Position detecting apparatus using a magnetic sensor and a closed
magnetic circuit with non-uniform magnetic flux distribution
    1.
    发明授权
    Position detecting apparatus using a magnetic sensor and a closed magnetic circuit with non-uniform magnetic flux distribution 失效
    位置检测装置使用磁传感器和具有不均匀磁通分布的封闭磁路

    公开(公告)号:US4810965A

    公开(公告)日:1989-03-07

    申请号:US906027

    申请日:1986-09-11

    CPC分类号: G01D5/20

    摘要: A position detector having a magnetic sensor for measuring linear or angular displacement, or detecting a position of a body without contact thereto. The detector has a closed circuit including magnets and yokes. The magnetic leakage flux which emanates from the inside surfaces of the yokes is utilized to detect the position of the body. The magnetic sensor is transferred along the inside surfaces of the yokes by a transferring circuit, which senses the magnetic field intensity of the leakage flux distributed thereon. This enables the detector to have a longer measuring range than that of a prior art detectors. An output signal is stable due to the shielding effect of the yokes. The magnetic closed circuit has many magnetic and mechanical configurations. For example, for the magnet, a permanent magnet and an electromagnet can be used. Further, improvements are proposed for enhancing the linearity of the output signal voltage with respect to the transferring distance of the sensing element and for compensating the offset drift of an amplifier or changing the coercive force of permanent magnets.

    摘要翻译: 一种位置检测器,具有用于测量线性或角位移的磁传感器,或者检测身体的位置而不与其接触。 检测器具有包括磁体和轭的封闭电路。 利用从轭的内表面发出的漏磁通来检测身体的位置。 磁传感器通过传递电路沿着轭的内表面传递,传输电路感测分布在其上的漏磁通的磁场强度。 这使得检测器具有比现有技术的检测器更长的测量范围。 输出信号由于磁轭的屏蔽效应而稳定。 磁闭环具有许多磁力和机械结构。 例如,对于磁体,可以使用永磁体和电磁体。 此外,提出了相对于感测元件的传送距离来增强输出信号电压的线性度并且用于补偿放大器的偏移漂移或改变永磁体的矫顽力的改进。

    Process for the production of optical elements
    3.
    发明授权
    Process for the production of optical elements 失效
    光学元件生产工艺

    公开(公告)号:US4877717A

    公开(公告)日:1989-10-31

    申请号:US77337

    申请日:1987-07-24

    IPC分类号: B29D11/00

    摘要: A process for the production of optical elements which comprises forming on a substrate a light-sensitive film containing at least a photoreactive compound, and selectively exposing the film to radiation to cause migration of the unreacted compound from an unexposed area to an exposed area by the exposure. The present process is particularly useful in the low-cost mass-production of various micronized optical elements such as plastic microlenses and arrays thereof, optical waveguides, diffraction gratings, and holograms, for example. An optical device comprising the optical elements of the present invention is also disclosed.

    摘要翻译: 一种用于生产光学元件的方法,其包括在基底上形成含有至少一种光反应性化合物的感光膜,并且将该膜选择性地暴露于辐射以引起未反应的化合物从未曝光区域迁移到暴露区域 曝光。 本发明的方法在诸如塑料微透镜及其阵列,光波导,衍射光栅和全息图等各种微粉化光学元件的低成本批量生产中特别有用。 还公开了包括本发明的光学元件的光学装置。

    Magnetic bubble memory device gates
    4.
    发明授权
    Magnetic bubble memory device gates 失效
    磁性气泡存储器件门

    公开(公告)号:US4561069A

    公开(公告)日:1985-12-24

    申请号:US505978

    申请日:1983-06-20

    IPC分类号: G11C19/08

    CPC分类号: G11C19/0891

    摘要: A magnetic bubble memory device comprises minor loops for the storage of information and a major loop operably associated with the minor loops through gates, the minor loops being defined by an ion-implanted pattern and the gate portions of the major line being defined by patterns of magnetically soft material. This construction makes it possible to provide a high storage density and superior gate operating margins.

    摘要翻译: 磁性气泡存储装置包括用于存储信息的小环路和通过栅极可操作地与次环路相关联的主环路,次级环路由离子注入图案限定,主线路的栅极部分由 磁软材料。 这种结构使得可以提供高的存储密度和优良的门操作裕度。

    Magnetic bubble memory detection method and device
    5.
    发明授权
    Magnetic bubble memory detection method and device 失效
    磁性气泡存储器检测方法及装置

    公开(公告)号:US4445200A

    公开(公告)日:1984-04-24

    申请号:US303588

    申请日:1981-09-18

    IPC分类号: G11C19/08

    CPC分类号: G11C19/0866

    摘要: A current stretch detection method for a bubble device in which bubbles are written at least one bit apart. A stretch pulse is applied to a stretch conductor so that when a bubble is detected, it is maintained stretched, even though the bubble following it has moved one bit. Preferably the stretch pulse is of a convex-shape. A bubble device has a hairpin stretch conductor and a detecting element disposed centrally in the conductor. The terminal of the detecting element on the higher potential side is arranged so that it does not cross the stretch conductor. The contiguous propagation pattern is provided with a notch at a position in which the stretch conductor is located.

