CTD (Conductivity, Temperature, Depth) sensor and control method for thermal hysteresis effect inhibition
A control method and sensor technology, which are applied in the control of temperature and salinity sensors and the inhibition of thermal hysteresis effect, and the control field of deep-sea temperature and salinity sensors, which can solve problems such as no inhibition of thermal hysteresis effect and application requirements that cannot be well applied.
Active Publication Date: 2019-11-05
OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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[0005] Most of the existing temperature, salinity and depth measuring instruments for profile measurement in the market do not have the function of suppressing the thermal hysteresis effect and the corresponding control methods, and are not well suitable for the application of deep sea underwater autonomous mobile observation platform for on-site measurement of temperature, salt and depth Require
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[0063] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0064] On the contrary, the invention covers any alternatives, modifications, equivalent methods and schemes within the spirit and scope of the invention as defined by the claims. Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the detailed description of the present invention below. The present invention can be fully understood by those skilled in the art without the description of these detailed parts.
[0065] The temperature, salinity and depth sensor of the present invention suppresses the thermal hyst...
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The invention relates to a CTD sensor and a control method for thermal hysteresis effect inhibition, and belongs to the technical field of CTD sensors. Data of a reference temperature sensor (a thermistor in a conductivity sensor probe) integrated in a conductivity sensor is compared with data of a temperature measuring sensor (a platinum resistor) integrated in an end cap of the CTD sensor, a method of a thermal hysteresis effect inhibition formula is selected according the range of a difference, the practical conductivity near the reference temperature sensor is obtained, and the error amplitude caused by the thermal hysteresis effect is corrected. The method can be used to substantially improve the precision of measurement data when the CTD sensor of an underwater autonomous movable type observation platform crosses a thermocline, and the disadvantage of present CTD profile measurement technologies is overcome.
Description
technical field [0001] The invention belongs to the technical field of temperature, salt and depth sensors, in particular to a temperature, salt and depth sensor and a control method for suppressing thermal hysteresis effects, and is a control method for deep sea temperature, salt and depth sensors suitable for underwater autonomous navigation platforms. Background technique [0002] The conductivity, temperature and depth measurement technology of seawater is one of the key technologies to study and utilize the rapid changes of ocean and global climate. Since the early 1970s, temperature-salinity-depth (CTD) sensors have been used as an important tool for hydrological surveys, which can obtain environmental parameters of ocean physics and provide important temperature and temperature data for the research of ocean physics in terms of environment, flow field, and hydrodynamics. , salt, depth and other basic data. [0003] The underwater autonomous mobile observation platfor...
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IPC IPC(8): G01N27/04G01N27/06G01N27/08G01K7/21
CPCG01N27/046G01N27/06G01N27/08G01K7/21
Inventor 宋文杰吕斌胡军锋刘鹏高金龙刘巧君蒋庆林李新娟温京亚贺江姜梦玥
Owner OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI