公开(公告)号：WO1997031271A1

公开(公告)日：1997-08-28

申请号：PCT/EP1997000807

申请日：1997-02-20

Applicant: MTU MOTOREN- UND TURBINEN-UNION MÜNCHEN GMBH ,  KERNER, Leander ,  VOLZ, Hans-Dieter

Inventor： MTU MOTOREN- UND TURBINEN-UNION MÜNCHEN GMBH

IPC: G01P05/00

CPC classification number: F01D21/003 ,  G01K1/146 ,  G01P5/00 ,  G01P21/025 ,  G05D3/12 ,  H02K7/06 ,  H02K2201/18

Abstract: The invention concerns a device for precisely positioning a measuring probe along a probe axis (A) and in a circular manner relative to this axis. The device has a compact structure owing to the coaxial arrangement of the adjusting units for the rotation and longitudinal displacement of the probe and a step-down gear for reducing the speed of rotation disposed between the adjusting units. A coaxial passage through which the probe shaft can be inserted and moved is also kept free.

Abstract translation: 本发明涉及一种设备，用于探针的沿探针轴线A精确定位和圆相对于该轴线。 该装置的紧凑结构是致动器的同轴布置用于旋转和用于探针的纵向位移，并通过设置在减速器隔着并允许通过该探针轴和可动保持采用同轴位于通道。

公开(公告)号：WO1990015334A1

公开(公告)日：1990-12-13

申请号：PCT/US1990003051

申请日：1990-05-31

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： MASSACHUSETTS INSTITUTE OF TECHNOLOGY ,  HOLLISTER, Walter, M.

IPC: G01P05/00

CPC classification number: G01S13/951 ,  G01P5/00 ,  G01S13/60 ,  Y02A90/18

Abstract: A method for determining wind velocity in a region in which a turn is being executed by an aircraft uses a positional detection system to obtain positional data pertaining to the aircraft during execution of the turn (figure 1a), calculates the ground speed vector of the aircraft at a plurality of data points around the turn and determines the wind vector that best fits the ground speed vector data (figure 1b).

Abstract translation: 用于确定飞行器正在执行的区域中的风速的方法使用位置检测系统在转弯执行期间获得与飞机有关的位置数据（图1a），计算飞行器的地面速度矢量 在转弯周围的多个数据点，并确定最适合地面速度矢量数据的风向量（图1b）。

公开(公告)号：WO1990011528A1

公开(公告)日：1990-10-04

申请号：PCT/FR1990000194

申请日：1990-03-22

Applicant: INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE ... ,  HERMENT, Alain ,  DEMOMENT, Guy ,  GUGLIELMI, Jean-Paul ,  DUMEE, Philippe ,  PERONNEAU, Pierre ,  BARBET, Alain

Inventor： INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE ...

IPC: G01P05/00

CPC classification number: G01P5/244

Abstract: The process and device can be used, in particular, for extracting certain parameters from a Doppler signal in ultrasonic medical imaging. The device uses, as an imput parameter, for the calculation of the average frequency the correlation coefficients Im(Cxx) corresponding to the imaginary part of the signal. These coefficients are applied in sequence to a multiplier input (10). The other input receives the weighting coefficients in the form of 0,1/0, 1/π,...,(-1)p+i/πp, where p is the number of weighting coefficients, stored in a register (11). The partial products are accumulated and furnish a representative sum of the average frequency.

公开(公告)号：WO1997042509A1

公开(公告)日：1997-11-13

申请号：PCT/DE1997000907

申请日：1997-05-06

Applicant: HEUSER, Ralf ,  HÜTTEMANN, Michael ,  PUTTKE, Bernhard ,  AGUEEV, Vladimir ,  RASTOPOV, Stanislav

Inventor： HEUSER, Ralf ,  HÜTTEMANN, Michael

IPC: G01P05/00

CPC classification number: G01P5/245 ,  G01F1/667 ,  G01F1/668 ,  G01P5/248 ,  G01P13/02 ,  G01P13/025

Abstract: The invention relates to a method of measuring the rate of flow of gaseous or liquid media using ultrasound, and a measuring device suitable for carrying out said process. Known ultrasound measuring devices use pairs of acoustic transmitters and receivers facing each other. The wind-controlled sound velocity in the measured sections is determined by the measurement of operation times or by the measurement of phase displacements in relation to the output signal. Sound velocity is no longer controlled by physical conditions of the wind due to the fact that measurement occurs in alternate directions for which high-grade transmitters/receivers are required. According to the present invention in addition to measurement in at least one measured section the operation time of a signal is determined within a reference section which is connected to the medium and in which there is no flow, but otherwise the conditions are the same as in the medium, and the rate of flow of the medium in each signal direction is derived from the difference of the reciprocal values of the operation times of each measured section and the reference section. The method is suitable for all flow measurements in gaseous or liquid media.

