知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

980 records (took 0.016 seconds)

    Method and device for providing a variable delay line
    2.
    发明授权
    Method and device for providing a variable delay line 失效
    用于提供可变延迟线的方法和装置

    公开(公告)号：US3918012A

    公开(公告)日：1975-11-04

    申请号：US49285674

    申请日：1974-07-29

    Applicant: COMMISSARIAT ENERGIE ATOMIQUE

    Inventor： PEUZIN JEAN CLAUDE

    IPC: H03H9/38 ,  H03H9/26 ,  H03H9/30 ,  H03H9/32

    CPC classification number: H03H9/38

    Abstract: This invention relates to a method and device for providing a variable delay line. The delay is adjusted by the movement of a wall separating two adjacent portions having different electromechanical properties which are thereby discontinuous. An acoustic wave is produced in one end portion having a carrier frequency which is modulated by the signal to be delayed, the acoustic wave propagating inside the bar in a direction which is perpendicular to the discontinuity surface. The electric signal produced by the surface is connected to a receiver circuit and the delay is obtained by electromechanical means varying the position of the wall along the direction perpendicular to the discontinuous surface.

    Abstract translation: 本发明涉及提供可变延迟线的方法和装置。 通过分隔具有不同机电特性的两个相邻部分的壁的移动来调节延迟，由此是不连续的。 在具有由要延迟的信号调制的载波频率的一个端部产生声波，声波在垂直于不连续表面的方向上在该条内传播。 由表面产生的电信号连接到接收器电路，并且延迟通过机电装置获得，该机电装置沿垂直于不连续表面的方向改变壁的位置。

    Device for acoustic detection in a nuclear reactor
    3.
    发明授权
    Device for acoustic detection in a nuclear reactor 失效
    核反应堆中用于声学检测的装置

    公开(公告)号：US3913407A

    公开(公告)日：1975-10-21

    申请号：US27287972

    申请日：1972-07-18

    Applicant: COMMISSARIAT ENERGIE ATOMIQUE

    Inventor： HANFF MICHEL ,  LIONS NOEL ,  PERONNET JEAN

    IPC: G21C17/025 ,  G21C17/10 ,  G01H3/00

    CPC classification number: G21C17/025 ,  G21C17/10

    Abstract: The device comprises a first acoustic conductor placed vertically within the coolant liquid contained in a nuclear reactor vessel and a second coaxial acoustic conductor extending to the exterior of the reactor vessel. The device essentially comprises an accelerometer assembly for detecting signals delivered by the second conductor and an amplifier which applies the detected signals to measuring instruments located outside the reactor vessel. The accelerometer comprises an amplifying pressure needle carried by the upper end of the second conductor, a piezoelectric ceramic element, a block fitted with a spring for applying the ceramic element against the needle and a preamplifier connected in series with the amplifier.

    Abstract translation: 该装置包括垂直放置在容纳在核反应堆容器中的冷却剂液体中的第一声导体和延伸到反应器容器外部的第二同轴声导体。 该装置基本上包括用于检测由第二导体传送的信号的加速度计组件和将检测到的信号施加到位于反应堆容器外部的测量仪器的放大器。 加速度计包括由第二导体的上端承载的放大压力针，压电陶瓷元件，装配有用于将陶瓷元件施加到针上的弹簧的块和与放大器串联连接的前置放大器。

    Supporting pivot system for a centrifuge bowl
    5.
    发明授权
    Supporting pivot system for a centrifuge bowl 失效
    用于离心机碗的支撑枢轴系统

    公开(公告)号：US3904256A

    公开(公告)日：1975-09-09

    申请号：US37223873

    申请日：1973-06-21

    Applicant: COMMISSARIAT ENERGIE ATOMIQUE

    Inventor： PFEIFER HANS

    IPC: F16C11/06 ,  B01D59/20 ,  B04B9/00 ,  B04B9/12 ,  F16C17/10 ,  F16C32/00

    CPC classification number: B04B9/12 ,  B04B9/00

    Abstract: A step-bearing pivot having a spherical lower end is secured to the centrifuge bowl and a spherical step-bearing cup formed at the bottom of a lifting-oil chamber rests on elastic damping means which essentially comprise a hollow elastic shaft surrounded by and attached to a hollow damping support of slightly conical shape, a leak-tight cylindrical-conical outer casing which forms a closed space containing the shaft-support assembly and filled with damping oil which has low variation of viscosity, an inner tube and axial deflector for ensuring laminar flow of a cooling fluid within the central portion of the hollow elastic shaft.

