Discussion of the Q Factor Concepts in Resonance System

Aiming at the state of many people are not familiar with concept of the Q factor in study and work.The paper discriminates and analyses several confusing Q factor concepts in resonance system,that is:the quality factor,the effect Q factor of the circuit,the real Q factor of the circuit,and relation between the effect Q factor of the circuit and real Q factor of the circuit.This essay plays a very important function in realizing and understanding the Q factor concepts,it also suggests that it is helpful to grasp basic concept.