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2 161 782

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IPC

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Application

99104755/28, 1999-03-05

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Start date

1999-03-05

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Actual filing date

1999-03-05

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Published

2001-01-10

(72)

Inventor

Kabanov V.I.Larichev V.N.Vorona A.A.Molchanov O.V.Dmitriev V.M.Litvinenko A.N.Kargapolov V.V.Malyshev Ju.B.

(73)

Holder

Kabanov Vladimir IvanovichLarichev Vladimir NikolaevichVorona Andrej AndreevichMolchanov Oleg VladislavovichDmitriev Viktor MikhajlovichLitvinenko Anatolij NikolaevichKargapolov Viktor Vasil'EvichMalyshev Jurij Borisovich

RECIRCULATION LIQUID LEVEL GAGE Russian patent published in 2001 - IPC

Abstract RU 2161782 C2

FIELD: instrument engineering. SUBSTANCE: level gage may also be used in petroleum and chemical industries. Level gage has cylindrical casing accommodating calibration channel coupled optically to radiation source through beam splitter, turning mirror and return prism with the second photodetector which is series-connected to the second input of digital switch through the second amplified and second single-level discriminator. The first input of digital switch is series-connected to the first photodetector and its amplifier through the first discriminator of signal level. Digital switch output is connected to the second input of starting driver, the first input of which is connected to single-pulse generator and its output, to light-pulse radiator. Single-pulse generator, digital switch and frequency meter are connected to microcontroller through system busbar. Two temperature-sensitive elements positioned on level-gage casing at different height are connected to microcontroller connected to computer through connecting line. EFFECT: enhanced accuracy, sensitivity and reliability. 1 dwg

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RU 2 161 782 C2

Authors

Kabanov V.I.

Larichev V.N.

Vorona A.A.

Molchanov O.V.

Dmitriev V.M.

Litvinenko A.N.

Kargapolov V.V.

Malyshev Ju.B.

Dates

2001-01-10—Published

1999-03-05—Filed

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