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91 条记录 (耗时 0.011 秒)

    Method of making a magnetic material part with spatial distribution of the permeability
    55.
    发明授权
    Method of making a magnetic material part with spatial distribution of the permeability 失效
    制造具有透气性的空间分布的磁性材料部件的方法

    公开(公告)号：US3855691A

    公开(公告)日：1974-12-24

    申请号：US33730873

    申请日：1973-03-02

    申请人： LIGNES TELEGRAPH TELEPHON

    发明人： DESCHAMPS A ,  FAYE G

    IPC分类号： C04B35/26 ,  H01F1/03 ,  H01F1/37 ,  H01P1/32 ,  H01F3/08

    CPC分类号： H01F1/37 ,  C04B35/265 ,  C04B35/2675 ,  H01F1/0311 ,  H01P1/32 ,  Y10T29/49076

    摘要： A part made of ferrimagnetic material with a spatial variation of the permeability value is obtained through heat treatment of a body of ferrimagnetic material at the temperture such that the free energy of the material is low and that a transformation into a material with higher free energy is obtained, stopping said heating before complete transformation and further machining of the part. The heat treatment is carried out under reduced pressure when a liquid phase develops at the heating temperature. When solid phase is maintained the body is heated in presence of a metal salt or oxide.

    摘要翻译： 通过在该温度下对铁氧体材料的体进行热处理，使得材料的自由能低，并且转化为具有较高自由能的材料，得到具有透气性值的空间变化的亚铁磁性材料的部分 在完成转换之前停止所述加热并进一步加工零件。 当在加热温度下发生液相时，在减压下进行热处理。 当固相保持时，身体在金属盐或氧化物的存在下被加热。

    Stress sensor with digital output
    56.
    发明授权
    Stress sensor with digital output 失效
    带数字输出的应力传感器

    公开(公告)号：US3807223A

    公开(公告)日：1974-04-30

    申请号：US24597972

    申请日：1972-04-20

    申请人： LIGNES TELEGRAPH TELEPHON

    发明人： JUILLERAT R ,  LEDUC P

    IPC分类号： G01L1/12 ,  G01L9/00 ,  G01B7/18 ,  G01L1/22

    CPC分类号： G01L9/0041 ,  G01L1/125 ,  G01L9/16 ,  Y10S73/02

    摘要： The sensor is based on the rotation of the easy axis of a thin magnetostrictive film under the stress to be measured. The sensor comprises a plurality of elementary cells located on the same substrate to which said stress is applied. Each cell comprises interrogating means and reading means associated with an elementary spot of magnetostrictive film. The angular position of the easy axis is determined through sequential interrogation of each elementary cell by means of pulsed magnetic fields as a change in the polarity of the sense pulse signal of a given elementary cell. The interrogating means is a set of lines printed according to a preset pattern which controls the coding of the binary output signal. The pulsed voltages induced in the sense circuit reverses it polarity when the interrogating field crosses the normal to the easy axis as rotated under the stress applied to the cell. The output signal conveys as a polarity reversal, the angular position information for further use. An example of use in instrumentation (pressure sensor) is described.

    摘要翻译： 该传感器基于在待测应力下的薄磁致伸缩膜的易轴旋转。 传感器包括位于施加了所述应力的同一基板上的多个基本单元。 每个单元包括与磁致伸缩膜的基本点相关联的询问装置和读取装置。 容易轴的角位置是通过脉冲磁场对每个单元进行连续询问来确定的，这是作为给定单元的感测脉冲信号极性的变化。 询问装置是根据控制二进制输出信号的编码的预设模式打印的一组线。 当在施加到电池的应力下旋转时，当询问场横穿容易轴的法线时，感测电路中感应的脉冲电压反转其极性。 输出信号作为极性反转，角位置信息进一步使用。 描述了在仪表（压力传感器）中使用的示例。

    Wide band rod antenna with impedance matching
    58.
    发明授权
    Wide band rod antenna with impedance matching 失效
    宽带天线与阻抗匹配

