公开(公告)号：WO1991006869A1

公开(公告)日：1991-05-16

申请号：PCT/US1990006100

申请日：1990-10-25

Applicant: APPLIED TECHNOLOGY ASSOCIATES, INC.

Inventor： APPLIED TECHNOLOGY ASSOCIATES, INC. ,  LAUGHLIN, Darren

IPC: G01P15/08

CPC classification number: G01P3/44 ,  G01P7/00

Abstract: An electronic motion sensor is described, wherein in a cavity (20) formed in a case (11) of high flux density material supports a permanent magnet (28) at the bottom. The permanent magnet (28) has a north/south pole orientation in line with the cavity axis. A circular channel (20) is located above, having an axis coincident with the cavity axis and which is filled with mercury. A center contact post (21) is located long the cavity axis in contact with the mercury, extending upwards through the top of the channel. An amplifier circuit (29) supported on a header (27) of high flux density material is placed on top of the channel. The amplifier (27) amplifies the potential difference between the center contact post (21) and the case (11). The header (27) effectively seals the cavity of the case.

公开(公告)号：WO1993004521A1

公开(公告)日：1993-03-04

申请号：PCT/US1992006440

申请日：1992-08-04

Applicant: APPLIED TECHNOLOGY ASSOCIATES, INC.

Inventor： APPLIED TECHNOLOGY ASSOCIATES, INC. ,  LAUGHLIN, Darren

IPC: H02K05/24

CPC classification number: G03F7/709 ,  F16F7/1011 ,  H02K33/18

Abstract: An inertial linear actuator (12) for stabilizing a platform (11) against vibration is disclosed, including a movable coil (2) having windings (29) which may be energized, supported on an actuator guide (21) for movement. The actuator guide (21) is fixed to the platform (11) and a current is supplied to the movable coil (20) to generate a force for damping sensed vibrations on the platform surface. A multiplicity of permanent magnets (23) are disposed parallel to the actuator guide (21), and a current in the movable coil (20) results in force being introduced between the movable coil (20) and the stationary actuator guides (21). A control system is implemented on the platform (11) for providing a feedback signal from an accelerometer (14) coupled to the platform (11) to drive electronics. The drive electronics will produce a current having the magnitude and direction for creating the actuator force for damping the sensed disturbance.

公开(公告)号：WO2008076818A1

公开(公告)日：2008-06-26

申请号：PCT/US2007/087416

申请日：2007-12-13

Applicant: APPLIED TECHNOLOGY ASSOCIATES ,  LAUGHLIN, Darren, R.

Inventor： LAUGHLIN, Darren, R.

IPC: G06F19/00

CPC classification number: H02K41/031 ,  H02K3/26

Abstract: A printed circuit board (PCB) coil linear actuator is disclosed. The actuator includes a coil assembly and a magnet assembly. The coil assembly includes a plurality of PCB coils electrically connected in series. The PCB coils arranged in a row and adjacent PCB coils are separated by a gap. Each PCB coil includes a low aspect ratio, multi-layer coil member disposed on a board member. The actuator assembly includes a plurality of magnet units arranged in a row, wherein adjacent magnet units are separated by a gap. When the actuator is assembled, the PCB coils arranged in alternating sequence with the magnet units. The PCB coil linear actuator is intended to replace traditional slotted bobbin voice coil actuators (VCAs) and is particularly useful in fast steering mirror (FSM) applications. The PCB coil linear actuator provides many advantages over a VCA of an equivalent motor constant, including improved performance, lower weight and a lower profile.

Abstract translation: 公开了印刷电路板（PCB）线圈线性致动器。 致动器包括线圈组件和磁体组件。 线圈组件包括串联电连接的多个PCB线圈。 排列成一行并且相邻的PCB线圈的PCB线圈被间隔开。 每个PCB线圈包括设置在板构件上的低纵横比的多层线圈构件。 致动器组件包括排列成一排的多个磁体单元，其中相邻的磁体单元被间隙隔开。 当致动器组装时，PCB线圈与磁体单元交替排列。 PCB线圈线性致动器旨在取代传统的开槽线圈音圈致动器（VCAs），并且在快速导向镜（FSM）应用中特别有用。 PCB线圈线性致动器比等效电机常数的VCA提供了许多优点，包括改进的性能，较低的重量和较低的轮廓。

公开(公告)号：WO1992009897A1

公开(公告)日：1992-06-11

申请号：PCT/US1991008676

申请日：1991-11-22

Applicant: APPLIED TECHNOLOGY ASSOCIATES, INC.

Inventor： APPLIED TECHNOLOGY ASSOCIATES, INC. ,  LAUGHLIN, Darren, R.

IPC: G01P09/00

CPC classification number: G01P9/00 ,  G01P3/46

Abstract: A magnetohydrodynamic angular rate sensor is described. A housing (30) supports first and second fluid proof masses in respective coaxial annular channels (11, 17), permitting relative motion between the proof masses and the housing. First and second magnets (12, 18) associated with each annular channel (11, 17) result in an electric potential being generated across each channel proportional to the relative circumferential velocity between the proof masses and the housing. The annular channels are connected together to form a continuous pumped fluid circuit which introduces a radial flow velocity in each channel. At low rotational frequencies, a circumferential velocity component is induced in the proof masses due to Coriolis acceleration which results in a measurable electrical voltage across the annual channels. The low frequency response of the sensor is therefor extended to lower frequencies.