Development of Gas-Generating Pop-Up Floats for Measurenent of Deep Circulations

卫星跟踪表层漂浮物被广泛用于直接测量表层的海洋环流。利用声学信号对中深浮标进行追踪。这种技术的一个例子是远距离漂浮。然而，由于跟踪范围有限，需要设置和更换接收站，本研究实现了中深自由漂移弹出式浮标的研制。浮子漂移了几十次，就浮出了水面。在25周的地面漂移期间，它为Argos系统传输FADIO信号。它再次下降到预定的漂移深度，这是在发射前确定的。Pop-up是通过在浮子中生成气体来实现的。对纯水进行了电解试验，证明是一种成功的方法。本研究还研制了氢气发生器。苦参碱是胶囊中含有的水合钙。研制了一台总重量为45G的小型、轻便的ARGOS发射机。弹出式浮标将在1991年3月天然气发生器进行海试后完成。

Satellite trackings of surface drifters are widely used for direct measurements of ocean circulation at the surface layer. Trackings of the Mid-Depth floats are made made by using acoustic signals. An example of this technique is sofar floats. However, Tracking range is limited and it needs set and recomery of receiving stations.Development of Pop-Up float for free drift at Mid-Depth is achieved in this study. The float drift for several tens of say and it comes to the surface. During the surface drift for 25 houfs, It transmits fadio signals for the argos system. It descends again to the preset depth of drift which is determined before launch. The Pop-Up is achievid by gas generation in the float. Electrolysis of pure water is tested, Ad it is proved to be a successful method. Hydrogen gas generator is also developed in this study. Working mathrial is calcium hydrate contained in a capsule. A small and light argos transmitter of total weight of 45 G is obtained for the study. Completion of the Pop-Up Float will be made after sea trial ofthe gas generator in march 1991.