SU1204943A1 - Arrangement for measuring volume of substance in tank - Google Patents

Arrangement for measuring volume of substance in tank Download PDF

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Publication number
SU1204943A1
SU1204943A1 SU843765058A SU3765058A SU1204943A1 SU 1204943 A1 SU1204943 A1 SU 1204943A1 SU 843765058 A SU843765058 A SU 843765058A SU 3765058 A SU3765058 A SU 3765058A SU 1204943 A1 SU1204943 A1 SU 1204943A1
Authority
SU
USSR - Soviet Union
Prior art keywords
connected
valve
substance
exciter
regulator
Prior art date
Application number
SU843765058A
Other languages
Russian (ru)
Inventor
Алексей Владимирович Бердников
Валентин Антонович Ференец
Владимир Тихонович Смирнов
Юрий Викторович Врачев
Original Assignee
Казанский Ордена Трудового Красного Знамени И Ордена Дружбы Народов Авиационный Институт Им.А.Н.Туполева
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 Казанский Ордена Трудового Красного Знамени И Ордена Дружбы Народов Авиационный Институт Им.А.Н.Туполева filed Critical Казанский Ордена Трудового Красного Знамени И Ордена Дружбы Народов Авиационный Институт Им.А.Н.Туполева
Priority to SU843765058A priority Critical patent/SU1204943A1/en
Application granted granted Critical
Publication of SU1204943A1 publication Critical patent/SU1204943A1/en

Links

Description

The invention relates to the field of measurement technology and can be used to measure the volume of liquid, bulk and gaseous substances in a container.

. The purpose of the invention is to increase the measurement accuracy by eliminating the influence of disturbing influences.

The drawing is a diagram of the device

The device contains a tank 1 filled with substance 2, a causative agent 3 gas pressure fluctuations placed in a gas cushion 4, a thermomemometric transducer consisting of a thermistor chamber 5, thermo resistors / oors 6 and 7, nozzles 8 and 9. Thermal collectors 6 and 7 are included (in the electrical measuring circuit 10 and are heated by an electric current.

In order to control the intensity of operation of the gas pressure fluctuation exciter 3, a reverse conversion circuit is inserted in the device, consisting of amplifier 11, regulator 12 and switching node 13.

The regulator 12 consists of a series-connected modulator of signals on an opto-coupler and a low-frequency amplifier with a passband of 10-50 Hz, and the control input of the modulator is connected to the output of amplifier 1.1.

The upper part of the exciter 3 is closed by a casing 14, forming an isolated chamber 15. The valve 16 contains a switching 17 and a control 18 parts. In addition, the device contains a master oscillator 19 clock generator 20, a compensation chamber 21 and an indicator 22.

The device works as follows.

When a pulse is applied from the clock generator 20 to the valve 16, the latter communicates the isolated chamber 15 with the Fel 5 thermo-anemometric conversion, isolating it from the measured volume of the gas cushion 4. The switching node 13 connects the exciter 3 directly to the output of the master oscillator 19. The gas pressure oscillations in insulated chamber 15 enters a thermo-anemometric transducer 5, where it is converted into an electrical signal that is fed to an electron

ten

15

2049432

measuring circuit 10 is memorized therein.

After the end of the pulse of the clock generator 20, the valve 16 communicates 5 the gas cushion of the measured volume 4 with the thermo-anemometric converter 5, disconnecting the isolated chamber 15 from it. The thermometric sensor 5 is fed in, and the electrical signal corresponding to the amplitude of these oscillations is fed to an electrical measuring circuit 10. In it, it is compared previously stored reference signal. 20 The generated error signal is fed to the amplifier 11, and its output, to the regulator 12, changes the intensity of the exciter 3. The control process 25 of the intensity of the exciter 3 ends when the reference and informative signals are equal, i.e. when the zero value of the error signal is reached. The driver 30 is supplied with a certain power.

When you change the volume of the gas-. The dear, caused by the change in the volume of the substance in the tank 1, the signal supplied to the electrical measuring circuit 10, changes and the generated error signal at the output of the electroisol. The measurement scheme becomes different from zero. This leads to a change in the power supplied to the exciter 3, which proceeds until the device reaches a new equilibrium state. At the same time, a new value of power is supplied to the pathogen. The change in power supplied to the exciter, proportional to the volume of the gas cushion, is displayed on the indicator 22, the scale of which is calibrated in units of volume.

Changes in external conditions, i.e. ambient temperature and barometric pressure do not affect the accuracy of the measurement, as they are equally and in phase applied to the informative and reference signals without changing the magnitude of the error signal.

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VNIIPI Order 8516/41 Circulation 702 Subscription Branch PGPP Patent, Uzhgorod, Projecto st., 4

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Claims (2)

  1. A DEVICE FOR MEASURING THE VOLUME OF A SUBSTANCE IN THE CAPACITY, containing a gas pressure fluctuating exciter installed on the vessel, a thermo-anemometric converter connected to a valve connected to the container, a compensation chamber and through a measuring circuit and an amplifier - to a regulator connected to the master generator and indicator characterized in that, in order to improve the measurement accuracy by eliminating the influence of disturbing influences, a clock generator, a switching node and an isolated EPA, which is mounted on the exciter side opposite the container and connected to the valve β Chen, wherein the clock generator of a ge- connected to the measuring circuit and the valve, and the switching node - a pathogen, a valve setpoint generator and the regulator.
    5C n „Ϊ 204943
  2. 2
    one
SU843765058A 1984-07-05 1984-07-05 Arrangement for measuring volume of substance in tank SU1204943A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU843765058A SU1204943A1 (en) 1984-07-05 1984-07-05 Arrangement for measuring volume of substance in tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU843765058A SU1204943A1 (en) 1984-07-05 1984-07-05 Arrangement for measuring volume of substance in tank

Publications (1)

Publication Number Publication Date
SU1204943A1 true SU1204943A1 (en) 1986-01-15

Family

ID=21128410

Family Applications (1)

Application Number Title Priority Date Filing Date
SU843765058A SU1204943A1 (en) 1984-07-05 1984-07-05 Arrangement for measuring volume of substance in tank

Country Status (1)

Country Link
SU (1) SU1204943A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7114384B1 (en) * 1990-11-14 2006-10-03 Hughes Aircraft Company Acoustic adiabatic liquid quantity sensor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 308301, кл. G 01 F 17/00, 09.02.70. Авторское свидетельство СССР № 587334, кл. G 01 F 17/00, 27.09,76. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7114384B1 (en) * 1990-11-14 2006-10-03 Hughes Aircraft Company Acoustic adiabatic liquid quantity sensor

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