Design and Simulation of Impedance Measurement System for Biosensors
According to the requirement of the measuring impedance changes of biosensor caused by the specific binding of antibody and antigen > we designed an impedance measurement system for the biosensor which is able to work well within the range of frequency between 20Hz-100MHz. Besides of this, fast measurement, high accuracy, small size, and simple calibration are also needed. In this paper, the principle of impedance measurement and the circuit design methods were discussed, also the schematic diagrams of the system was showed. Finally the system was simulated by Multisiml0 software. The results showed that the system could meet the need to measure impedance parameters within the wide frequency band with some satisfactory accuracy. Lay a good foundation for made of the test system and for the research of impedance data processing for the biosensor.
Impedance measurement Wide frequency band Biosensor Circuit simulation
Liu Yang Wang Tao Wu Haiyun Zuo Yueming
Engineering College Shanxi Agricultural University Taigu, China Engineering College Shanxi Agricultural UniversityTaigu, China
国际会议
山东淄博
英文
170-175
2011-05-27（万方平台首次上网日期，不代表论文的发表时间）