Application of Direct Current(DC) Motor Driven Circuit

The JLS series small diameter layering flow-hydrated test meter(flowmeter for short) requires the control method of through-tubing metal-basket driven circuit changes as the actual test methods changes or uses in combination with different production well-testing instrument.This thesis,therefore,introduces the principle,features and on-site applications of 5 different motor driven control circuits,which basically employs the turning reverse turning feature of voltage grade control DC motor and innovatively takes the advantage of its non-touch switch in turning and steady temperture of the separate devices in the circuit.The motor driven circuit,as the key flowmeter technque,can meet the requirement of different production well-testing instrument in the ring tubing.In this way,the improved circuit enjoys more extensive applicationand higher efficiency of the fowmeter and other instruments working in the wells.