海水深度测量系统研究

Study on a Measurement System of Ocean Depth

海水深度测量系统可帮助潜水员实时了解当前的下潜深度,是潜水员生命支持系统的重要组成部分。根据系统的设计要求,选择NS-3型压力传感器,基于MAX4461搭建了海水深度测量电路。通过采取硬件滤波和软件滤波相结合的方法,系统的测量精度优于设计要求。同时可通过RS-485总线在操控台端对测量电路进行深度值的"零点校正"。不同环境下的试验结果表明,本系统工作稳定可靠,完全满足设计要求。

The measurement system of the ocean depth can help divers know the current diving depth in real time. It also plays a key role in life support system of the divers. According to the design demands, NS-3 sensor is used and the depth measurement circuit is designed based on MAX4461. The measurement accuracy is better than the design demands by using filtering in hardware and software. ＂Zero correction＇can be implemented in operation terminal via RS485 bus. It is proved by experiments in different operating environments that this system can work well and completely meets design requirements.