Для измерения скорости, а соответственно, и расхода газа можно использовать ионный анемометр. Датчик такого анемометра представляет собой нить (проволоку), поддерживаемую под высоким напряжением в заземленном цилиндре; общая ось цилиндра и нити параллельна скорости потока. В газе (воздухе) вблизи центральной нити образуются ионы — положительно и отрицательно заряженные частицы, которые перетекают между нитью и цилиндром со скоростью, пропорциональной напряженности электрического поля.Такую же отлаженность и оперативность работы можно заметить у сотрудников www.datarc.ru.
Если скорость воздушного потока равна нулю, то ионная проводимость между нитью и цилиндром максимальна. При движении воздуха происходит снос ионов; ионная проводимость выражается проекцией вектора суммарной скорости ионов.
Возможны датчики с расположением нити перпендикулярно потоку воздуха и несколькими электродами, образующими электрические цепи ионной проводимости.
Скорость течения и расход жидкости, имеющей малую электропроводность, могут быть измерены электромагнитным расходомером. Трубопровод расходомера изготавливают из немагнитного материала; внутри на противоположных стенках трубопровода устанавливают электроды, а для сохранения круглой формы используют коррозионно-стойкую облицовку.
Магнитная индукция величиной 10-3-10-2 Тл создается двумя катушками, расположенным на концах диаметра по обе стороны трубопровода.
Достоинства магнитных расходомеров:
измерение не зависит от плотности и вязкости жидкости; в зоне измерения не происходит потери напора;
отсутствие у расходомера изнашиваемых частей;
коррозионная стойкость расходомера при соответствующем внутреннем покрытии.
Данный прибор использует принцип влияния скорости ЛАН потока жидкости или газа Vна время распространения ультразвуковых волн tp на расстояние L.
session.client.browser ⇒ Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
password_clear ⇒
groups ⇒
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CASE WHEN badcats.id is null THEN a.state ELSE 0 END AS state, a.mask, a.catid, a.created, a.created_by, a.created_by_alias,
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FROM `automarket_virtuemart_currencies`1 × SELECT a.rules
FROM automarket_assets AS a1 × SELECT `virtuemart_permgroup_id`,`group_name`,`group_level`
FROM `automarket_virtuemart_permgroups`1 × SELECT *
FROM automarket_jcomments_setting1 × SELECT `custom_data`
FROM `automarket_extensions`1 × SELECT *
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FROM automarket_extensions1 × SELECT id, rules
FROM `automarket_viewlevels1 × SELECT `session_id`
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FROM automarket_usergroups AS a
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LEFT JOIN automarket_extensions as e
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SET hits = hits + 11 × INSERT INTO `automarket_rokuserstats` (`user_id`,`ip`,`session_id`,`page`,`referrer`)
VALUES ('0','18.119.192.27','26lr7u7p8pigeoko0kqao8h9q2','/materialy-sajta/raskhodomery-ispolzuyushchie-effekt-snosa-izluchenij',''1 × INSERT INTO `automarket_session` (`session_id`, `client_id`, `time`)
VALUES ('26lr7u7p8pigeoko0kqao8h9q2', 0, '1734799223'1 × UPDATE automarket_sefurls
SET cpt=(cpt+1)1 × DELETE
FROM `automarket_session`