论文部分内容阅读
用石英谐振器作为称重元件,可以称出微克到微微克的重量,相当于一个超微量天平。在石英谐振器的中心加2微升水,加热使水蒸发,水中不挥发物留下,然后根据石英谐振器频率的变化,测出其重量和含量。我们使用 AT 切型10兆赫频率的石英谐振器,电极直径4毫米,称重灵敏度3.5千赫/微克,测定范围1～300ppm,含量在5～300ppm 时测定的相对误差为±15%,1ppm 时为±30%。
Using a quartz resonator as a weighing element, you can weigh micrograms to picograms, which is equivalent to an ultramicrobalance. In the center of the quartz resonator plus 2 microliters of water, heated to evaporate water, non-volatile water left behind, and then based on changes in quartz resonator frequency, measuring its weight and content. We use an AT cut type 10 MHz quartz resonator with an electrode diameter of 4 mm, a weighing sensitivity of 3.5 kHz / μg, a measurement range of 1 to 300 ppm and a relative error of ± 15% when measured at 5 to 300 ppm, Is ± 30%.