Research And Applications On Micro Flowmeter Survey System

The accurate diagraph of the discharge at economize on energy to decline to consume, the economy check, automatic control etc. has the extensive application. In small discharge measure, variable area flowmeter to rise count for much function.This text studies a kind of discharge that is applicable to the small discharge signal examination to measure the system, that flowmeter is according to variable area flowmeter principle, the application differential transformer type to move to spread the feeling machine principle, passing to float the title iron of the inside the son, float the son move of variety pass with each other the feeling change for the electric voltage, the thus accurate reflection is measure the current velocity of the liquid.This text goes into detail to variable area flowmeter and differential transformer , and designed the signal to adjust to manage the electric circuit, the processing comes from the weak electric voltage signal that differs to move the transformer, can make it satisfy the request of a machine to the importation signal.Designing the intelligence turns a hardware system with soft machine to combine to carried on the function to expand to the system, making the whole system not only canned aed reflection of accurate solid hour driven measured the size of the discharge, but also canned carry out the long range of the signal to deliver, turning the long range control to provide the condition for the intelligence of the system.The thesis end uses the on trial method to carried on the mark to settle to the system, and give the system index sign, and carried on the outlook to the applied foreground of the system, put forward to the further improvement of the system some conceive, these to system next move of improvement the exaltation has the certain reference value.