公开(公告)号：EP0277877A3

公开(公告)日：1988-08-31

申请号：EP88400211

申请日：1988-01-29

Applicant: OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES(O.N.E.R.A.)

Inventor： Boutier, Alain ,  Lefevre, Jean

IPC: G01P05/20 ,  G01P05/00

CPC classification number: G01P5/20 ,  G01P5/26

公开(公告)号：EP0124898A3

公开(公告)日：1987-05-20

申请号：EP84105069

申请日：1984-05-04

Applicant: Erwin Sick GmbH Optik-Elektronik

Inventor： Lauer, Reinhard, Dipl.-Ing. ,  Hartmann, Werner

IPC: G01P05/00

CPC classification number: G01P5/245

Abstract: Eine Vorrichtung zur Laufzeitbestimmung von Ultraschal limpulsen in einem Fluid weist zwei im Abstand voneinander angeordnete elektroakustische Wandler (11, 20) auf. Das dem Schalldruck proportionale Sendesignal ist über ein regelbares Verzögerungsglied (23) an eine Multiplikationsschaltung (25) angelegt, der auch das Empfangssignal zugeführt ist. Das Produktsignal seinerseits ist einer Laufzeitdetektorschaltung (10) zugeführt.

公开(公告)号：EP0035325A3

公开(公告)日：1981-09-23

申请号：EP81300471

申请日：1981-02-04

Applicant: NATIONAL RESEARCH DEVELOPMENT CORPORATION

Inventor： Sainz, Antonio Jose ,  Roberts, Victor Colin

IPC: A61B10/00 ,  A61B05/10 ,  G01P05/00

CPC classification number: A61B8/06 ,  G01F1/663

Abstract: The invention is particularly related to the measurement of the area of a blood vessel and the volume flow rate of blood in such vessels. An ultrasonic Doppler velocimeter (10, 12, 14 and 26) which derives a number of velocity signals dependent on the number of different velocities in a duct is coupled by way of a limiter 15 to a frequency-to-voltage converter 16 which therefore has an output with one component for each velocity signal. A further frequency-to-voltage converter 21 provides a signal dependent on the number of velocity signals and since this number depends on the duct area, the output from the converter 21 is a measure of this area. By using another frequency-to-voltage converter 23 and a mean detector 24, a mean velocity signal is obtained which when multiplied by the area signal generates volume flow rate.

公开(公告)号：EP0278531A3

公开(公告)日：1988-10-26

申请号：EP88102530

申请日：1982-09-16

Applicant: FORD MOTOR COMPANY LIMITED ,  FORD FRANCE SOCIETE ANONYME ,  FORD-WERKE AKTIENGESELLSCHAFT

Inventor： Joy, Robert Dean

IPC: G01F01/32 ,  G01P05/00

CPC classification number: G01F1/3218 ,  G01F1/3209 ,  G01P21/025

Abstract: An air flow meter (30) has an air flow channel (32) with a vortex generator or strut (33). The cross sectional area of the air flow adjacent the vortex generator is varied to change the flow velocity and hence to change the vortex frequency. The generator means includes an movable elongated plate member having an axis of elongation parallel to the direction of airflow and the airflow channel has a cross sectional area of different magnitudes along the direction parallel to the airflow. The plate member is longitudinally movable to different cross sectional magnitudes in the channel.

公开(公告)号：EP0124897A3

公开(公告)日：1987-05-27

申请号：EP84105068

申请日：1984-05-04

Applicant: Erwin Sick GmbH Optik-Elektronik

Inventor： Lauer, Reinhard, Dipl.-Ing. ,  Hartmann, Werner

IPC: G01P05/00

CPC classification number: G01P5/245 ,  G01N2291/02836

公开(公告)号：WO1996007106A2

公开(公告)日：1996-03-07

申请号：PCT/US1995010968

申请日：1995-08-30

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  SLABINSKI, Robert, J. ,  FILIPKOWSKI, Richard, C.

IPC: G01P05/00

CPC classification number: G01P13/02 ,  G01P5/14

Abstract: Static pressure sensing and free airstream temperature sensing is obviated in a method for determining aircraft velocity relative to an airmass by utilizing a static pressure and temperature component present in pressure variations sensed by a total pressure sensor located on a rotating arm mounted on the fuselage of an aircraft. A harmonic analysis of a quasi-sinusoidal total pressure variation includes a determination of steady state and both first and second harmonic components. These harmonic components are used to determine the static pressure, the free airstream temperature and the aircraft airspeed without separately sensing these parameters.

