The result of the theoretical calculation and finite element emulation showed that nanogram of tnt or rdx could be detected with the modified cantilever 基于该种改进型悬臂梁，通过爆炸物爆炸的冲击力作用，将能够更为有效的提高爆炸物的检测精度和选择性。
2.
Recent years , the using of piezoelectric sensors becomes a focus in novel biosensors research . the basic principle is that the characters of its oscillation are highly responded with the changes of the surface mass adsorption , or the physic characters in the reaction system including density , viscosity , conductivity and so on . a piezoelectric biosensor with a nanogram sensitivity could be constructed through a reasonable biological processing and structure designing to the piezoelectric quartz crystal 近年来,压电传感器检测技术逐渐成为生物分析中的研究热点,其基本原理是利用石英晶体振荡特性对石英晶体表面质量负载(质量效应)和反应体系物理性状如密度、粘度、电导率(非质量效应)等的改变具有高度敏感的特性,通过对石英晶体进行适当的生物学处理和结构设计,构建出具有具有ng级检测能力的生物传感器。
3.
The piezoelectric quartz crystal impedance analysis is a new method to study the quartz crystal resonance . it has been well established as a powerful tool capable of responding in situ to an electrode mass change down to the nanogram level and the change of the solution viscosity and density , and it is also expected to find wider applications in chemistry , life science , surface science , food science , environment monitoring and so on 压电石英晶体阻抗分析法是研究石英晶体谐振的新技术，可获取多维压电信息，从而现场动态监测电极表面低至纳克级的质量及溶液粘密度等响应，可广泛应用于化学、生命科学、表面科学、食品科学、环境检测等领域。
