The measures dirty water and the liquid flow such as clear water discharge instrument that is used on large requirements conduit is very much, but still have shortage each. In measure, some measuring because of,shed appearance movable part by sundry twine, bring about its precision to drop, because appearance interior uses cell some kind,cannot use; some even by sundry enclothe, the influence sends message normally, because some writtens guarantee dirty influence is used, the flowmeter of big conduit is too cumbersome at the same time, installation is carried very disadvantageous, and the price is high, bad news can be serious wait, in the meantime, still one part is measured shed appearance user to master not easily use and maintain a technology, popularize hard. Dalian ocean Bai Si is special the DS-CF that supervise the manufacture of of electronic limited company produces. Inserted type ultrasonic flowmeter and dispute of DS-BBF electromagnetism discharge to solve these problems very.
One, structure and principle
1, insert structure of type ultrasonic flowmeter and principle
Insert type ultrasonic flowmeter to reach a pair to insert type sensor composition by converter. Insert type sensor to be comprised by fixed position base, ball valve, sensor core.
Principle: When ultrasonic will cross a liquid, the liquid inserts time to produce little effect to passing, its pass the change that inserts time and liquid velocity of flow to become direct ratio.
T of △ of MD
Its maths expression: ─ of ─ of ─ of ─ of ─ of ─ of ─ of · of ─ of ─ of V= ─
Down of T of · of Up of T of Sin2 θ
Downstream sensor