Integrated warm salt deep flow detection device, system and method
阅读说明：本技术 一体式温盐深流检测装置、系统及方法 (Integrated warm salt deep flow detection device, system and method ) 是由 刘世萱 高坤 陈世哲 吴玉尚 万晓正 杨英东 杨祥龙 程敏 王波 闫星魁 于 2020-07-08 设计创作，主要内容包括：一体式温盐深流检测装置、系统及方法,在CTD链上安装单点海流计,按照布放CTD链的方式布放,从而在得到温盐深参数的同时,得到海流剖面参数。一体式海水温盐深流检测装置,包括密封舱以及温度传感器、电导率传感器、压力传感器和单点海流计,密封舱上端盖还设有磁环和包塑钢缆孔。将多个CTDC安装于包塑钢缆从而得到CTDC链。基于一体式温盐深流观测装置的海洋剖面观测浮标系统,包括通信卫星、岸基接收站、浮标和安装于浮标的CTDC链。本发明首次提出了CTDC的概念创新性的提出温盐深流一体化设计思路,可同时测量水体的温度、盐度、深度、流速、流向参数,为精细化检测提供了一条可行路径,CTDC也有望成为标准化术语。(The device, the system and the method for detecting the integral type warm salt deep flow are characterized in that a single-point current meter is arranged on a CTD chain and is arranged according to a CTD chain arrangement mode, so that the warm salt deep parameter is obtained, and the ocean flow profile parameter is obtained at the same time. Integral type sea water temperature and salt deep current detection device, including sealed cabin and temperature sensor, conductivity sensor, pressure sensor and single-point current meter, the sealed cabin upper end cover still is equipped with the magnetic ring and wraps the plastic cable hole. A plurality of CTDCs are mounted on the plastic-covered wire cable to obtain a CTDC chain. Ocean profile observation buoy system based on integral type temperature salt deep current observation device includes communication satellite, bank base receiving station, buoy and installs in the CTDC link of buoy. The invention provides a concept innovation of CTDC for the first time and provides a temperature, salinity, depth, flow velocity and flow direction parameter of the water body, a feasible path is provided for fine detection, and CTDC is expected to become a standardized term.)
1. A method for synchronously observing a thermohaline deep flow profile in situ is characterized in that a CTD chain is used as a carrying platform, and a single-point current meter is installed on a specified CTD of the CTD chain to form an integrated thermohaline deep flow detection device; and (3) distributing the obtained CTD chain provided with the single-point current meter to a required sea area according to a conventional CTD chain distribution mode, starting the CTD chain and the single-point current meter on the CTD chain for observation, and obtaining the ocean current profile parameters of the position where the single-point current meter is located while obtaining the temperature and salinity depth parameters.
2. A method for synchronously observing the temperature-salinity deep flow on a full-section in situ is characterized in that a CTD chain is used as a carrying platform, a single-point current meter is installed on each CTD of the CTD chain, the formed device is called a CTDC chain, the CTDC chain is distributed to a required sea area according to a conventional CTD chain distribution mode, the CTD chain and all the single-point current meters are started to observe, and therefore the temperature-salinity deep parameter is obtained and the sea flow full-section parameter is obtained at the same time.
3. Integrative sea water formula warm salt deep current detection device (CTDC), including the CTD, its characterized in that still includes single-point current meter, single-point current meter set up the CTD on to form the CTDC.
4. An integrated seawater temperature and salt deep flow detection device comprises a sealed cabin (6) which is provided with an upper end cover (7) and a lower end cover (2) and contains a circuit board (11) and a battery cabin (12),
the device is characterized by also comprising a temperature sensor, a conductivity sensor, a pressure sensor and a single-point current meter, wherein acquisition processing circuits of the three sensors are integrated on the circuit board (11), the acquisition processing circuit of the single-point current meter is also integrated on the circuit board (11), and the temperature probe (3), the conductivity probe (5), the pressure probe (10) and the single-point current meter probe (1) are all arranged on the lower end cover (2); and the outer end face of the upper end cover (7) is also provided with a magnetic ring (8) for data coupling transmission.
5. An integrated seawater temperature and salinity deep current detection device as claimed in claim 4, characterized in that the single point current meter (1) can be an electromagnetic induction current meter or a single point acoustic current meter.
6. An integrated seawater temperature and salt deep flow detection device as claimed in claim 4, wherein the outer end face of the lower end cover 2 is further provided with a watertight plug (9).
7. An integrated seawater temperature and salinity deep flow detection device as claimed in claim 4, characterized in that a protective cover (4) is arranged outside the temperature probe (3) and the conductivity probe (5), and the protective cover (4) is fixed on the sealed cabin (6).
8. The integrated seawater temperature and salt deep flow detection device as claimed in claim 4, wherein one side of the upper end cover (7) is further provided with a plastic-coated cable hole, and the axis of the single-point current meter probe (1), the axis of the plastic-coated cable hole and the axis of the sealed cabin (6) are not on the same plane.
9. A warm salt deep current detection chain (CTDC chain), characterized by comprising a plurality of integrated warm salt deep current detection devices (15) according to claim 8, and a plastic-coated steel cable (20), wherein the integrated warm salt deep current detection devices (15) are sequentially mounted on the plastic-coated steel cable (20) through plastic-coated steel cable holes.
10. An ocean profile observation buoy system based on an integrated thermohaline deep current observation device comprises a communication satellite (13), a shore-based receiving station (14) and a buoy (19), and is characterized by further comprising the integrated thermohaline deep current detection chain (CTDC chain) of claim 6, wherein the upper end of the plastic-coated steel cable (20) is connected to the bottom of the buoy (19), the lower end of the plastic-coated steel cable is connected with a cable (17), the lower end of the cable (17) is provided with an anchor chain (18), and a floating ball (16) is further arranged on the bottom of the plastic-coated steel cable (20) or the cable (17).
