以石英晶体振荡中的石英晶片作为传感头,检测待测物对它的作用,已为人们所广泛探讨和使用,如微量天平、称差等,因而毋庸细述.但各自设计电路有所不同,我们研制了广谱分析仪,不同频率的石英晶片都可使用,其电路见图1,振荡电路采用74LS04集成块,取其适用频率范围广、简单、易起振、稳定等特点.时基电路由一块10MHz的石 Quartz crystal quartz crystal oscillator as the sensor head to detect the effect of the analyte on it has been widely discussed and used by people, such as the microbalance, said poor, and so needless to say, but their design circuit Different, we have developed a wide spectrum analyzer, quartz chips of different frequencies can be used, the circuit shown in Figure 1, the oscillation circuit 74LS04 integrated block, whichever suitable for a wide range of frequencies, simple, easy to start-up, stable and so on. The base circuit consists of a 10MHz stone