Abstract translation: 在通过利用位于安装在机身上的旋转臂上的总压力传感器感测到的压力变化中存在的静态压力和温度分量来确定相对于空气质量的飞行器速度的方法中，静止压力感测和自由气流温度感测被消除 飞机。 准正弦总压力变化的谐波分析包括稳态和第一和第二谐波分量的确定。 这些谐波分量用于确定静态压力，自由气流温度和飞机空速，而无需分别感测这些参数。

公开(公告)号：WO1995001572A1

公开(公告)日：1995-01-12

申请号：PCT/DE1994000653

申请日：1994-06-09

Applicant: RUCK, Bodo ,  KAISER, Andreas

IPC: G01P05/00

CPC classification number: G01P5/001 ,  G01P13/045

Abstract: The invention relates to a process for directly determining the direction of recorded tracks of moving objects when picking up images on an image detector. The detected object tracks are given graphic data in arrow or vector form in real time. The objects may be illuminated or self-illuminated bodies of differing size. They may include illuminated elementary particles like molecules or others which, for example, are carried along by a flow and also larger illuminated moving objects represented on an image detector as a track. The prerequisite for the process is thus that the objects display tracks on the detector element during the illumination or integration time of the image detector. Characteristically in the process, the detected object tracks are given graphic directional information in arrow or vector form during the picking up of images either by the change in the light intensity impinging on the image detector or by the change in the sensitivity of the image detector.

Abstract translation: 本发明涉及一种用于确定所记录的磁道直接移动的物体的图像检测器上记录时的方向。 在箭头或矢量形式实时地图形信息得到的所检测的对象的轨道。 的对象可以被点亮或selbsleuchtende不同尺寸的机构。 可想到的被照亮的微粒如分子或颗粒，例如 mitverfrachtet是在流动，但也较大照亮移动物体，其被映射到的图像检测器作为痕量。 要求的方法因此，该对象是在图像检测器的曝光或积分时间检测器元件上可分辨的轨道。 它是要么通过改变照射到所述图像检测器的光功率或通过记录期间与在方向箭头或矢量形式的图形信息改变图像检测器的灵敏度提供的检测到的对象轨迹的方法的特征。

公开(公告)号：EP0092841A3

公开(公告)日：1985-08-21

申请号：EP83104067

申请日：1983-04-26

Applicant: Aloka Co. Ltd.

Inventor： Namekawa, Koroku ,  Koyano, Akira ,  Kasai, Chihiro

IPC: G01S15/89 ,  G01S15/58 ,  G01P05/00

CPC classification number: G01S15/8988 ,  A61B8/06 ,  G01P5/244 ,  G01S15/582 ,  G01S15/8977 ,  G01S15/8979

Abstract: An ultrasonic diagnostic apparatus for accurately displaying the velocity distribution of moving members within a living organism. The apparatus constitutes an improvement on the ultrasonic diagnostic apparatus of the type wherein an ultrasonic pulse beam is repeatedly transmitted into the living organism at a fixed pulse rate and the reflected echoes are picked up, amplified and displayed, wherein the improvement comprises a complex signal converter for converting a received high frequency signal into complex signals by mixing the received high frequency signal with a pair of complex reference signals which have frequencies that are integer multiples of the pulse rate and which are complexly related to one another, an autocorrelator for determining the autocorrelation of the complex signals, the autocorrelator having a delay time equal to an integer multiple of the pulse period, and a velocity determination circuit for determining the velocity through said autocorrelation. The apparatus is capable of measuring the velocity distribution of moving members within the organism and of rapidly displaying the measured results in real time.

Abstract translation: 一种用于精确显示活体内移动部件的速度分布的超声波诊断装置。 该装置构成了超声波诊断装置的一种改进，其中超声波脉冲束以固定的脉冲频率重复地传送到活体内，并且反射回波被拾取，放大并显示，其中改进包括复数信号转换器 用于通过将接收的高频信号与一对频率为脉冲率的整数倍并且彼此复杂相关的复合参考信号进行混频，将接收到的高频信号转换成复信号;自相关器，用于确定自相关 自相关器的延迟时间等于脉冲周期的整数倍;以及速度确定电路，用于确定通过所述自相关的速度。 该设备能够测量生物体内运动构件的速度分布并能够实时快速显示测量结果。

公开(公告)号：EP0137338A3

公开(公告)日：1985-06-05

申请号：EP84110887

申请日：1984-09-12

Applicant: Siemens Aktiengesellschaft

Inventor： Stark, Reinhard, Dipl.-Ing. (FH)

IPC: G01P05/00

CPC classification number: H03K21/00 ,  G01P5/247

公开(公告)号：EP0031102A3

公开(公告)日：1983-06-22

申请号：EP80107865

申请日：1980-12-12

Applicant: EBARA CORPORATION

Inventor： Yasuda, Yoshichiro ,  Satoh, Seio

IPC: G01F01/66 ,  G01P05/00

CPC classification number: G01F1/663 ,  G01F1/66

Abstract: An inexpensive flow meter with a special arrangement of a minimum of transducers always provides an accurate measure of flow of the fluid in a conduit irrespective of the condition of the fluid. Mode control switching circuitry including fluid condition detecting means selectively energizes one or two transmitters in the transducers each of which then feeds a beam of ultrasonic waves to the fluid. Receiver means in the transducers selectively receives both the transmission (transit) mode waves and the reflection (Doppler-shifted) mode waves in accordance with the current condition of the fluid. In one embodiment, the beam of ultrasonic waves uses a single path of travel extending from a transmitter and a receiver while in another embodiment, it uses dual parallel paths extending from two transducers and two receivers.