公开(公告)号：WO1990009597A1

公开(公告)日：1990-08-23

申请号：PCT/AU1990000064

申请日：1990-02-19

Applicant: BUCZKOWSKI, Janusz, Kazimierz ,  BUCZKOWSKA, Joanne, Astrid

IPC: G01P05/00

CPC classification number: G01P5/00 ,  G01D7/12 ,  G01P1/08 ,  G01P5/07

Abstract: An air speed measuring device includes an air speed sensor (110) and signal processing electronics (111) to measure air speed under control of a microprocessor (116) and a speech circuit (112) to provide an annunciation signal which is amplified by amplifier (114) and provided to the user through earphones (115). The annunciation signal from the speech circuit (112) is arranged to provide the user with a verbal indication of his instantaneous speed at regular intervals.

Abstract translation: 空气速度测量装置包括空气速度传感器（110）和信号处理电子器件（111），用于在微处理器（116）和语音电路（112）的控制下测量空气速度，以提供放大器放大的通告信号（ 114），并通过耳机（115）提供给用户。 来自语音电路（112）的通告信号被布置成以规则的间隔向用户提供他的瞬时速度的语言指示。

公开(公告)号：WO1997041446A1

公开(公告)日：1997-11-06

申请号：PCT/RU1997000122

申请日：1997-04-23

Applicant: DEREVYAGIN, Alexandr Mikhailovich

IPC: G01P05/00

CPC classification number: G01F15/12 ,  G01P5/00

Abstract: The present invention relates to the field of control and measuring technology. In order to prevent its fouling, the flow velocity measuring unit is fitted with a gravitational filter which consists of pipes having a length at least three times greater than their diameter.

Abstract translation: 本发明涉及控制和测量技术领域。 为了防止其结垢，流速测量单元配有重力过滤器，该重力过滤器由长度为其直径的至少三倍的管道组成。

公开(公告)号：WO1995002827A1

公开(公告)日：1995-01-26

申请号：PCT/US1993006736

申请日：1993-07-16

Applicant: I-STAT CORPORATION ,  ZELIN, Michael, P.

Inventor： I-STAT CORPORATION

IPC: G01P05/00

CPC classification number: G01P21/025

Abstract: A method for automatic fluid flow compensation in disposable fluid analysis sensing devices (10) is disclosed. The method is designed to keep the test conditions from sample to sample substantially unchanged. This is accomplished by using information about the preceding and/or current test measurements to automatically offset parameter variations of the disposable devices (10) and the reading apparatus (150) caused by manufacturing tolerances, wear of the mechanical parts, fluid viscosity differences and other. At each consecutive test measurement the method uses a compensation of the position of the actuating element (100) to offset the difference between the previous test measurement and a factory pre-specified value. The method and system result, over the lifetime of the instrument (300) in a substantially unchanged flow of the analyzed fluid and reduction of the influence of a variety of external factors on the test measurements.

Abstract translation: 公开了一次性流体分析检测装置（10）中的自动流体流量补偿的方法。 该方法旨在将样品的测试条件保持不变。 这是通过使用关于先前和/或当前测试测量的信息来实现的，以自动偏移由制造公差，机械部件的磨损，流体粘度差异等引起的一次性装置（10）和读取装置（150）的参数变化 。 在每次连续的测试测量中，该方法使用对致动元件（100）的位置的补偿来抵消先前测试测量值与出厂预设值之间的差异。 该方法和系统结果在仪器（300）的寿命内基本上不变的分析流体的流动以及各种外部因素对测试测量的影响的减少。

公开(公告)号：WO1990005310A2

公开(公告)日：1990-05-17

申请号：PCT/GB1989001336

申请日：1989-11-10

Applicant: PUBLIC HEALTH LABORATORY SERVICE BOARD ,  CARR, Robert, Jeffry, Geddes ,  CLARKE, David, John ,  AL-SHUKRI, Sumaia