    公开(公告)号：US3611390A

    公开(公告)日：1971-10-05

    申请号：US3611390D

    申请日：1969-10-16

    申请人： LIGNES TELEGRAPH TELEPHON

    发明人： CHIRON BERNARD ,  DUFFAU LOUIS

    IPC分类号： H01Q9/30 ,  H01Q9/00

    CPC分类号： H01Q9/30

    摘要： A fraction of the antenna wire is coupled with a ferromagnetic material the electrical parameters of which meet the following condition: L1C1 1/16L2.1/f2 WHERE L1 is the unitary inductance per unit of length of the wire surrounded by the ferromagnetic material. C1 is the corresponding unitary capacitance. L is the geometrical length of the antenna. F IS THE OPERATING FREQUENCY WHICH VARIES WITHIN THE OPERATING BANDWIDTH. The ferromagnetic material is to be chosen so as to meet equation 1. As will be explained in further details, some ferromagnetic materials suitable for this use are commercially available. Available magnetic materials which do not comply with law (1) may be forced to comply through automatic control.

    Microwave magnetic materials with a hexagonal structure
    59.
    发明授权
    Microwave magnetic materials with a hexagonal structure 失效
    具有六角形结构的微波磁性材料

    公开(公告)号：US3573207A

    公开(公告)日：1971-03-30

    申请号：US3573207D

    申请日：1969-02-20

    申请人： LIGNES TELEGRAPH TELEPHON

    发明人： DESCHAMPS ANDRE

    IPC分类号： C04B35/26 ,  H01B1/10

    CPC分类号： C04B35/2633

    摘要： AN HEXAGONAL FERRITE COMPOSITION FOR MICROWAVE DEVICES IS OBTAINED BY DOUBLE SUBSTITUTION OF A PART OF THE FERRIC IONS IN A CONVENTIONAL ALKALINE-EARTH FERRITE (MO, 6RE2O3) BY COUPLES OF 1/2 (TI4+, NI2+) AND MN3+ OR BY TRIPLE SUBSTITUTION ADDING AL3+ TO THE TWO GROUPS ABOVE. THE MANUFACTURING PROCESS INCLUDES SINTERING OF SINGLE-CRYSTAL FLAKES OF THE FERRITE MATERIAL THE DIMENSIONS OF WHICH ARE NOT LARGER THAN .5 MM.

    Method and devices for converting coded binary signals into multilevel signals and for reconverting the latter into the former
    60.
    发明授权
    Method and devices for converting coded binary signals into multilevel signals and for reconverting the latter into the former 失效
    用于将编码的二进制信号转换成多个信号并将其转换成前体的方法和装置

    公开(公告)号：US3569955A

    公开(公告)日：1971-03-09

    申请号：US3569955D

    申请日：1968-10-11

    申请人： LIGNES TELEGRAPH TELEPHON

    发明人： MANIERE MAURICE A

    IPC分类号： H04L25/48 ,  H04L25/49 ,  H04L3/00

    CPC分类号： H04L25/4919

    摘要： Code converter for converting a first sequence of coded binary signals xeach of said signals being formed of m bits, having a given duration and being capable of taking 2m possible values, into a second sequence of multilevel signals zn whose amplitude has (2m 1- 1) possible levels proportional to the series of integers from - (2m- 1) to + (2m- 1) including zero. The converter comprises a register for supplying the signals xn of the first sequence, a modulo p adder circuit where p 2m having a first input connected to the register and a second input, said modulo p adder circuit generating a third sequence of m-bit binary signals yn, a nonborrow subtractor circuit having a first input being connected to the output of said adder circuit and a second input, a delay circuit having an input connected to the output of the adder circuit for delaying said signals yn by the duration of the signals xn and thereby delivering the signals yn1 at the time of occurence of the signal xn and an output connected to the second input of both said adder circuit and subtractor circuit. The nonborrow subtractor circuit provides a sequence of m-digit signals whose digits are - 1, 0 and + 1. Each digit of said m-digit signals is multiplied by a coefficient equal to the weight thereof to obtain multilevel components relative to each of said digits and these components are algebraically added. Means for reconverting the multilevel signals zn into the coded binary signals xn are also described.