Abstract
The development and key calibration methods of the sensors for the measurement and automatic monitoring of dissolved oxygen in seawater have always been the research focus in the field of Marine monitoring technology. This paper summarizes the measurement methods of dissolved oxygen in seawater, the working principle and advantages and disadvantages of different dissolved oxygen sensors, and the research on calibration methods of mainstream optical dissolved oxygen sensors. Especially for optical dissolved oxygen sensors with better stability, longer service life and stronger anti-interference ability, several laboratory calibration methods which have been developed and applied, as well as in situ calibration methods which are still in the research stage are analyzed.
Highlights
Dissolved oxygen in seawater is an important indicator of Marine environmental monitoring and has important research significance
Based on the above three main measurement methods, applications, advantages and disadvantages of dissolved oxygen in seawater, this article focuses on the analysis of the sensor calibration method, which is the core of the measurement accuracy of the automatic measurement sensor, the type and measurement principle and the relationship between them, especially at present The in-situ calibration method of the optical dissolved oxygen sensor that is still in the research stage is analyzed and described, in order to provide a reference for the research of dissolved oxygen measurement method and sensor application
Climatological data calibration method is an in-situ calibration method proposed by Takeshita[12] This method uses the World Ocean Atlas WOA to calibrate optical dissolved oxygen sensors
Summary
Dissolved oxygen in seawater is an important indicator of Marine environmental monitoring and has important research significance. Among the measurement methods of dissolved oxygen in seawater, Winkler iodine method, Clark electrode method and optical method have become the main measurement methods that have been applied with their unique advantages. Based on the above three main measurement methods, applications, advantages and disadvantages of dissolved oxygen in seawater, this article focuses on the analysis of the sensor calibration method, which is the core of the measurement accuracy of the automatic measurement sensor, the type and measurement principle and the relationship between them, especially at present The in-situ calibration method of the optical dissolved oxygen sensor that is still in the research stage is analyzed and described, in order to provide a reference for the research of dissolved oxygen measurement method and sensor application
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call