Invention Grant
- Patent Title: Combined motion sensor for use in feedback control systems for vibration isolation
- Patent Title (中): 组合运动传感器,用于反馈控制系统的隔振
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Application No.: US12707860Application Date: 2010-02-18
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Publication No.: US08352086B2Publication Date: 2013-01-08
- Inventor: Peter Heiland
- Applicant: Peter Heiland
- Applicant Address: DE
- Assignee: Integrated Dynamics Engineering GmbH
- Current Assignee: Integrated Dynamics Engineering GmbH
- Current Assignee Address: DE
- Agency: Kaplan, Breyer, Schwarz & Ottesen, LLP
- Priority: DE102009009562 20090219
- Main IPC: G01M1/38
- IPC: G01M1/38 ; G05B13/00 ; G05B15/00 ; G05D23/00 ; G05B13/02 ; H03F1/26 ; H04B15/00

Abstract:
The present invention relates to a method for controlling a vibration isolation system, and an active vibration isolation system for vibration-isolated support of lithographic devices, wafer handling systems, and/or scanning microscopes. For this purpose the following are provided: a number of vibration transducers for supplying sensor signals which are representative of vibrations; a number of actuators for vibration compensation which may be controlled by supplying actuator control signals; a control device which is designed for processing the supplied sensor signals to form the actuator control signals, wherein the vibration transducers have at least one geophone sensor as a first acceleration sensor for detecting vibrations in a first frequency range, and at least one second acceleration sensor, which is different from the first acceleration sensor, for detecting vibrations in a second frequency range which extends the first frequency range.
Public/Granted literature
- US20100211225A1 Combined motion sensor for use in feedback control systems for vibration isolation Public/Granted day:2010-08-19
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