公开(公告)号：US5276500A

公开(公告)日：1994-01-04

申请号：US823745

申请日：1992-01-22

Applicant: Bertrand Koehler

Inventor： Bertrand Koehler

IPC: G01J3/45 ,  G01J9/02 ,  B01B9/02

CPC classification number: G01J9/02

Abstract: A carriage is moved along a track by a motor connected in a first control loop to a carriage position sensor. The carriage carries a chassis which is coupled to it by a flexible linkage. The chassis carries an accelerometer connected by a second control loop independent of the first control loop to a linear actuator acting on the chassis and bearing on the carriage. The chassis carries a primary mirror fastened to it and a secondary mirror coupled to it by a piezo-electric actuator controlled via a third control loop by an optical path difference OPD error signal generated in the recombination station that includes the interferometer. The third control loop is desaturated by the first or second control loop, preferably by the second control loop. The preferably stellar interferometer may be on board a spacecraft.

Abstract translation: 滑架通过连接在第一控制回路中的马达沿轨道移动到滑架位置传感器。 托架承载通过柔性连杆与其连接的底盘。 底盘承载通过第二控制回路连接的加速度计，其独立于第一控制回路到作用在底盘上并且承载在滑架上的线性致动器。 底盘带有固定到其上的主镜和通过由包括干涉仪的复合站中产生的光路差OPD误差信号经由第三控制环控制的压电致动器耦合到其上的副镜。 第三控制回路由第一或第二控制回路减饱和，优选地通过第二控制回路。 优选恒星干涉仪可以在航天器上。

公开(公告)号：US5008606A

公开(公告)日：1991-04-16

申请号：US509821

申请日：1990-04-17

Applicant: Bertrand Koehler ,  Emmanuel Manil ,  Jacques Chapellier

Inventor： Bertrand Koehler ,  Emmanuel Manil ,  Jacques Chapellier

IPC: G01J3/453 ,  G05D19/02

CPC classification number: G05D19/02 ,  G01J3/4535

Abstract: A carriage moves on a track and carries, through a flexible linkage, a chassis to which is fixed a payload including an optical element. A linear actuator controls the linkage so as to correct imperfections in displacement of the payload. A piezo-electric accelerometer delivers a filtered signal to control the linear actuator so as to eliminate the effect on the payload of vibration of the carriage. There are two independent control loops, one for controlling the carriage and the other for controlling the chassis. The device is applicable to controlling the mobile part of an optical delay line or of a telescope in a stellar interferometer.

Abstract translation: 托架在轨道上移动并且通过柔性联动装置携带固定有包括光学元件的有效载荷的底盘。 线性致动器控制连杆机构，以校正有效载荷位移的缺陷。 压电加速度计提供滤波信号以控制线性致动器，以消除对滑架振动有效载荷的影响。 有两个独立的控制回路，一个用于控制滑架，另一个用于控制机箱。 该装置适用于控制恒星干涉仪中的光学延迟线或望远镜的移动部分。