论文部分内容阅读
最近十年以来,应用下沉速率技术测定海洋深度的方法获得迅速地发展。这种方法精确、廉价,适于走航和自记,为快速测定海洋环境提供了一种新的手段。采用这种方法要求没计出一个按予定速度均匀下沉的仪器装置。本文介绍了描述落体在水中自由下沉的终端速度方程式及其在各种初始条件下的解答;计算了到达终端速度的时间;给出了落体作直线下沉的力学条件;并探讨了等速下沉装置的没计原则。
In the recent decade, the method of determining the depth of the ocean using the sinking rate technique has been rapidly developed. This method is accurate, cheap, suitable for navigation and self-recording, providing a new measure for the rapid determination of the marine environment. This method requires that no instrument set be sunk evenly at a given speed. This paper presents a terminal velocity equation that describes the free fall of a body in water and its solution under various initial conditions. The time to reach the terminal velocity is calculated. The mechanical condition of the body falling straight is given. No principle of sinking device.