    Abstract translation: 具有球形下端的步进轴承固定到离心机碗，并且形成在提升油室底部的球形步进承载杯搁置在弹性阻尼装置上，弹性阻尼装置基本上包括由中空弹性轴包围并连接到 一个略微圆锥形的空心阻尼支架，一个密封的圆锥形外壳，它形成一个封闭的空间，它包含轴支撑组件，并填充了粘度变化小的阻尼油，用于确保层流的内管和轴向偏转器 在中空弹性轴的中心部分内的冷却流体的流动。

    Defect detection system using an AND gate to distinguish specific flaw parameters
    6.
    发明授权
    Defect detection system using an AND gate to distinguish specific flaw parameters 失效
    缺陷检测系统使用与门来区分特定的缺陷参数

    公开(公告)号：US3895290A

    公开(公告)日：1975-07-15

    申请号：US38205273

    申请日：1973-07-23

    Applicant: COMMISSARIAT ENERGIE ATOMIQUE

    Inventor： AUDENARD BERNARD ,  PIGEON MICHEL ,  STACH CLAUDE

    IPC: G01N27/90 ,  H02H3/26 ,  G01R33/12

    CPC classification number: G01N27/9046 ,  H02H3/265

    Abstract: The device has a high-speed phase meter which responds in one period of the defect signal to generate an analog signal which is proportional to the phase of the defect signal. A high-speed phase comparator delivers a phase logic signal when the phase analog signal is in a range between first and second threshold levels, a circuit for detecting the direction of the first phase unbalance delivers a direction logic signal when the first variation in the phase analog signal is in the direction of the range between the first and second threshold levels. A circuit generates a peak to peak amplitude analog signal whose amplitude is proportional to the defect signal. A high-speed peak amplitude comparator delivers a peak amplitude signal when the amplitude of the input analog signal is higher than a third threshold, at least one positioning cell is used which supplies positioning logic information and an AND-gate delivers a logical signal alarm signal when the aforementioned logical items are present.

    Abstract translation: 该装置具有高速相位计，其在缺陷信号的一个周期中进行响应，以产生与缺陷信号的相位成比例的模拟信号。 当相位模拟信号在第一和第二阈值电平之间的范围内时，高速相位比较器提供相位逻辑信号，用于检测第一相位不平衡的方向的电路在相位的第一变化时传送方向逻辑信号 模拟信号在第一和第二阈值电平之间的范围的方向上。 电路产生幅度与缺陷信号成比例的峰 - 峰振幅模拟信号。 当输入模拟信号的幅度高于第三阈值时，高速峰值振幅比较器输出峰值振幅信号，使用提供定位逻辑信息的至少一个定位单元，并且与门传递逻辑信号报警信号 当存在上述逻辑项目时。

    Phase-shift cell and a phase shifter for the application of said cell
    8.
    发明授权
    Phase-shift cell and a phase shifter for the application of said cell 失效
    相移电池和相位转换器应用于细胞