Abstract translation: 已知的超声波测量装置使用对面向声学发射器和接收器。 风影响声音的速度在所测量的距离，通过测量传播时间或由相对于所述输出信号的测量的相移来确定。 的空气的物理性质的声速的依赖性被消除，通过以交替的方向测量，并因此需要高品质的发送器/接收器。 本发明的方法进行操作，以便它在除确定为测量至少一个测量路径也的信号的传播时间中的连接到所述介质参考路径，其中没有流动，但在其他方面为准相同的条件在介质中，并在介质的流动速度 相应的信号方向从各自的测量路径和参考路径的条款的倒数之差而得。 该方法适用于以气态或液态介质中的所有电流测量。

公开(公告)号：WO1997012248A1

公开(公告)日：1997-04-03

申请号：PCT/FR1996001491

申请日：1996-09-24

Applicant: SCHLUMBERGER INDUSTRIES S.A. ,  BENETEAU, Lionel ,  FROELICH, Benoît

Inventor： SCHLUMBERGER INDUSTRIES S.A.

IPC: G01P05/00

CPC classification number: G01P5/248 ,  G01F1/667 ,  G01P5/245

Abstract: A method for measuring the flow rate of a fluid between two points in a fluid flow, wherein a measurement of the respective propagation times of two acoustic signals transmitted in opposite directions is combined with a measurement of the acoustic phase-shifts respectively induced in each signal, each received signal is sampled and digitised and the corresponding acoustic phase-shift is determined by synchronous detection. The method comprises a series of iterations each of which involves determining a programmable phase-shift dependent on the value of the acoustic phase-shift produced by synchronous detection in the previous iteration, whereby the result of the synchronous detection step in the current iteration is as close to zero as possible, and the acoustic phase-shift is therefore substantially the same as the last programmable phase-shift.

Abstract translation: 一种用于测量流体流中两点之间的流体流量的方法，其中将在相反方向上传输的两个声信号的相应传播时间的测量与分别在每个信号中感应的声相移的测量相结合 ，每个接收的信号被采样和数字化，并且通过同步检测来确定相应的声相移。 该方法包括一系列迭代，每个迭代涉及根据在先前迭代中的同步检测产生的声相移的值来确定可编程相移，由此当前迭代中的同步检测步骤的结果为 尽可能接近于零，因此声相移基本上与最后可编程相移相同。

公开(公告)号：WO1986001605A1

公开(公告)日：1986-03-13

申请号：PCT/NL1985000035

申请日：1985-08-23

Applicant: STICHTING SPEURWERK BAGGERTECHNIEK ,  DER KINDEREN, Wilhelmus, Johannes, Godefriedus, ...

Inventor： STICHTING SPEURWERK BAGGERTECHNIEK

IPC: G01P05/00

CPC classification number: G01P5/242

Abstract: A device for determining the (mean) velocity in a flowing fluid, of the type including an ultrasound transmitter and a receiver coupled therewith for receiving ultrasounds reflected from the fluid, which are amplified and demodulated so as to produce a low-frequency Doppler-signal, that is subsequently analised by a spectrumanalyser, consisting of a number (n) of bandpass filters, peakdetectors being provided to determine the energy values of the frequency components obtained by said bandpassfilters, and a calculation unit being used to calculate that frequency, at which the low-frequency Doppler-signal appears to have a maximum, the latter being a measure for the (mean) flowing velocity. The calculation unit includes components, which are designed to cause the energy values of the individual frequency components of the frequency spectrum to decrease according to a monotonously decreasing correction curve.

公开(公告)号：WO1979001039A1

公开(公告)日：1979-11-29

申请号：PCT/FR1979000040

申请日：1979-05-07

Applicant: SOC SFENA ,  LEBRUN J

Inventor： SOC SFENA

IPC: G01P05/00

CPC classification number: G05D1/0615

Abstract: Process for fast detection of a wind gradient. This process uses the relationship between the aerodynamic slope a, the total slope T and the anemometric speed V, relationship which may be formulated as follows: (FORMULA) wherein s is the laplacian operator, A is a constant or zero value, in case of normal night without any disturbances, and which rises in case of a wind gradient, head wind becoming down wind, and Vsel is an instruction value. Said value A is mixed with a representative value of the aerodyne capacity to overcome a wind gradient, so as to obtain a composite signal compared to a reference value. The invention may be used during the approach phase of an aerodyne.

