SU970408A1 - Device for counting younger fish in pipe-line - Google Patents
Device for counting younger fish in pipe-line Download PDFInfo
- Publication number
- SU970408A1 SU970408A1 SU813277405A SU3277405A SU970408A1 SU 970408 A1 SU970408 A1 SU 970408A1 SU 813277405 A SU813277405 A SU 813277405A SU 3277405 A SU3277405 A SU 3277405A SU 970408 A1 SU970408 A1 SU 970408A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- fish
- pipeline
- equal
- chamber
- register
- Prior art date
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Farming Of Fish And Shellfish (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
(54) УСТРОЙСТВО ДЛЯ СЧЕТА МОЛОДИ РЫБ (54) DEVICE FOR YOUTH FISH ACCOUNT
Изобретение относитс к рыбной промыш ленностн и может быть использовано при рыборазведении дл подсчета количества рыб, проход щих по трубопроводу, например, в рыбонасосных установках.The invention relates to fish industry and can be used in fish farming to count the number of fish passing through a pipeline, for example, in fish pump installations.
Известно устройство дл подсчета молоди рыб в потоке воды, содержащее акустическую антенну, состо щую из серии преобразователей ультразвука, установленных один над другим с одной стороны потока воды, присоединенных к усилител м и счетно-логической схеме 1.A device for counting juvenile fish in a water stream is known, which comprises an acoustic antenna consisting of a series of ultrasound transducers installed one above the other on one side of the water stream, connected to amplifiers, and to a counting logic circuit 1.
Однако указанные устройства не приспособлены дл подсчета рыб в трубопроводе, поскольку стенки трубопровода, имеющие большую кривизну, рассеивают падающий на них акустический луч, и внутренн полость трубопровода, по которому перекачиваетс рыба, оказываетс непроницаемой дл акустического . луча.However, these devices are not adapted for counting fish in the pipeline, since the pipeline walls, which have a greater curvature, scatter the acoustic beam falling on them, and the internal cavity of the pipeline, through which the fish is pumped, is impermeable to acoustic radiation. ray.
Наиболее близким техническим решением к предлагаемому вл етс устройство, содер жащее трубопровод, измерительную камеру дл определени электропроводности водоВ ТРУБОПРОВОДЕThe closest technical solution to the present invention is a device containing a pipeline, a measuring chamber for determining the electrical conductivity of the water in a pipe.
рыбной смеси, встроенную в трубопровод, преобразователь ультразвука, подключенный непосредственно и через усилнтель к входам блока обработки информации, выход которого соединен с индикатором 2.fish mix embedded in the pipeline; an ultrasound transducer connected directly and through an amplifier to the inputs of the information processing unit, the output of which is connected to the indicator 2.
В этом устройстве, кроме измерительной камеры, встроенной в трубопровод, имеетс сравнительна база, наход ща с вне трубопровода . Они соед1шены по мостовой схеме, и управл ют усилителем. Напр жение с вы10 хода усилител после выпр млени подаетс на индикатор. Сравнительна база управл ет коэффициентом усилени усилител , благод ра чему колебани электропроводности воды без рыбы не вли ют на результат под15 счета.In this device, besides the measuring chamber integrated in the pipeline, there is a comparative base located outside the pipeline. They are bridged and controlled by an amplifier. The voltage from the output of the amplifier after rectification is fed to the indicator. The comparative base controls the gain of the amplifier, so that fluctuations in the conductivity of water without fish do not affect the result of the sub 15 count.
Недостатком известного устройства вл етс мала точность счета, обусловленна , , что одному и тому же значению электропро2Q водности воды соответствует различное сочетание количества и размеров молоди рыбы, . наход щейс в измерительной базе.A disadvantage of the known device is the low accuracy of the counting, due to the fact that the same value of the electro water content corresponds to a different combination of the number and size of juvenile fish,. located in the measuring base.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813277405A SU970408A1 (en) | 1981-04-10 | 1981-04-10 | Device for counting younger fish in pipe-line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813277405A SU970408A1 (en) | 1981-04-10 | 1981-04-10 | Device for counting younger fish in pipe-line |
Publications (1)
Publication Number | Publication Date |
---|---|
SU970408A1 true SU970408A1 (en) | 1982-10-30 |
Family
ID=20954013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU813277405A SU970408A1 (en) | 1981-04-10 | 1981-04-10 | Device for counting younger fish in pipe-line |
Country Status (1)
Country | Link |
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SU (1) | SU970408A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4743742A (en) * | 1985-09-03 | 1988-05-10 | Kare Espedalen | Counting device for fish, especially smolt |
US5320068A (en) * | 1992-07-28 | 1994-06-14 | Redditt R Bardin | Automatic oxygenation system for aquaculture |
-
1981
- 1981-04-10 SU SU813277405A patent/SU970408A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4743742A (en) * | 1985-09-03 | 1988-05-10 | Kare Espedalen | Counting device for fish, especially smolt |
US5320068A (en) * | 1992-07-28 | 1994-06-14 | Redditt R Bardin | Automatic oxygenation system for aquaculture |
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