SU699330A1 - Eddy-current acoustic rate-of-flow meter - Google Patents

Eddy-current acoustic rate-of-flow meter

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Publication number
SU699330A1
SU699330A1 SU772531511A SU2531511A SU699330A1 SU 699330 A1 SU699330 A1 SU 699330A1 SU 772531511 A SU772531511 A SU 772531511A SU 2531511 A SU2531511 A SU 2531511A SU 699330 A1 SU699330 A1 SU 699330A1
Authority
SU
USSR - Soviet Union
Prior art keywords
flow meter
eddy
current acoustic
flow
rate
Prior art date
Application number
SU772531511A
Other languages
Russian (ru)
Inventor
Александр Леонидович Лукс
Original Assignee
Куйбышевский государственный университет
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Куйбышевский государственный университет filed Critical Куйбышевский государственный университет
Priority to SU772531511A priority Critical patent/SU699330A1/en
Application granted granted Critical
Publication of SU699330A1 publication Critical patent/SU699330A1/en

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Description

Изобретение относитс  к области приборостроени  и может быть использовано дл  определени  суммарного и мгновенного расхода жидкости и газа при газодинамических и гидравлических испытани х. Известны вихревые акустические ра ходомеры flj и 2j,составл ющие из по мещаемых в поток элементов, которые завихр ют поток, и электроакустического преобразовател , воспринимающего возникающие звуковые колебани . Недостатком указанных измерителей  вл ютс  большие гидравлические и аэродинамические потери при протекании жидкости через расходомер, а так же наличие погрешностей измерени , обусловленных быстрым рассе нием зву ковой энергии-. Наиболее близким к изобретению по технической сущности  вл етс  вихревой акустический расходомер 3, состо щий из поглащаемого в поток преп тстви , электроакустического преобразовател , подк.гпоченного к частотомеру , причем преп тствие выполнено в виде барабана, в котором в диаметральном направлении расположены два р да отверстий, смещенных относитель но друг друга по оси барабана на пол шага, а в азимутальном направлении один р д повернут относительно другого на некоторый угол. Недостатком расходомера  вл етс  наличие погрешностей измерени , вызванных тем, что данна  конструкци  не обеспечивает концентрацию потока звуковой энергии в малом объеме в направлении электроакустического преобразовател . Целью изобретени   вл етс  повышение точности измерени . Указанна  цель достигаетс  тем, что в предлагаемом расходомере преп тствие выполнено в виде тела вращени , расположенного внутри цилиндрической гильзы с зазором дл  протекани  потока и состо щего из переднего конуса, двух промежуточных цилиндров и заднего конуса на цилиндрической поверхности тела вращени  расположены три р да акустических резонаторов в форме тороидальных полостей , сообщаемых с потоком регулируемыми с помощью резьбы кольцевыми щел ми, а электроакустический преобразователь вмонтирован в цилиндрическую гильзу над задним конусом тела вращени .The invention relates to the field of instrumentation and can be used to determine the total and instantaneous flow of liquid and gas during gas dynamic and hydraulic tests. Vortex acoustic oscillators flj and 2j are known, which are constituted of elements being swapped in a flow that swirl the flow, and an electroacoustic transducer that perceives the arising sound oscillations. The disadvantage of these meters is the large hydraulic and aerodynamic losses during the flow of fluid through the flow meter, as well as the presence of measurement errors due to the rapid dissipation of sound energy. The closest to the invention to the technical essence is a vortex acoustic flow meter 3 consisting of an obstacle absorbed in the flow electroacoustic transducer connected to a frequency meter, and the obstacle is made in the form of a drum in which two rows of holes are located in the diametrical direction , offset relative to each other along the axis of the drum by half the pitch, and in the azimuthal direction one row is turned relative to the other by some angle. The disadvantage of the flow meter is the presence of measurement errors due to the fact that this design does not ensure the concentration of sound energy flow in a small volume in the direction of the electroacoustic transducer. The aim of the invention is to improve the measurement accuracy. This goal is achieved by the fact that, in the proposed flow meter, the obstacle is made in the form of a rotating body located inside a cylindrical sleeve with a gap for flow and consisting of a front cone, two intermediate cylinders and a rear cone on the cylindrical surface of the body of rotation are three rows of acoustic resonators in the form of toroidal cavities, communicated with a thread, annular slits adjustable by means of a thread, and an electroacoustic converter is mounted in a cylindrical sleeve hell with the rear cone of the body of rotation.

SU772531511A 1977-10-11 1977-10-11 Eddy-current acoustic rate-of-flow meter SU699330A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772531511A SU699330A1 (en) 1977-10-11 1977-10-11 Eddy-current acoustic rate-of-flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772531511A SU699330A1 (en) 1977-10-11 1977-10-11 Eddy-current acoustic rate-of-flow meter

Publications (1)

Publication Number Publication Date
SU699330A1 true SU699330A1 (en) 1979-11-25

Family

ID=20727955

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772531511A SU699330A1 (en) 1977-10-11 1977-10-11 Eddy-current acoustic rate-of-flow meter

Country Status (1)

Country Link
SU (1) SU699330A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496876A1 (en) * 1980-12-18 1982-06-25 Schlumberger Prospection ROTATING FLOW METER USED IN PARTICULAR IN A HYDROCARBON PRODUCING WELL

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496876A1 (en) * 1980-12-18 1982-06-25 Schlumberger Prospection ROTATING FLOW METER USED IN PARTICULAR IN A HYDROCARBON PRODUCING WELL
EP0055169A2 (en) * 1980-12-18 1982-06-30 Societe De Prospection Electrique Schlumberger Device for the measurement of the liquid flow in a borehole

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