| Temperature, salinity and depth data play an important role in ocean observation, ocean resources development, national defense and military fields, providing basic water quality data for human research on ocean processes, rational development of ocean resources, protection of ocean ecology and other important fields. In order to realize the real-time acquisition, real-time display and data storage of all kinds of data in the temperature and salt depth sensor, this paper is based on LabVIEW（Laboratory Virtual Instrument Engineering） software. USB data acquisition card, temperature sensor, pressure sensor, conductivity sensor, computer and other hardware, through the design of acquisition program, to realize the communication and interaction between various sensors and computer,and finally complete the integrated design of underwater temperature and salt depth data acquisition program based on LabVIEW. After many tests, the program has the characteristics of stable performance and strong universality. At the same time, in terms of measurement accuracy, the temperature and depth data are basically consistent with the actual measured data, and the average error of salinity data is 2.33%, which basically meets the equipment requirements, providing a new idea for the acquisition of underwater temperature and salinity data. |