Inventor： PUBLIC HEALTH LABORATORY SERVICE BOARD

IPC: G01P05/00

CPC classification number: G01P5/26 ,  G01N15/0205 ,  G01N2015/145

Abstract: Particle velocity is determined optically through the use of crossed interference fringe patterns. The fringe patterns are produced by passing laser beams of distinct wavelength along a common optical fibre (30) and through two crossed diffraction gratings (34, 36) which are bonded to the free end of the fibre (30). Each diffraction grating (34, 36) is constructed in the manner of an interference filter so as to produce interference fringes at one wavelength but to transmit the other wavelength substantially uniformly across the grating. Other interference elements can be used in place of diffraction gratings and the use of a single diffraction grating is envisaged in certain circumstances. An indication of the sense of particle movement can be achieved by creating a fringe pattern of steadily increasing fringe spacing.

公开(公告)号：WO1985005454A1

公开(公告)日：1985-12-05

申请号：PCT/FR1985000126

申请日：1985-05-22

Applicant: INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE ... ,  CATHIGNOL, Dominique ,  CHAPELON, Jean-Yves

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

IPC: G01P05/00

CPC classification number: A61B8/06 ,  G01P5/242

Abstract: Method for measuring flow speeds of a flux. The apparatus comprises: a) n emitter and receiver transducers (3 and 7) with wide pass-band, b) m oscillators (4) producing sinusoidal continuous voltages of different frequencies which are applied simultaneously each to an emitter transducer, c) a low pass-filter (16) arranged on each treatment path between the multiplier and the high-pass filter. Application to displaying by Doppler velocimetry the blood speed in a vessel segment.

公开(公告)号：WO1983002329A1

公开(公告)日：1983-07-07

申请号：PCT/DK1981000120

申请日：1981-12-28

Applicant: DISA ELEKTRONIK A/S (DANSK INDUSTRI SYNDIKAT A/S) ,  KNUHTSEN, John ,  OLLDAG, Peder, Emil, Schack

Inventor： DISA ELEKTRONIK A/S (DANSK INDUSTRI SYNDIKAT A/S)

IPC: G01P05/00

CPC classification number: G01P5/26

Abstract: In a laser-doppler-anemometer two frequency-displaced partial beams are transmitted from a transmitting device (S) including a laser (1) to a measuring probe (M) positioned at a remote measuring volume (10) by means of a polarization-direction-preserving optical "single-mode" fiber (8) with two orthogonal principal axes, the transmitter including a member (4) for turning the polarization direction of one partial beam by 90 , and the measuring probe (M) including another polarization-direction-turning member (4') for reestablishing the original coincidence between the polarization directions of the two partial beams. The transmitting device (S) may thus be positioned at a distance from the measuring volume (10) while the measuring probe (M) may be designed with small physical dimensions.

Abstract translation: 在激光多普勒风速计中，两个频率偏移的部分波束通过偏振波分量从包括激光（1）的发送装置（S）到定位在远程测量体积（10）的测量探针（M） 具有两个正交主轴的方向保持光学“单模”光纤（8），所述发射器包括用于将一个部分光束的偏振方向转动90°的部件（4），并且所述测量探针（M）包括 另一个用于重建两个部分光束的偏振方向之间的原始一致的偏振方向转动部件（4'）。 因此，发射装置（S）可以位于与测量体积（10）一定距离处，而测量探针（M）可以被设计成具有小的物理尺寸。

公开(公告)号：EP0152916A3

公开(公告)日：1988-09-21

申请号：EP85101601

申请日：1985-02-14

Applicant: Bundesrepublik Deutschland, vertreten durch den Bundesminister für Wirtschaft, dieser vertreten durch den Präsidenten

Inventor： Dopheide, Dietrich, Dr.

IPC: G01P05/00

CPC classification number: G01P5/26 ,  G01S17/58

公开(公告)号：EP0100094A3

公开(公告)日：1986-02-05

申请号：EP83107339

申请日：1983-07-26

Applicant: Aloka Co. Ltd.

