Polarized interferential measurement wherein the modulation signal is adjusted to be equal to the duration of the measurement window
    31.
    发明授权
    Polarized interferential measurement wherein the modulation signal is adjusted to be equal to the duration of the measurement window 失效
    其中调制信号被调整为等于测量窗口的持续时间的偏振干涉测量

    公开(公告)号:US06239877B1

    公开(公告)日:2001-05-29

    申请号:US09236603

    申请日:1999-01-26

    Inventor: Claude Beauducel

    CPC classification number: G01N21/45

    Abstract: The invention is an interferential refractometry method and device using fine measurement of the displacement of the fringes of an interference pattern between two light beams with one of the beams undergoing phase variations due to variations in the refractive index thereof. The method comprises application, to one of the two beams, of a relatively fast periodic phase modulation by a modulating signal. Displacement of the fringes resulting from the combined application of the two modulations is picked up by a photodetector and a measuring system evaluates the slow modulation by determining the frequency spectrum of the signal coming from the detect or and measuring the phase shift affecting the fundamental frequency of this frequency spectrum. The method may be applied to detection of variations in the composition of mixtures, for example in analytical or preparative chromatography.

    Abstract translation: 本发明是一种干涉折光方法和装置,其使用两个光束之间的干涉图案的条纹的位移的精细测量,其中一个光束由于其折射率的变化而经历相位变化。 该方法包括通过调制信号向两个波束之一施加相对快速的周期性相位调制。 由两个调制的组合应用产生的边缘的位移由光电检测器拾取,并且测量系统通过确定来自检测器的信号的频谱来评估慢调制,或者测量影响基频的相移 这个频谱。 该方法可以用于检测混合物组成的变化,例如在分析或制备色谱中。

    Stationary system for the active and/or passive monitoring of an
underground deposit
    32.
    发明授权
    Stationary system for the active and/or passive monitoring of an underground deposit 失效
    用于主动和/或被动监测地下沉积物的固定系统

    公开(公告)号:US5363094A

    公开(公告)日:1994-11-08

    申请号:US991594

    申请日:1992-12-16

    CPC classification number: E21B47/123 G01V11/002

    Abstract: Monitoring of an underground effluent deposit (2) and the exploration thereof are performed by installing various devices or user modules : reception arrays (Ri, Rj, Rk) such as geophones or hydrophones, condition sensors (C1, C2) , tools requiring electric power supply, etc, in various locations along one or several wells (1) drilled down into a formation, behind well casings or in the annular space between these casings and tubings, and by connecting these devices to a surface station (4), by means of a particularly simple and reliable multi-channel transmission unit. The surface station adapts the commands thereof according to the device to be controlled in return, of receiving all the signals they transmit whether analog or digital and coded, and adapts to several modes of allocation of the transmission channels. With such a system, long-duration monitoring operations may be carried out on a large scale under satisfactory economic conditions.

    Abstract translation: 通过安装各种设备或用户模块来进行地下流出物沉积物(2)的监测及其探索:接收阵列(Ri,Rj,Rk)如地震检波器或水听器,状态传感器(C1,C2),需要电力的工具 供应等,沿着钻进地层中的一个或多个井(1)的各个位置,在井壳之后或这些壳体和管道之间的环形空间中,以及通过装置将这些装置连接到地面站(4) 一个特别简单可靠的多通道传输单元。 地面台根据待控制的装置适应其命令,接收它们发射的所有信号,无论是模拟还是数字编码,并适应于传输信道的多种分配模式。 通过这样一个系统,长期监测操作可以在令人满意的经济条件下大规模进行。

    Integrated reception system of great length for sensing acoustic waves
    33.
    发明授权
    Integrated reception system of great length for sensing acoustic waves 失效
    用于感应声波的大长度综合接收系统

    公开(公告)号:US5204843A

    公开(公告)日:1993-04-20

    申请号:US723181

    申请日:1991-06-28

    Inventor: Claude Beauducel

    CPC classification number: G01V1/208 Y10S310/80 Y10T29/49005

    Abstract: A reception system including a central core (5) formed of a traction cable (6) and a harness (7) of conducting wires. A fibrous or porous acoustic screen (8) made, for example, from a fibrous or porous material is formed around the core. Sensitive elements are arranged outside this screen, with discontinuous inner electrodes (9) connected to the different wires of the central harness (7), and a common outer electrode (13). A pipe made of a piezoelectric material (12) is formed therebetween. The whole is covered with a protective sheath (2). With such a multi-layered sensitive structure, the manufacturing process of the reception system can be simplified.

