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1. 发明申请

WO2005017634A3 METHOD AND CIRCUIT ARRANGEMENT FOR THE PRECISE, DYNAMIC DIGITAL CONTROL OF ESPECIALLY PIEZOELECTRIC ACTUATORS FOR MICROPOSITIONING SYSTEMS 审中-公开
标题翻译：方法与电路精密，动态数字化控制的微定位特定压电驱动器
公开(公告)号：WO2005017634A3
公开(公告)日：2005-06-23
申请号：PCT/EP2004008695
申请日：2004-08-03
申请人： PHYSIK INSTR PI GMBH & CO KG , GEYER BERNHARD , BESCH BERTHOLD , JORDAN SCOTT
发明人： GEYER BERNHARD , BESCH BERTHOLD , JORDAN SCOTT
IPC分类号： G05B19/35 , H01L41/04
CPC分类号： G05B19/351 , G05B2219/41344 , H01L41/042 , H02N2/0075
摘要： The invention relates to a method and to a circuit arrangement for the precise, dynamic digital control of especially piezoelectric actuators for micropositioning systems, comprising a regulator, whereby, in order to minimize position order deviations, the future system behavior is estimated and current correction signals for the purpose of feedforward correction are obtained. The aim of the invention is to reduce latency times in the feedforward loop of the scanner system. For this purpose, the signal of the command variable is passed over a switched bypass to a high-resolution digital-to-analog converter, said converter being operated at the scan rate of the scanner system. The feedforward loop leads to a fast digital-to-analog converter which is controlled in a scanner system-independent manner. The output signals of the converters representing the control voltages are added to the device to be controlled, especially they are forwarded to a piezoelectric actuator which together with the position sensor forms the controlled system.
摘要翻译：本发明涉及的方法和特别是压电致动器用于与调节器，其中，以最小化位置顺序的偏差和在一个前馈修正的术语获得电流修正信号来估计未来的系统行为微定位的精确动态数字控制的电路布置。根据本发明，传送到的延迟时间在参考变量的采样的信号的前馈回路经由切换旁路还原成一个数字 - 模拟转换器的最高分辨率，在该转换器设置在扫描系统的采样率运行。此外，前馈回路导致被驱动abtastsystemunabhängig快速数字 - 模拟转换器。表示所述转换器的输出信号的控制电压被添加到要被控制的设备，特别是压电致动器转发，其与位置传感器，所述受控系统形成。

2. 发明专利

DE502004008595D1 未知
公开(公告)号：DE502004008595D1
公开(公告)日：2009-01-15
申请号：DE502004008595
申请日：2004-08-03
申请人： PHYSIK INSTR PI GMBH & CO KG
发明人： GEYER BERNHARD , BESCH BERTHOLD , JORDAN SCOTT
IPC分类号： G05B19/35 , H01L41/04
摘要： To reduce latency times in the feed-forward branch of a sampling system, the signal for a control variable reaches a highest-resolution D/A converter via a switchable bypass. The D/A converter is operated at the sampling rate of the sampling system. The feed-forward path leads to a rapid D/A converter which is driven independent of the sampling system. An independent claim is included for a circuit for accurate, dynamic digital control of piezo-actuators.

3. 发明专利

AT416404T 未知
公开(公告)号：AT416404T
公开(公告)日：2008-12-15
申请号：AT04763753
申请日：2004-08-03
申请人： PHYSIK INSTR PI GMBH & CO KG
发明人： GEYER BERNHARD , BESCH BERTHOLD , JORDAN SCOTT
IPC分类号： G05B19/35 , H01L41/04
摘要： To reduce latency times in the feed-forward branch of a sampling system, the signal for a control variable reaches a highest-resolution D/A converter via a switchable bypass. The D/A converter is operated at the sampling rate of the sampling system. The feed-forward path leads to a rapid D/A converter which is driven independent of the sampling system. An independent claim is included for a circuit for accurate, dynamic digital control of piezo-actuators.

4. 发明专利

DE10336820A1 Drive method for piezoelectric actuators for micro-positioning systems, by using switchable bypass to digital-analog converter of maximum resolution 未知
公开(公告)号：DE10336820A1
公开(公告)日：2005-01-20
申请号：DE10336820
申请日：2003-08-11
申请人： PHYSIK INSTR PI GMBH & CO KG
发明人： GEYER BERNHARD , BESCH BERTHOLD , JORDAN SCOTT
IPC分类号： G05B19/35 , H01L41/04 , H02N2/06
摘要： To reduce latency times in the feed-forward branch of a sampling system, the signal for a control variable reaches a highest-resolution D/A converter via a switchable bypass. The D/A converter is operated at the sampling rate of the sampling system. The feed-forward path leads to a rapid D/A converter which is driven independent of the sampling system. An independent claim is included for a circuit for accurate, dynamic digital control of piezo-actuators.

5. 发明专利

CA2469619A1 WATER FLUSHING UNIT FOR A PRESSURE BALANCED SHOWER VALVE 未知
公开(公告)号：CA2469619A1
公开(公告)日：2005-05-25
申请号：CA2469619
申请日：2004-06-03
申请人： JORDAN SCOTT
发明人： JORDAN SCOTT
IPC分类号： B08B9/02 , E03B7/08 , E03C1/02 , E03C1/04 , F16K21/00
摘要： A water flushing unit and a method of making such comprising a cover plate that is to be mountingly installed to replace the original equipment cover plate of a shower valve. The modified cover plate has a drain conduit which includes an on/off valve. The on/off valve is in turn connected to a flexible tube. Flushing water from the shower valve is to be confined and directed through the drain pipe and, with the on/off valve in an open position, is caused to flow through the drain tube.

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