石英晶体微天平(QCM)是一种典型的声换能器,由于其表面质量的变化而发生频率偏移。其高灵敏度,鲁棒性,小尺寸设计,和数字输出导致其在化学领域的广泛应用,物理学,生物学医学,表面科学。质量敏感性是重要的参数之一,是使用QCM进行定量分析的基础,定义,计算,和质量灵敏度的测量方法,然后重点审查电极参数的影响(包括电极形状,电极直径,电极厚度,电极材料,等。)关于QCM的质量灵敏度分布。最后,还分析了工作频率对QCM质量灵敏度的影响。
A quartz crystal microbalance (QCM) is a typical acoustic transducer that undergoes a frequency shift due to changes in the mass of its surface. Its high sensitivity, robustness, small size design, and digital output have led to its widespread development for application in the fields of chemistry, physics, biology, medicine, and surface science. Mass sensitivity is one of the vital parameters and forms the basis for quantitative analysis using QCMs. This
review firstly introduces the importance, definition, calculation, and measuring method of the mass sensitivity and then focuses on reviewing the influence of electrode parameters (including electrode shape, electrode diameter, electrode thickness, electrode material, etc.) on the mass sensitivity distribution of QCMs. Finally, the effect of the operating frequency on the mass sensitivity of QCMs is also analyzed.