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用DR300型宽幅ADCP在胶洲湾口门进行了走航式断面观测。观测期间悬沙浓度小于40mp／L，悬沙粒度分布曲线具有双峰特征，调查船航速为2—3m／s。用水样过滤法率定相应的ADCP声学信号，获得了计算悬沙浓度的半经验公式及悬沙浓度剖面分布数据。分析结果表明，即使在悬沙浓度较低、悬沙分选性较差、船速较高等不利于ADCP观测的现场条件下，测量误差仍与光透式浊度计的误差相当。因此，在走航状态和低悬沙浓度条件下，用宽幅ADCP测定悬沙浓度是可行的；这一方法在浅海区域的应用可以使悬沙浓度测量效率得到大幅度提高。
DR300 type wide ADCP in Jiaozhou Bay port doorway section observation. Suspended sediment concentration during the observation period is less than 40mp / L, the particle size distribution curve of the suspension has a bimodal characteristic, and the survey ship speed is 2-3m / s. The corresponding ADCP acoustic signals were calibrated by the water sample filtration method, and the semi-empirical formulas for calculating suspended sediment concentration and the distribution data of suspended sediment concentration profiles were obtained. The analysis results show that even in the low concentration of suspended sediment, the poor sorting of suspended sediment, the higher ship speed is not conducive to the ADCP observation field conditions, the measurement error is still comparable with the optical turbidity meter error. Therefore, it is feasible to measure the concentration of suspended sediment with wide ADCP under the condition of navigational state and low suspended sediment concentration. The application of this method in shallow sea area can greatly improve the efficiency of measuring suspended sediment concentration.