SU509823A1

SU509823A1 - Ultrasound transducer

Info

Publication number: SU509823A1
Application number: SU2011102A
Authority: SU
Inventors: Василий Федорович Сазонов; Дмитрий Дмитриевич Гернет
Priority date: 1974-04-04
Filing date: 1974-04-04
Publication date: 1976-04-05

Description

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Изобретен е относитс к области иссле довани жидкостей с- помощью ультразву- ковых колебаний.The invention relates to the field of liquid research with the help of ultrasonic vibrations.

Известны ультразвуковые датчики, состо щие из корпуса и излучател -приемни4 ка ультразвука, измер ющие уровень или границу раздела двух сред, одна из которых об зательно жидка . , Дл измерени похюжени границы раздела трех жидкостей, например фракци ,БТК (беНоол- луо -кс1щол)-«исло смолка-серна кислота, в коксохимической про- Мьшленности. цзвестньгм Датчиками требу- |етс 1два датчика. С учетом специфических требований взрывозащиты увеличение чества датчиков в технологическом аппарате требует ..значительно го увеличени затрат на монтажные и эксплуатационные рагходы.Ultrasonic sensors are known, consisting of a housing and a transducer of ultrasound, measuring the level or interface of two media, one of which is necessarily liquid. , To measure the pozhuzheniye interface of three liquids, such as fraction, BTX (beN-o-lu-x-1-chol) - "is tar-sulfuric acid," in the coke-chemical industry. Known sensors require 1 two sensors. Taking into account the specific requirements of explosion protection, an increase in the number of sensors in the technological apparatus requires a significant increase in the cost of installation and operational costs.

Цель изобретени расширение диапазона измерений и получение возможности определени положени грашщ раздела трех жидких сред одним ультразвуковым .датчиком. Это достигаетс тем, что в корпусе ультразвукового датчика расположеныThe purpose of the invention is to expand the range of measurements and to make it possible to determine the position of the boundary between three liquid media with a single ultrasonic sensor. This is achieved by the fact that in the case of the ultrasonic sensor are located

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два. излучател -приемника, закреплвН1Шв в одной плоскости, и призма, две рабочие отражающие грани которой перпенддаул р ны друг другу и составл ют угол 45° OTW носительно поверхности излучени или приема излучателей-приемников.two. the emitter of the receiver, fixed in one plane, and a prism, two working reflective faces of which are perpendicular to each other and make an angle of 45 ° OTW relative to the surface of the radiation or reception of emitters-receivers.

На чертеже изображен предлагаемый датчик,сThe drawing shows the proposed sensor, with

Ультразвуковой датчик состоит из приэ- мы 1 с регулрфовочными винтами 2, кор пуса 3 с крышкой 4, в котором укреплены излучатели-приемники 5 во втулке 6, Дл акустического контакта между дном . корпуса и излучател ми-приемниками залито трансформа торщте масло 7,The ultrasonic sensor consists of an actuator 1 with adjustment screws 2, a core 3 with a cover 4, in which emitters-receivers 5 are fixed in the sleeve 6, For acoustic contact between the bottom. the hull and the emitter e-receivers filled with a transformation Torsche oil 7

Устройство работает следующим обра.зом ,,,. The device works as follows ,,,.

Claims

The sensor is located in a liquid medium C and measures the position of the section of the media XG / and ff-jTl. The emitters-receivers 5 are excited by a high-frequency shock pulse of short duration. - As a result, in the medium C there are elastic oscillations of the ultrasonic tube. These times extend to the working faces of the prism, which are angle 4 with respect to the radiation surface of the warmth lamp, are reflected from them and extend to the boundaries of the medium D-g | and YH. Reflected from these boundaries, the waves, reaching. again, the faces of the prism, reflect off of them and are received by the respective radiator receivers. After a time between the moment of the direct probe pulse and its reception, after a threefold reflection, it converts the voltage in the electronic device proportional to the measured distance. The sensor is adjusted to the maximum of the reflected signal using the BINT

2. The use of the device in the coke-chemical industry when measuring the position of the interfaces between three media, for example, BTK fraction - acid tar-sulfuric acid, improves the technological regime of purification and separation of the fraction VTK and benzene production, eliminates manual labor when measuring levels of benzene products creates conditions for the automation of specified processes. The invention is an ultrasonic sensor, a body with an emitter-receiver, O TV. each other and are located at an angle of 45 ° relative to the surface of radiation or reception of emitters-receivers.