Inventor： Namekawa, Koroku

IPC: A61B08/06 ,  G01P05/00 ,  G01S07/62

CPC classification number: G01S15/8979 ,  A61B8/06 ,  G01N29/0609 ,  G01S7/52071

Abstract: An ultrasonic blood flow imaging method for two-dimensionally displaying the velocity distribution of a blood flow within a body to be examined is characterized in that the velocity distribution is displayed as a color picture in which the velocity direction is represented by one color when positive and by another different color when negative, and the magnitude of the velocity is represented by varying the brightness of the color concerned. An ultrasonic imaging apparatus for carrying out this method comprises an ultrasonic transmitter/receiver which outputs a tomographic image signal corresponding to a specific region of an object, and an average velocity signal and a velocity deviation signal corresponding to the velocity of blood flow within the specified region. These signals are stored in respective frame memories and then processed by a color processor to produce a color video signal which is input to a color display for displaying a tomographic image, and the velocity and velocity deviation of the blood flow.

公开(公告)号：EP0056311A3

公开(公告)日：1983-07-06

申请号：EP82300088

申请日：1982-01-08

Applicant: PLANT ENERGY SYSTEMS LIMITED

Inventor： Morris, Stephen John ,  Cooper, Stephen David

IPC: G01F01/20 ,  G01P05/00 ,  G01P13/00

CPC classification number: G01F1/20

Abstract: A flow detector, for use adjacent a steam trap to detect an unacceptable level of leakage of steam through the trap, comprises a tubular housing 10 substitutable for a standard pipe nipple. The housing comprises a boss 16 which provides a condensate collecting trap 24 in which an electrode 26 is exposed. Immediately opposite the trap 24, on the opposite side of a flow passage 28 provided by the housing 10, is a baffle in the form of a ramp 30 arranged to divert steam towards the trap 24. In normal conditions of use, the presence of condensate in the trap is signalled by an electric current passing between the electrode 26 and the housing 10. Should an excessive steam flow occur in the passage 28, steam diverted by the ramp 30 displaces the condensate from the trap 24 around the electrode 26 and stops the flow of current. A similar detector could be of use in a compressed air line.

公开(公告)号：EP0033977A3

公开(公告)日：1983-07-06

申请号：EP81100927

申请日：1981-02-10

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Iinuma, Kazuhiro ,  Seo, Yasutsugu ,  Sato, Shigeru

IPC: A61B10/00 ,  G01S07/62 ,  G01F01/66 ,  G01P05/00

CPC classification number: G01S15/8979 ,  A61B8/06 ,  A61B8/13 ,  G01F1/663 ,  G01N2291/02836 ,  G01S7/52073

Abstract: An ultrasonic blood flow measuring apparatus comprising:
an ultrasonic probe (11) for transmitting an ultrasonic beam into a tissue under examination in response to an electrical driving pulse and for receiving an ultrasonic echo reflected from the tissue to convert the same into an electrical signal; a pulse generator arragement (15-1, 15-2, ... 15-n) for generating the electrical driving pulse of said probe (11); a detector circuit (20) for detecting a tomogram signal from the electrical signal; a Doppler signal processing circuit (24) for extracting Doppler frequency shift components due to velocity of a blood flow in the tissue from the electrical signal; a marker signal generator (34) for generating marker signals indicative of a location where velocity of the blood flow is measured and a direction of the ultrasonic beam which contains the Doppler frequency shift components; an arithmetic circuit (35) for calculating an angle 0 defined between a direction of the blood flow and the direction of the ultrasonic beam which contains the Doppler frequency shift components; a divider circuit (31) for obtaining the velocity of the blood flow in accordance with the Doppler frequency shift components and the angle 8; and a display device (22) for displaying a tomogram of the tissue and markers in response to the tomogram signal and the marker signals, respectively.