我们用相对电导比法对现场采集的海水盐度进行精密测量,所得盐度值能与UNESCO(联合国教科文组织)标准统一。在圆腔H_(011)模式中通过微扰法测量了不同盐度海水的复介电常数,获得微波x波段(9370兆赫)海水的复介电常数与其盐度之间的关系。为了减小误差,提高精度,测量时对文献报导的方法做了若干改进,并已构成独立的方法。 We used the relative conductance method to measure the salinity of the saltwater collected in the field and make the salinity values ​​consistent with the UNESCO (UNESCO) standards. The complex permittivity of seawater with different salinity was measured by the perturbation method in the cavity H_ (011) mode, and the relationship between the complex permittivity and the salinity of the seawater in the microwave x band (9370 MHz) was obtained. In order to reduce the error and improve the accuracy, some improvements have been made to the methods reported in the literature during measurement, and an independent method has been formed.