公开(公告)号：WO2012142221A3

公开(公告)日：2013-03-21

申请号：PCT/US2012033218

申请日：2012-04-12

Applicant: QED TECHNOLOGIES INT INC ,  KORDONSKI WILLIAM ,  BEADLE KEITH ,  GORODKIN SERGEI ,  SEKERES ARPAD

Inventor： KORDONSKI WILLIAM ,  BEADLE KEITH ,  GORODKIN SERGEI ,  SEKERES ARPAD

IPC: B24B37/00 ,  B24B49/00

CPC classification number: B24B57/02 ,  B24B49/10 ,  G01N27/74

Abstract: A system for sensing and controlling concentration of magnetic particles in magnetorheological fluid comprising a wire coil and an AC voltage generator that, when energized, creates a magnetic flux field including a fringing field. When the fringing field extends through the magnetorheological fluid, the impedance in the circuit is proportional to the concentration of magnetic particles. A reference wire coil identical to the sensing wire coil is connected therewith. A demodulator is connected to each of the coils sends an impedance difference signal to a feedback controller connected to controllable dispensing apparatus for adding a calculated amount of replenishing fluid to the magnetorheological fluid. The system may be incorporated into an integrated fluid management module having apparatus for receiving and replenishing spent magnetorheological fluid and a sensor system in accordance with the present invention for use in a magnetorheological finishing system having a carrier wheel.

Abstract translation: 一种用于感测和控制磁流变流体中的磁性颗粒浓度的系统，包括线圈和AC电压发生器，当被通电时，产生包括边缘场的磁通场。 当边缘场延伸穿过磁流变流体时，电路中的阻抗与磁性颗粒的浓度成比例。 与传感线圈相同的参考线圈线圈与其连接。 连接到每个线圈的解调器将阻抗差信号发送到连接到可控分配装置的反馈控制器，用于将计算量的补充流体添加到磁流变流体。 该系统可以并入具有用于接收和补充用过的磁流变流体的装置的集成流体管理模块和根据本发明的用于具有承载轮的磁流变整理系统中的传感器系统。

公开(公告)号：WO2010101925A3

公开(公告)日：2011-01-20

申请号：PCT/US2010025931

申请日：2010-03-02

Applicant: QED TECHNOLOGIES INT INC ,  KORDONSKI WILLIAM

Inventor： KORDONSKI WILLIAM

IPC: B24B57/02 ,  B24B31/00 ,  B24B37/00

CPC classification number: B24B1/005 ,  B24B31/102 ,  B24B31/112

Abstract: A system for magnetorheological finishing of a substrate. A spherical wheel meant for carrying a magnetorheological finishing fluid houses a variable-field permanent magnet system having north and south iron pole pieces separated by primary and secondary gaps with a cylindrical cavity bored through the center. A cylindrical permanent magnet magnetized normal to the cylinder axis is rotatably disposed in the cavity. An actuator allows rotation of the permanent magnet to any angle, which rotation changes the distribution of flux in the magnetic circuit through the pole pieces. Thus, one can control field intensity in the gaps by positioning the permanent magnet at whatever angle provides the required field strength. Because the field also passes above the pole pieces, defining a fringing field outside the wheel surface, the variable field extends through a layer of MR fluid on the wheel, thus varying the stiffness of the MR fluid as may be desired for finishing control.

Abstract translation: 一种基板磁流变整理系统。 用于承载磁流变精整流体的球面球体容纳有可变场永磁体系统，其具有由主中间和第二间隙分开的北和南铁极片以及通过中心钻孔的圆柱形腔。 磁体垂直于气缸轴线的圆柱形永磁体可旋转地设置在空腔中。 致动器允许永磁体旋转任何角度，该旋转改变磁路中磁通量通过极片的分布。 因此，可以通过将永磁体定位在提供所需场强的任何角度来控制间隙中的场强度。 由于磁场也通过极片上方，在车轮表面外部限定了一个边缘场，所以可变场延伸穿过车轮上的一层MR流体，从而改变MR流体的刚度，这可能是为了完成控制所需要的。

公开(公告)号：WO2012088002A3

公开(公告)日：2012-11-08

申请号：PCT/US2011065965

申请日：2011-12-20

Applicant: QED TECHNOLOGIES INT INC ,  KORDONSKI WILLIAM ,  GORODKIN SERGEI ,  SEKERES ARPAD

Inventor： KORDONSKI WILLIAM ,  GORODKIN SERGEI ,  SEKERES ARPAD

IPC: B24B37/00 ,  B24B37/005

CPC classification number: B24B31/112 ,  B24B1/005

Abstract: A system for magnetorheological finishing of a substrate. An integrated fluid management module (IFMM) provides dynamic control of the rheological fluid properties of the MR fluid on a conventional MR finishing apparatus, and dispensing of the fluid to the wheel. A magnetically shielded chamber charged with MR fluid is in contact with the carrier wheel. A transverse line removes the spent MR fluid from the wheel as the ribbon leaves the work zone. Replenishment fluid is added to the chamber via a dripper, and preferably an electric mixer agitates MR fluid in the chamber. A grooved magnetically-shielded insert at the exit of the chamber forms a polishing ribbon on the carrier wheel as the wheel is turned. A sensor sensitive to concentration of magnetic particles provides a signal for control of MR fluid properties, particularly, water content in the MR fluid. Means is provided for cooling fluid within the chamber.

Abstract translation: 一种基板磁流变整理系统。 集成流体管理模块（IFMM）提供对常规MR整理装置上MR流体的流变流体特性的动态控制，以及将流体分配到车轮。 装有MR流体的磁屏蔽室与承载轮接触。 当条带离开工作区时，横向线从轮上移除废的MR流体。 补充液通过滴液器加入到腔室中，优选地，电动搅拌器搅拌腔室中的MR流体。 在室的出口处的槽形磁屏蔽插入件在车轮转动时在载体轮上形成抛光带。 对磁性颗粒浓度敏感的传感器提供了用于控制MR流体性质，特别是MR流体中的含水量的信号。 提供了用于在室内冷却流体的装置。