水深测量中自容式验潮仪投放装置的设计

Design of Self-contained Tide Gauge Dropping Device in Bathymetry

在近海工程的水深测量中,潮位的观测与控制是必不可少的一项环节,为测量提供参考基准和水位改正。然而,当测量区域面积较大时,沿岸单一验潮站已不能满足水位的控制需要,必须合理布设多潮位站对探测到的水深数据进行多站分带水位改正。由于海上没有其他地物的依附,通常抛投自容式水位计设立海上定点潮位站。用于投放并携带自容式验潮仪的传统重件式支架装置有易丢失、不便打捞、受潮流干扰易翻倒移位、易被泥沙覆盖、滋生海洋生物等缺点,从而导致验潮仪丢失,压力感应零点漂移,压力感应器被堵塞,潮汐数据产生误差。本文设计一种携带自容式验潮仪的投放装置,以减小这些客观因素对潮汐数据精度的影响。

In the bathymetric survey of offshore engineering,the observation and control of tide level is an essential link,which provides reference datum and water level correction for measurement.However,when the measurement area is large,the single tide station along the coast can not meet the demand of water level control.Therefore,it is necessary to reasonably arrange multiple tide level stations to correct the water level of the detected water depth data.Since there is no other surface features attached to the sea,the self-contained water level gauge is usually thrown to set up the fixed-point tide station on the sea.The traditional heavy bracket device for putting and carrying self-con⁃tained tide gauge has some disadvantages,such as easy to lose,inconvenient to salvage,easy to overturn and shift due to the interference of tidal current,easy to be covered by sediment,and breeding of marine life,which leads to the loss of tide gauge,zero drift of pressure sensor,blockage of pressure sensor,and error of tide data.In order to reduce the influence of these objective factors on the accuracy of tidal data,a self-contained tide gauge was designed in this paper.