    Abstract translation: 一种接收系统,包括由牵引电缆(6)形成的中心芯(5)和导线的线束(7)。 在芯周围形成例如由纤维或多孔材料制成的纤维或多孔声屏(8)。 敏感元件布置在该屏幕的外部,具有连接到中心线束(7)的不同导线的不连续的内部电极(9)和公共外部电极(13)。 在它们之间形成由压电材料(12)制成的管。 整个被保护套(2)覆盖。 利用这种多层敏感结构,可以简化接收系统的制造过程。

    Piezoelectric sensor comprising at least one pair of flexible sensitive
elements of great length
    34.
    发明授权
    Piezoelectric sensor comprising at least one pair of flexible sensitive elements of great length 失效
    压电传感器包括至少一对长的柔性敏感元件

    公开(公告)号:US4984222A

    公开(公告)日:1991-01-08

    申请号:US378323

    申请日:1989-07-11

    CPC classification number: G01V1/208 B06B1/0688 H01L41/1132

    Abstract: A piezoelectric sensor comprising at least one pair of flexible sensitive elements of great length whose respective electrodes are connected in parallel. The interconnection is provided by interlacing the sensitive elements so that the two electrodes of each of the flexible sensitive elements are alternately in electric contact with the two electrodes of at least one other sensitive element. The sensor may be formed by winding at least one pair of sensitive elements on a support in two spirals of opposite directions with interlacing. The chosen assembly method provides both good mechanical strength and simplifies the electric connections because of the multiple electric contacts between the electrodes.

    Abstract translation: 一种压电传感器,包括至少一对长度相当的柔性敏感元件,其各自的电极并联连接。 互连通过交织敏感元件提供,使得每个柔性敏感元件的两个电极与至少一个其它敏感元件的两个电极交替地电接触。 传感器可以通过以交错方式将相对方向的两个螺旋中的至少一对敏感元件缠绕在支撑件上而形成。 所选择的组装方法提供良好的机械强度并且由于电极之间的多次电接触而简化电连接。

    Increased sensitivity piezoelectric hydrophones
    35.
    发明授权
    Increased sensitivity piezoelectric hydrophones 失效
    增加灵敏度的压电水听器

    公开(公告)号:US4810913A

    公开(公告)日:1989-03-07

    申请号:US86947

    申请日:1987-08-19

    CPC classification number: G01V1/208 H01L41/1132 Y10S310/80

    Abstract: A hydrophone is provided having at least one flexible piezoelectric sensitive element applied to a support, each sensitive element being formed of a flexible piezoelectric film associated with two electrodes and is applied to a synthetic plastic material support one face at least of which has hollow parts of very different shapes, for example an homogeneous distribution of cups, honeycombs, holes, etc, whose dimensions are determined as a function of the mechanical characteristics of the films used. The stresses applied thereto result in deforming each film inwardly of the hollow parts, which very greatly increases the sensitivity.

    Abstract translation: 提供了一种水听器,其具有施加到支撑件的至少一个柔性压电敏感元件,每个敏感元件由与两个电极相关联的柔性压电膜形成,并且被施加到合成塑料材料支撑件,其中至少一个表面具有中空部分 非常不同的形状,例如杯,蜂窝,孔等的均匀分布,其尺寸被确定为所使用的膜的机械特性的函数。 施加的应力导致每个膜向中空部分变形,这极大地增加了灵敏度。

    Method and device for improving the sensitivity and the signal to noise
ratio of piezo-electric transducers having a plurality of sensors
combined in parallel
    36.
    发明授权
    Method and device for improving the sensitivity and the signal to noise ratio of piezo-electric transducers having a plurality of sensors combined in parallel 失效
    具有并联组合的多个传感器的压电换能器的灵敏度和信噪比的提高方法和装置

    公开(公告)号:US4801838A

    公开(公告)日:1989-01-31

    申请号:US64570

    申请日:1987-06-22

    CPC classification number: H03F3/70 G01V1/20

    Abstract: A method and device are provided for improving the sensitivity and signal to noise ratio of transducers including several piezo-electric sensors interconnected in parallel to the input of an electric charge amplifier, said process consisting essentially in reducing the electric capacity of the combination of parallel sensors at the input of the amplifier so as to reduce the amplification gain applied to the noise without changing that which is applied to the signals picked up. This operation is achieved by means of an impedance transformer or else by means of at least one charge transfer capacitor connected by at least one switch alternately to the sensors and to the capacitor of the amplifier.

    Abstract translation: 提供了一种用于提高换能器的灵敏度和信噪比的方法和装置,包括与电荷放大器的输入端并行互连的若干压电传感器,所述过程主要在于降低并联传感器组合的电容 在放大器的输入端,以减少施加于噪声的放大增益,而不改变施加到拾取信号的放大增益。 该操作通过阻抗变换器或者通过至少一个电荷转移电容器来实现,所述至少一个电荷转移电容器由至少一个开关交替地连接到传感器和放大器的电容器。

    Device for amplifying and sampling high dynamic signals
    37.
    发明授权
    Device for amplifying and sampling high dynamic signals 失效
    用于放大和采样高动态信号的装置

    公开(公告)号:US4779055A

    公开(公告)日:1988-10-18

    申请号:US3015

    申请日:1987-01-13

    CPC classification number: H03G3/30 G01V1/245

    Abstract: A device is provided for amplifying and sampling signals in an acquisition chain before application thereof to an analog-digital converter and in particular multiplexed signals. It includes two blocking samplers to which a gain of 1, 2 or 16 for the first one and a gain of 2 or 16 for the second one may be applied by selective closure of switches. A switch allows either the input signal or the signal from the second sampler to be applied to the first sampler. Another switch allows the outputs of one or other of the samplers to be connected to the input of a voltage comparator. By a very limited number of comparison steps, gain modifications and possible relooping of the output to the input of the device for one or more reamplifications, an input signal may be given any gain between 2.sup.0 and 2.sup.13.

