毕业论文摘要翻译

Drill rod collar position detector set hardware circuit design

In the petroleum drilling process, the ejection controller played the seal well head role.When drill rod collar through ejection controller, the ejection controller must open lets the drill rod collar pass the past tense.Therefore time drill rod collar nearness ejection controller, reports to the police the prompt is very important, otherwise can have the blow out hazard.

This article uses magnetism examination the method, to drill rod collar whether arrives conducts the research.Take the Hall effect as the foundation, has studied the magnet and the ferromagnetic component is away from and the magnetic field strength relations, discovered in 0-150mm, the distance change all will cause in the air the magnetic induction intensity change, in which 0-80mm changes the quantity quite to be obvious, in 40mm, basically will in particular assume the index relations change.Designed the corresponding examination probe head according to these change relations.Will use the Hall integrated circuit to arrive the signal to transform as magnetism signal, again magnetism signal to voltage signal transformation.

After the voltage signal process insults the positive SPCE061A monolithic integrated circuit, the MCP42010 digital potentiometer and the periphery electric circuit analysis, processing and the comparison finally realizes the drill rod collar arriving examination.

This article uses the localization method simple, Yi Xing, uses the component few, the examination sensitivity to be high, not only is suitable for the petroleum drilling profession, also is suitable for other need pinpointing system.

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