primary force vector into a center-line of the ball-screw. The linking device consists of a first link which directs a first portion of the primary force vector to an apex point, located along the center-line of the ball-screw, and a second link for directing a second portion of the primary force vector to the apex point. A set of rails, oriented substantially parallel to the center-line of the ball-screw, direct movement of the slide plate with respect to the slide base along the first geometric axis and are positioned such that the apex point falls within a geometric plane formed by the rails. The slide base, the slide plate, the ball-screw, and the linking device together form a slide assembly. Multiple slide assemblies can be distributed about a platform. In such a configuration, the platform may bemore » raised and lowered, or tipped and tilted by jointly or independently displacing the slide plates.« less

Inventors:
; ;
Publication Date:
Research Org.:
The Regents of the Univ. of California, Oakland, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175196
Patent Number(s):
6,839,970
Application Number:
10/150,560
Assignee:
The Regents of the University of California (Oakland, CA)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Montesanti, Richard C., Locke, Stanley F., and Thompson, Samuel L. Method and system for ultra-precision positioning. United States: N. p., 2005. Web.
Montesanti, Richard C., Locke, Stanley F., & Thompson, Samuel L. Method and system for ultra-precision positioning. United States.
Montesanti, Richard C., Locke, Stanley F., and Thompson, Samuel L. Tue . "Method and system for ultra-precision positioning". United States. https://www.osti.gov/servlets/purl/1175196.
@article{osti_1175196,
title = {Method and system for ultra-precision positioning},
author = {Montesanti, Richard C. and Locke, Stanley F. and Thompson, Samuel L.},
abstractNote = {An apparatus and method is disclosed for ultra-precision positioning. A slide base provides a foundational support. A slide plate moves with respect to the slide base along a first geometric axis. Either a ball-screw or a piezoelectric actuator working separate or in conjunction displaces the slide plate with respect to the slide base along the first geometric axis. A linking device directs a primary force vector into a center-line of the ball-screw. The linking device consists of a first link which directs a first portion of the primary force vector to an apex point, located along the center-line of the ball-screw, and a second link for directing a second portion of the primary force vector to the apex point. A set of rails, oriented substantially parallel to the center-line of the ball-screw, direct movement of the slide plate with respect to the slide base along the first geometric axis and are positioned such that the apex point falls within a geometric plane formed by the rails. The slide base, the slide plate, the ball-screw, and the linking device together form a slide assembly. Multiple slide assemblies can be distributed about a platform. In such a configuration, the platform may be raised and lowered, or tipped and tilted by jointly or independently displacing the slide plates.},
doi = {},
url = {https://www.osti.gov/biblio/1175196}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {1}
}

Patent:

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