    Abstract translation: 提供了一种装置,用于在采集链中将信号应用于模拟数字转换器,特别是多路复用信号之前,将信号放大和采样。 它包括两个阻塞采样器,其中第一个增益为1,2或16,对于第二个采样器可以通过选择性闭合开关来施加增益为2或16的增益。 开关允许将输入信号或来自第二采样器的信号施加到第一采样器。 另一个开关允许一个或另一个采样器的输出连接到电压比较器的输入端。 通过非常有限数量的比较步骤,对于一个或多个再扩展,增益修改和可能的输出到设备的输入的重新循环,输入信号可以在20和213之间给予任何增益。

    Pressure wave sensing device of the piezoelectric type with continuous
structure and a method of manufacturing same
    38.
    发明授权
    Pressure wave sensing device of the piezoelectric type with continuous structure and a method of manufacturing same 失效
    具有连续结构的压电型压力传感装置及其制造方法

    公开(公告)号:US4768173A

    公开(公告)日:1988-08-30

    申请号:US69173

    申请日:1987-07-02

    CPC classification number: G01V1/208 Y10S310/80

    Abstract: A pressure wave sensor device is provided including at least two sensitive flexible piezoelectric elements wound in two helices in opposite directions of a tubular support and a method for manufacturing same, said device including a copper conducting ribbon wound helically between the two windings of opposite direction and in the same direction as the underlying winding so as to avoid short circuits at the crossing points of the turns and to improve the electric and mechanical couplings between the two sensitive elements, said tubular support being provided with collector assemblies at regular intervals and wound over the whole of its length with the sensitive elements and the conducting ribbon, the different windings then being cut to the right length at the level of the collector assemblies and connected electrically thereto.

    Abstract translation: 提供一种压力波传感器装置,其包括至少两个以管状支撑件的相反方向缠绕在两个螺旋中的敏感柔性压电元件及其制造方法,所述装置包括螺旋形地缠绕在相反方向的两个绕组之间的铜导电带,以及 在与下面的绕组相同的方向上,以避免在匝的交叉点处的短路,并且改善两个敏感元件之间的电气和机械耦合,所述管状支撑件以规则的间隔设置有收集器组件, 其整个长度与敏感元件和导电带一起,然后将不同的绕组在收集器组件的水平面处切割成正确的长度并且与其电连接。

    Device and method for amplifying and sampling multiplexed signals
    39.
    发明授权
    Device and method for amplifying and sampling multiplexed signals 失效
    用于放大和采样复用信号的装置和方法

    公开(公告)号:US4426624A

    公开(公告)日:1984-01-17

    申请号:US286323

    申请日:1981-07-24

    CPC classification number: H03G3/30 G11C27/026

    Abstract: An amplification and sampling device for multiplexed analog signals comprises a continuous chain of amplification elements, means for giving to each of said elements a gain selected from a predetermined set of values, sample-and-hold units for memorizing the amplified voltages available at the output of said elements, means for correcting the drift or noise voltage of the amplification chain and selection means for applying to the amplification chain the samples of the multiplexed analog signals or the voltages memorized in the sample-and-hold units, in accordance with the voltage level obtained at the output of the amplification chain as compared with reference voltages.

    Abstract translation: 用于复用的模拟信号的放大和采样装置包括连续的放大元件链,用于向每个所述元件提供从预定值值中选出的增益的装置,用于存储在输出端可用的放大电压的采样和保持单元 的所述元件,用于校正放大链的漂移或噪声电压的装置和用于根据电压向放大链施加多路复用的模拟信号的样本或存储在采样和保持单元中的电压的选择装置 与参考电压相比,在放大链的输出处获得的电平。

    Microprogrammed computing device
    40.
    发明授权
    Microprogrammed computing device 失效
    微编程计算设备

    公开(公告)号:US4007444A

    公开(公告)日:1977-02-08

    申请号:US415326

    申请日:1975-11-13

    CPC classification number: G06F9/4881 G06F9/226 G06F9/26

    Abstract: Microprogrammed computing device comprising a data processing system, a central memory operatively connected thereto, means for exchanging data with peripheral devices, a system for controlling the execution of orders issued from the memory, a system for hierarchically classifying the tasks in a list and making the processing system available for the task having the first priority and a system for managing said list, means for testing the availability of said peripheral devices and means for adapting the processing system to each new task to which the first priority is given, whereby several computing and data exchange processes may be performed by the same device.

    Abstract translation: 微编程计算设备,包括数据处理系统,与其可操作地连接的中央存储器,用于与外围设备交换数据的装置,用于控制从存储器发出的命令的执行的系统,用于对列表中的任务进行分层分类, 可用于具有第一优先权的任务的处理系统和用于管理所述列表的系统的装置,用于测试所述外围设备的可用性的装置以及用于使处理系统适应于给予第一优先级的每个新任务的装置,由此几个计算和 数据交换过程可以由相同的设备执行。

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