Research Of Current Sensor Batch Test System

With the rapid development of high technology,the demand for sensors in various fields is getting higher and higher.Current sensor is a new type of current measuring element with high anti-interference performance,miniaturization,integration,intelligence and other characteristics,in people's life and industrial control plays a more and more important role.The sensors market of Chinese has grown rapidly in recent years and sensors has been widely used in the fields of industrial and automotive electronics,telecommunication electronics and consumer electronics products.Although the current sensor was rapidly pullulated and widely used in every area in market,because the product size,the accurate requirement of the data acquisition system,current generating system make the current sensor test efficiency very low.The main research direction of this paper is to study and search batch test system of current sensor to improve the existing backward testing method,solve the problem of low efficiency,poor stability and poor repeatability.Implementing virtual instrument technology to current sensor batch test system to improve the hardware design,software design and develop a system that automatically load exciting current,power supply,automatically switch current direction,adjust the test temperature,collect data and record in computer in order to reduce labor costs,improve the testing accuracy and repeatability,promote the improvement of current sensor test system to speed up the product development progress,reduce the participation of test engineers,reduce the workload of tests engineer and improve test efficiency and test quality.By studying and carrying out the new test system to automatically control current source,direction of current,temperature simulation system,the sequence of primary current and power supply,automatic data acquisition and recording,complete the current sensor batch testing,greatly improve the test efficiency,released manpower,solved the problem of manual records,reduced the error rate,shorten the cycle time for failure analysis and problem solving.Hope that through this paper H enterprise can find the problem in the exiting testing system and improve and optimization the current sensor batch test system for better testing management,so that improve enterprise work efficiency and cost control,help enterprise research and development new products quicker.