Abstract translation: 快速检测风梯度的过程。 该过程使用空气动力学斜率a，总斜率T和风速度V之间的关系，其关系可以表示如下：（公式）其中s是拉普拉斯算符，A是常数或零值，在 正常的夜晚没有任何干扰，并且在风梯度的情况下升高，头风变风，Vsel是指令值。 所述值A与空气容量的代表值混合以克服风梯度，从而与参考值相比获得复合信号。 本发明可以在空气的接近阶段使用。

公开(公告)号：WO1997031270A1

公开(公告)日：1997-08-28

申请号：PCT/EP1997000515

申请日：1997-02-06

Applicant: MTU MOTOREN- UND TURBINEN-UNION MÜNCHEN GMBH ,  KERNER, Leander

Inventor： MTU MOTOREN- UND TURBINEN-UNION MÜNCHEN GMBH

IPC: G01P05/00

CPC classification number: G05D3/12 ,  G01P21/025

Abstract: The device is designed to position a measuring sensor, especially a sensor head at an angle to the sensor shaft, precisely at the point of measurement and in the direction of a fluid flowing in a test tube, in which there is an adjuster by means of which the measuring sensor in a coaxial arrangement can be adjusted via a first adjusting motor about its axis and/or by a second adjusting motor along its axis; there is a control device communicating with an electronic computer for sensor adjustment; an adjuster coupled to the sensor to rotate in unison therewith has a rotatable pendulum which, in the position of rest transversely to the test tube axis defines the zero position of the sensor; limit positions of the pendulum are predetermined from a relative movement of the adjuster about said axis which can be photometrically converted into position signals, and the computer mathematically halves the angular adjustment calculated from the position signals received and sets the adjuster with the sensor to mechanical zero via the relevant positioning stop commands.

Abstract translation: 与该设备是一个测量探针，特别是具有至少一个从探头传感器头的轴线横向地成角度可以是可调节精确到测量点和压力的在试管中的流体流动普遍存在的方向，并且其中：提供了一种致动器与在通过同轴布置的测量探头 第一伺服电机是可调节的绕其轴线和/或在其轴的方向上的第二定位马达; 提供了一种用于将探头位移与电子计算机控制单元进行通信; 一旋转地固定连接至具有可旋转地安装摆，其限定在静止横向位置到试管轴线探测器的零位调节装置的探针; 从绕所述相对于零位置其在光位置信号技术上可行的轴线摆极限位置的Justiergerätes的相对位移被限定; 计算机数学平分从接收到的位置信号的角度定位，并与探针过度demgemässe致动停止调节所述调节装置计算出的命令，以机械地为零。

公开(公告)号：WO1995033999A1

公开(公告)日：1995-12-14

申请号：PCT/GB1995001278

申请日：1995-06-02

Applicant: ISIS INNOVATION LIMITED ,  AINSWORTH, Roger, William ,  THORPE, Steven, John

Inventor： ISIS INNOVATION LIMITED

IPC: G01P05/00

CPC classification number: G01P5/26 ,  G01P5/001 ,  G01S7/4812 ,  G01S7/497 ,  G01S17/58 ,  G01S17/89 ,  G01S2007/52014

Abstract: Fluid velocity measurement apparatus which utilises Doppler-shift spectral analysis includes a narrow line width light source (1), the light from which passes through a beam expander (3) to provide an irradiated region, for example a two-dimensional plane, in which velocity measurements may be taken. Light scattered from small particles in the irradiated region is collected in an imaging system (4) which enables spectral analysis of the scattered light for determining the velocity of the light scattering particles in the irradiated region. A single camera (13) is used in the imaging system (4) to obviate the need for costly electronics to synchronise images obtained. Also to improve the accuracy of measurement, selected parameters of the apparatus may be measured (2,5) to allow for perturbations in the velocity measurements obtained.

Abstract translation: 利用多普勒频移分析的流体速度测量装置包括窄线宽度光源（1），来自光束扩展器（3）的光线从光束扩展器（3）提供照射区域，例如二维平面，其中 可以进行速度测量。 在照射区域的小颗粒散射的光被收集在能够对散射光进行光谱分析以确定照射区域中的光散射粒子的速度的成像系统（4）中。 在成像系统（4）中使用单个照相机（13），以避免需要昂贵的电子设备来同步所获得的图像。 另外为了提高测量精度，可以测量装置的选定参数（2,5）以允许所获得的速度测量值的扰动。

公开(公告)号：WO1995033998A1

公开(公告)日：1995-12-14

申请号：PCT/FR1995000729

申请日：1995-06-06

Applicant: FULL IMAGING SYSTEM - FIS ,  CLOT, André ,  ROMATIER, Laurent ,  HAMEL, Joseph

Inventor： FULL IMAGING SYSTEM - FIS

IPC: G01P05/00

CPC classification number: G02B27/144 ,  G01P3/366 ,  G01P5/26 ,  G01S7/4916 ,  G01S17/58 ,  G02B27/143

Abstract: Portable compact laser Doppler velocimeter which is easy to use and comprises a laser source (1g), a splitter consisting of an opatque objet (6), splitting the beam (1h) from the laser source (1g) into two beams (1l and 1j) focussed by a lense (4f) at the measurement location. The device of the invention is especially suitable for flow measurements of transparent fluids and for teaching applications.

Abstract translation: 便携式紧凑型激光多普勒测速仪，其易于使用并且包括激光源（1g），由opatque object（6）组成的分离器，将来自激光源（1g）的光束（1h）分成两束（11和1j ）由测量位置处的透镜（4f）聚焦。 本发明的装置特别适用于透明流体的流量测量和教学应用。