    公开(公告)号：US3876949A

    公开(公告)日：1975-04-08

    申请号：US29293372

    申请日：1972-09-28

    Applicant: COMMISSARIAT ENERGIE ATOMIQUE

    Inventor： ENCELLAZ ROBERT ,  BONNEFOY-CLAUDET JEAN-PAUL ,  JEDLITSCHKA HANS ,  MARTIN MICHEL ,  TOURNIER EDMOND

    IPC: H03K5/14 ,  H03B19/00 ,  H03H11/16 ,  H03K5/15 ,  H03K7/08 ,  H03K17/00

    CPC classification number: H03K5/1504 ,  H03K7/08

    Abstract: The phase-shift cell comprises in combination a programmable generator which produces constant currents, a bistable threshold circuit connected through an integrator to the output of the generator, and a feedback loop connected between the output of the threshold circuit and the input of the generator. Reversals of the threshold circuit to a first state are initiated by synchronizing signals to be phase-shifted, reversals to a second state being initiated by the output signal of the integrator when the signal attains the threshold level of the bistable circuit. The phase shift of the output signal of said bistable circuit with respect to the input signal is determined by the instant T.sub.1 of reversal to the second state. An additional current generator connected between the aforementioned generator and the integrator modifies the output signal of this latter in order to vary the instant of reversal of the bistable threshold circuit to the second state.

    Laser generator having a reduced emission spectrum
    9.
    发明授权
    Laser generator having a reduced emission spectrum 失效
    具有减少的发射光谱的激光发生器

    公开(公告)号：US3872402A

    公开(公告)日：1975-03-18

    申请号：US39926573

    申请日：1973-09-20

    Applicant: COMMISSARIAT ENERGIE ATOMIQUE

    Inventor： SANCHEZ FRANCIS

    IPC: H01S3/08 ,  H01S3/105 ,  H01S3/106

    CPC classification number: H01S3/106 ,  H01S3/08059 ,  H01S3/105

    Abstract: The laser generator comprises a suitably excited active medium placed within a resonator. The resonator is constituted by a mirror having a high coefficient of reflection and by a selective reflector assembly comprising a plurality of plates having parallel faces cut in a birefringent material in a direction parallel to the optical axis. The plates as well as their neutral lines are parallel to each other, each plate being preceded by a polarizer in which the direction of polarization makes an angle of 45* with the neutral lines.

    Abstract translation: 激光发生器包括置于谐振器内的适当激励的有源介质。 谐振器由具有高反射系数的反射镜和选择性反射器组件构成，该反射器组件包括在平行于光轴的方向上具有以双折射材料切割的平行面的多个板。 板和它们的中性线彼此平行，每个板之前是偏振器，其中偏振方向与中性线成45°的角度。

    Generator for producing rectilinear vibrations at a controlled velocity especially for use in Mossbauer spectrometery
    10.
    发明授权
    Generator for producing rectilinear vibrations at a controlled velocity especially for use in Mossbauer spectrometery 失效
    用于以受控速度产生直线振动的发电机，特别用于莫斯鲍尔光谱测定

    公开(公告)号：US3872333A

    公开(公告)日：1975-03-18

    申请号：US33682573

    申请日：1973-02-28

    Applicant: COMMISSARIAT ENERGIE ATOMIQUE

    Inventor： IMBERT PIERRE ,  LERICQUE JEAN-FRANCOIS

    IPC: G21K1/12 ,  H02K33/18 ,  H02K33/12

    CPC classification number: G21K1/12 ,  H02K33/18

    Abstract: The generator is of the type comprising a driving unit formed by a stationary magnet and by a driving electromagnetic coil, a rod rigidly fixed to the coil and a velocity transducer for regulating the vibrations by electronic control and constituted by a magnetized pin. The generator essentially comprises a second rod attached to the other end of the magnetized pin and a second driving unit in which the polarity of the magnet is opposite to that of the first. The second rod and second driving unit are mounted symmetrically with the first with respect to the central transverse section of the magnetized pin.

    Abstract translation: 该发电机是由固定磁铁和驱动电磁线圈形成的驱动单元，刚性地固定在线圈上的杆，以及通过电子控制来调节振动并由磁化销构成的速度传感器。 发电机基本上包括附接到磁化销的另一端的第二杆和第二驱动单元，其中磁体的极性与第一驱动单元的极性相反。 第二杆和第二驱动单元相对于磁化销的中心横截面首先对称地安装。

Patent Agency Ranking