    摘要翻译: 气泡装置的当前拉伸检测方法,其中气泡被写入至少一个位。 拉伸脉冲施加到拉伸导体,使得当检测到气泡时,即使其跟随的气泡移动一位,也保持拉伸。 优选地,拉伸脉冲是凸形的。 气泡装置具有发夹拉伸导体和设置在导体中心的检测元件。 高电位侧的检测元件的端子被布置成不与伸展导体交叉。 连续传播图案在拉伸导体位于的位置处设有凹口。

    Magnetic bubble memory device and method for operating the same
    8.
    发明授权
    Magnetic bubble memory device and method for operating the same 失效
    磁性气泡存储装置及其操作方法

    公开(公告)号:US4434476A

    公开(公告)日:1984-02-28

    申请号:US408849

    申请日:1982-08-17

    IPC分类号: G11C19/08

    CPC分类号: G11C19/0858 G11C19/0883

    摘要: A magnetic bubble memory device includes: a magnetic layer with a first region having an easy axis of magnetization extending in a certain direction and a second region surrounding the first region and having an easy axis of magnetization substantially perpendicular to that of the first region, said first region defining a plurality of bubble propagation patterns; and a replicate gate with a stretch conductor pattern, to which an electric current is applied so as to stretch a bubble between said propagation patterns, and a cutting pattern formed in the second region between the propagation patterns and adapted to lower the bubble collapse field so as to cut the stretched domain. The replicate gate is operated by applying an operating current pulse to the stretch conductor pattern, said operating pulse including a stretch pulse for stretching the bubble and a cut pulse, following the stretch pulse, for cutting the stretched domain.

    摘要翻译: 磁性气泡存储装置包括:具有第一区域的磁性层,该第一区域具有在一定方向上延伸的易磁化轴和围绕第一区域的第二区域,并且具有与第一区域基本上垂直的易磁化磁化轴, 第一区域限定多个气泡传播模式; 以及具有拉伸导体图案的复制栅极,施加电流以在所述传播图案之间拉伸气泡,以及形成在传播图案之间的第二区域中的切割图案,并适于降低气泡塌陷场,从而 为了切割伸展的域。 通过对拉伸导体图案施加工作电流脉冲来操作复制栅极,所述操作脉冲包括用于拉伸气泡的拉伸脉冲和拉伸脉冲之后的切割脉冲,用于切割拉伸区域。

    Magnetic bubble memory device
    9.
    发明授权
    Magnetic bubble memory device 失效
    磁性气泡记忆装置

    公开(公告)号:US4415988A

    公开(公告)日:1983-11-15

    申请号:US283182

    申请日:1981-07-14

    IPC分类号: G11C19/08

    CPC分类号: G11C19/0883

    摘要: A magnetic bubble memory device comprises: a magnetic layer which has a first region having the easy axis of magnetization extending in a certain direction and a second region surrounding said first region and having the easy axis of magnetization substantially perpendicular to that of the first region, said first region defining at least one major loop pattern for propagation of information bubbles and a plurality of minor loop patterns for storage of information bubbles; and an electrical conductor pattern deposited on said magnetic layer in a region in which the major loop pattern and the minor loop patterns are opposed to each other, thereby constructing a transfer gate. The major loop pattern is provided, at the portions thereof substantially opposed to the ends of the minor loop patterns in the transfer gate, with gaps through which the bubbles are transferred between the major loop pattern and the minor loop patterns. The transfer gate is driven by means of a convex-shaped pulse of transfer current.

    摘要翻译: 磁性气泡存储装置包括:磁性层,其具有易磁化轴沿一定方向延伸的第一区域和围绕所述第一区域的第二区域,并且具有与第一区域基本垂直的易磁化磁化轴, 所述第一区域限定用于信息气泡的传播的至少一个主循环图案和用于存储信息气泡的多个次循环图案; 以及在主环形图案和次环形图案彼此相对的区域中沉积在所述磁性层上的电导体图案,从而构成传送门。 提供主要环形图案,其基本上与传输门中的次级环形图案的端部相对的部分具有间隙,气泡通过该间隙在主环形图案和次环形图案之间传递。 传输门由传输电流的凸形脉冲驱动。