公开(公告)号：US5531124A

公开(公告)日：1996-07-02

申请号：US295287

申请日：1994-08-24

Applicant: Soo D. Kim ,  Hak S. Chang ,  Jong S. Paik

Inventor： Soo D. Kim ,  Hak S. Chang ,  Jong S. Paik

IPC: G01F1/66 ,  G01H3/00 ,  G01H5/00 ,  G01P5/24 ,  G01P11/00

CPC classification number: G01H3/00 ,  G01F1/662 ,  G01F1/667 ,  G01F1/668 ,  G01H5/00 ,  G01P11/00 ,  G01P5/245

Abstract: An ultrasonic flow measuring method and apparatus thereof comprises a plurality of ultrasonic vibrator apparatus mounted around the peripheral edge of a large caliber pipe at predetermined intervals, in which the ultrasonic vibrator apparatus are disposed at intervals of l=2R/(n+1) on one side radius R and at intervals of l'=R/(n+1)on the opposite side radius as well as operated in an alternating sequential arrangement in order to avoid the interference with one another, the ultrasonic vibrator apparatus are mounted on the outer wall of the pipe by being inserted into a hole of the pipe wall at a predetermined angle to the center line of the pipe, and the ultrasonic vibrator apparatus comprises a body inserted into the pipe wall; a first chamber constituted as a part of the body, for receiving an ultrasonic vibrator; and a second chamber constituted as a part of the body, for receiving a block having an acoustic resistance identical to that of the liquid flowing in the large caliber pipe to be measured, in which the ultrasonic vibrator and the block are integrated with each other, and the block is fitted into the body or supported in the body by means of a supporter, the upper surface of which is flush with the inner surface of the pipe.The ultrasonic flow measuring apparatus comprises an ultrasonic flow measuring circuit, which enables the delay time and the actual propagation distance of the ultrasonic pulses in the liquid to be precisely measured and corrected, if necessary.

Abstract translation: 一种超声波流量测量方法及其装置，包括以规定的间隔安装在大口径管的周缘周围的多个超声波振动器装置，其中超声波振动器装置以1 = 2R /（n + 1）的间隔设置在 一侧半径R，并且在相对侧半径上以1'= R /（n + 1）的间隔，并且以交替的顺序布置操作，以避免彼此的干扰，超声波振动器装置安装在 通过以与管道的中心线成预定角度插入管壁的孔中的管的外壁，并且超声波振动器装置包括插入到管壁中的主体; 构成身体的一部分的第一室，用于接收超声波振动器; 以及第二室，其构成为所述主体的一部分，用于接收具有与所述超声波振动器和所述块彼此一体化的待测量的大口径管中流动的液体的声阻相同的声阻的块， 并且该块通过支撑件装配到主体中或支撑在主体中，支撑件的上表面与管的内表面齐平。 超声波流量测量装置包括超声波流量测量电路，如果需要，能够精确地测量和校正液体中的超声波脉冲的延迟时间和实际传播距离。