陕西国防工业职业技术学院 西安 710300
TP212
近些年来，石英晶体为生物传感器领域的重要方向。利用石英晶体对其表面物质变化的特性，构建出具有微小质量检测能力的新型生物传感器。搭建一套硬件系统对QC输出的10 MHz的基频信号进行分析研究。通过测量与分析输出信号的频率变化规律得到结果。实验结果表明，该测量系统空气中稳定后的频率误差波动小于10 Hz，在测量结束时频率误差波动小于30 Hz。
In recent years, quartz crystal sensor has become one of the research focus in the field of biosensor. Its principle is the change characteristics between the quartz crystal and the material on its surface. Based on the principle, the piezoelectric biosensor has the feature of the grade detection capability. The paper sets up a hardware system and analyzes the fundamental frequency signal which the frequency is 10 MHz from QC. By measuring the final frequency of difference signal, the experimental results are obtained. The experimental results show that the frequency fluctuation of the measurement system is less than 10 Hz in the air condition and the frequency fluctuation is less than 30 Hz when the measurement is over.
王青.基于石英晶体传感器的凝血酶检测系统的实现[J].国外电子测量技术,2017,36(10):47-50
复制
