Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China;
Key Laboratory of Instrumentation Science & Dynamic Measurement(North University of China), Ministry of Education, Taiyuan 030051, China;
Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China;
Key Laboratory of Instrumentation Science & Dynamic Measurement(North University of China), Ministry of Education, Taiyuan 030051, China;