In order to achieve the goal of high efficient inspection of oxygen sensor in production line

a kind of inspecting system for oxygen sensor is designed based on LabVIEW program system.The system detects a group of oxygen sensors via exhaust gaseous produced by engine which is controlled by ECU with preset running cycle process of changing air-fuel ratio.LabVIEW acquires ECU air-fuel ratio change rule and output signal of oxygen sensors at the same time

and these datas are processed simultaneously.With all the necessary performance parameters of the oxygen sensors are detected

the process of detecting will terminated by LabVIEW automatically.According to the criteria which can be calibrated set up by user

the software will present evaluation results of each oxygen sensor directly.Experimental results show that this system can inspect all the performance parameters accurately and rapidly

including the light-on time

thin and dense signal and response rate

etc.