公开(公告)号：US4425511A

公开(公告)日：1984-01-10

申请号：US232654

申请日：1981-02-09

Applicant: Amnon Brosh

Inventor： Amnon Brosh

IPC: H03K17/97 ,  H03K3/00

CPC classification number: H03K17/97 ,  H03K2017/9706 ,  H03K2017/9713 ,  Y10T307/766

Abstract: A planar coil apparatus is disclosed for providing an output signal indicative of a movement between at least a first and a second position. A first stationary planar member has disposed on a surface, a first flat coil configuration which is emplaced thereon by a printed circuit or similar technique. Located adjacent to this coil on the board is a second coil of similar configuration. A drive signal such as that obtained from an AC or pulse source is applied to the input terminals of one of the coils which constitutes the drive coil. A second planar board is positioned relatively congruent and above the first board and has located thereon a closed coil configuration which constitutes a closed coil loop. As this movable board is brought into proximity with the stationary board, magnetic flux is coupled via the loop from the drive coil to the second coil which serves as the sense coil. By monitoring the output of the sense coil, an AC signal can be detected when the movable board is within a predetermined range of distances from the stationary board. The detection of the AC signal indicates a change of position or state. Various other arrangements employ a movable board configuration containing a plurality of coils in conjunction with a stationary board configuration containing predetermined drive and sense coils to represent various coding patterns.

Abstract translation: 公开了一种平面线圈装置，用于提供指示至少第一和第二位置之间的运动的输出信号。 第一固定平面构件设置在表面上，通过印刷电路或类似技术放置在其上的第一扁平线圈构造。 与板上该线圈相邻的是具有类似配置的第二线圈。 诸如从AC或脉冲源获得的驱动信号被施加到构成驱动线圈的一个线圈的输入端。 第二平面板位于相对一致且位于第一板上方并且在其上具有构成闭合线圈环的闭合线圈构造。 随着该可移动板与固定板接近，磁通量通过环路从驱动线圈耦合到用作感测线圈的第二线圈。 通过监测感测线圈的输出，当可移动板处于距离固定板的预定距离范围内时，可以检测到AC信号。 AC信号的检测表示位置或状态的变化。 各种其他布置采用包含多个线圈的可移动板配置，其结合包含预定驱动和感测线圈的固定板配置来表示各种编码图案。

公开(公告)号：US4658153A

公开(公告)日：1987-04-14

申请号：US864737

申请日：1986-05-12

Applicant: Amnon Brosh ,  David Fiori, Jr.

Inventor： Amnon Brosh ,  David Fiori, Jr.

IPC: G01B7/02 ,  G01B7/14 ,  H01H36/00

CPC classification number: G01B7/14 ,  G01B7/023 ,  Y10T307/766

Abstract: The position sensor constitutes a fixed planar board having disposed on the surface serpentine coil structures of relatively low resistance and inductance. The coils are driven in a resonance mode which provides a frequency output according to the position of a moving planar member. The second movable planar board has disposed on the surface thereof planar loop coil structures. The second board is moved in proximity to the first board to vary the resonance characteristics of the first coil according to the position of the second board with respect to the fixed board. In this manner the frequency output of the system is a function of the position of the boards with respect to one another. Other embodiments depict means for compensating the thermal drifts of the frequency with respect to temperature.

Abstract translation: 位置传感器构成了具有相对较低电阻和电感的表面蛇形线圈结构上的固定平面板。 线圈以谐振模式驱动，该谐振模式根据移动的平面构件的位置提供频率输出。 第二可动平面板在其平面环形线圈结构的表面上设置。 第二板移动到第一板附近，以根据第二板相对于固定板的位置改变第一线圈的谐振特性。 以这种方式，系统的频率输出是板相对于彼此的位置的函数。 其他实施例描绘了用于补偿频率相对于温度的热漂移的装置。

公开(公告)号：US4507638A

公开(公告)日：1985-03-26

申请号：US329284

申请日：1981-12-10

Applicant: Amnon Brosh

Inventor： Amnon Brosh

IPC: G01D5/20 ,  G01P13/02 ,  H01F21/10 ,  H01F21/02

CPC classification number: G01P13/02 ,  G01D5/204 ,  H01F21/10

Abstract: A series of rotary sensors are disclosed. Each sensor consists of a drive coil which is a planar coil configuration separated from a sensing coil which is parallel to the drive coil. Interposed between the drive and sensing coils is a rotatable plate fabricated from a material capable of blocking a magnetic field induced in a drive coil from reaching or activating the sensing coil. The rotatable plate is shaped to allow predetermined amounts of flux to couple from the drive coil to the sensing coil as the plate is rotated. The shape of the plate therefore determines the signal provided at the sensing coil to enable one to provide such signals indicative of the angular movement of the plate between wide limits as from zero to 360.degree.. Other configurations utilizing a plurality of drive and sense coils and special shaped plates provide sine and cosine outputs as well as enable one to determine the quadrant of operation.

Abstract translation: 公开了一系列旋转传感器。 每个传感器由与驱动线圈平行的传感线圈分离的平面线圈构造的驱动线圈组成。 驱动传感线圈和传感线圈之间的一个可旋转的板是由能够阻挡在驱动线圈中感应的磁场到达或激活传感线圈的材料制成的。 可旋转板被成形为当板旋转时允许预定量的通量从驱动线圈耦合到感测线圈。 因此，板的形状决定了在感测线圈处提供的信号，以使得能够提供这样的信号，其指示板在从0到360°之间的宽极限之间的角度运动。 使用多个驱动和感测线圈和特殊成形板的其它配置提供正弦和余弦输出以及使得能够确定操作象限。

公开(公告)号：US4253079A

公开(公告)日：1981-02-24

申请号：US28981

申请日：1979-04-11

Applicant: Amnon Brosh

Inventor： Amnon Brosh

IPC: G01D5/20 ,  H01F17/00 ,  H01F21/06

CPC classification number: H01F17/0013 ,  G01D5/2046 ,  H01F21/06

Abstract: There is disclosed a displacement transducer which comprises a plurality of planar circuit boards, each having a coaxial central aperture. Each of said boards having disposed thereon at least one spiral conductive structure which manifests a predetermined coil. The structure is oriented about the aperture and has a first and second terminal. The boards are positioned in a stacked array with each of said boards separated one from the other and with said central apertures aligned to form a central coaxial cavity. Leads are coupled to the first and second terminals of said boards for connecting certain ones in a primary winding configuration and others in at least two secondary configurations. A magnetic core adapted for insertion into said cavity varies the coupling between the primary and secondary windings according to the depth of insertion of said core within said cavity.

Abstract translation: 公开了一种位移传感器，其包括多个平面电路板，每个具有同轴中心孔。 每个所述板在其上设置有至少一个螺旋导电结构，其表现出预定的线圈。 该结构围绕孔径定向并且具有第一和第二端子。 板被定位在堆叠的阵列中，每个所述板彼此分离，并且所述中心孔对准以形成中心同轴腔。 引线耦合到所述板的第一和第二端子，用于连接初级绕组配置中的某些端子，而在至少两个次级配置中连接其它端子。 适于插入所述腔的磁芯根据所述芯在所述空腔内的插入深度来改变初级和次级绕组之间的耦合。