Technical Field
The invention relates to the field of marine environment monitoring, in particular to an integrated thermohaline deep flow detection device, system and method.
Background
The ocean sea water temperature, salinity, depth and flow velocity flow direction observation parameters are one of the most basic important parameters in ocean observation, have important significance for ocean environment observation and forecast, disaster prevention and reduction, ocean development, ocean scientific research and the like, and except single-point sea water temperature, salinity, depth and flow velocity flow direction observation, the temperature, salinity, depth and flow velocity flow direction observation of a large-depth ocean profile is more and more emphasized by ocean scholars at home and abroad.
At present, in ocean profile observation, a thermohaline deep profile and an ocean current profile are two sets of completely independent equipment, the thermohaline deep profile adopts a thermohaline deep chain formed by arranging a series of thermohaline deep (CTD) sensors at different depths, the ocean current profile observation adopts a Doppler acoustic current meter (ADCP) to carry out the ocean current profile observation within the depth range of hundreds of meters, because the thermohaline deep profile and the ocean current profile are completely independent, the thermohaline deep chain are difficult to simultaneously observe in time and space, and the thermohaline deep chain and the ocean current profile observation are difficult to simultaneously observe at the same depth level because the ADCP adopts the acoustic Doppler principle, the ADCP is arranged on a buoy to downwards send out sound waves, flow velocity and flow direction observation of different depths such as 2 meters, 4 meters, 6 meters and the like is carried out according to the echo Doppler principle, and the; in the thermohaline chain, one CTD is required to be installed on different layers for observation, so that the thermohaline flow is difficult to observe on the same layer and at the same time. Although the ADCP utilizes the acoustic Doppler principle, the ADCP has the advantage that one device can observe the ocean current profile, but is limited by acoustic energy and observation precision, in the current practical application, the ADCP observation depth is only about 5-6 hundred meters, and the number of observation layers is about 30-40 layers; and ADCP basically depends on import, the supply period is long, the price is very expensive, each is hundreds of thousands, and the foreign import CTD price is about hundreds of thousands. Through the analysis, the current mode is difficult to realize the fine observation of the temperature, the salinity, the depth, the flow velocity and the flow direction of the same layer and the same moment of the ocean water body, and the requirements of modern ocean environment observation on high space-time resolution and high precision are difficult to meet.
Disclosure of Invention
The invention aims to provide an integrated temperature-salinity deep flow detection device, system and method, which can simultaneously obtain the temperature, salinity, depth and flow velocity and flow direction parameters of seawater of the same water mass, are convenient for fine observation, overcome the defects of the prior art, and have small volume and low power consumption.
A method for synchronously observing a thermohaline deep flow profile in situ is characterized in that a CTD chain is used as a carrying platform, a single-point current meter is installed on a designated CTD of the CTD chain to form an integrated thermohaline deep flow detection device, the obtained CTD chain with the single-point current meter installed is distributed to a required sea area according to a conventional CTD chain distribution mode, the CTD chain and the single-point current meter on the CTD chain are started to observe, and therefore when thermohaline deep parameters are obtained, ocean flow profile parameters of the position where the single-point current meter is located are obtained.
A method for synchronously observing the temperature-salinity deep flow on a full-section in situ is characterized in that a CTD chain is used as a carrying platform, a single-point current meter is installed on each CTD of the CTD chain, the formed device is called a CTDC chain, the CTDC chain is distributed to a required sea area according to a conventional CTD chain distribution mode, the CTD chain and all the single-point current meters are started to observe, and therefore the temperature-salinity deep parameter is obtained and the sea flow full-section parameter is obtained at the same time.
Integrative sea water formula warm salt deep current detection device (CTDC), including the CTD, its characterized in that still includes single-point current meter, single-point current meter set up the CTD on.
An integrated seawater temperature and salt deep flow detection device comprises a sealed cabin which is provided with an upper end cover and a lower end cover and internally provided with a circuit board and a battery cabin,
the device is characterized by also comprising a temperature sensor, a conductivity sensor, a pressure sensor and a single-point current meter, wherein acquisition processing circuits of the three sensors are integrated on the circuit board, the acquisition processing circuit of the single-point current meter is also integrated on the circuit board, and the temperature probe, the conductivity probe, the pressure probe and the single-point current meter probe are all arranged on the lower end cover; and the outer end face of the upper end cover is also provided with a magnetic ring for data coupling transmission.
The single-point current meter 1 may be an electromagnetic induction current meter or a single-point acoustic current meter.
And the outer end face of the lower end cover is also provided with a watertight plug.
And protective covers are arranged outside the temperature probe and the conductivity probe and are fixed on the sealed cabin.
And a plastic-steel-cable-covered hole is also formed in one side of the upper end cover, and the axis of the single-point current meter probe 1, the axis of the plastic-steel-cable-covered hole and the axis of the sealed cabin are not in the same plane.
A warm salt deep flow detection chain (CTDC chain) is characterized by comprising a plurality of integrated warm salt deep flow detection devices and a plastic-coated steel cable, wherein the integrated warm salt deep flow detection devices are sequentially arranged on the plastic-coated steel cable through plastic-coated steel cable holes.
Buoy system is surveyd to ocean profile based on integral type warm salt deep current observation device, including communication satellite, bank base receiving station, buoy, its characterized in that still includes integral type warm salt deep current detection chain (CTDC chain), the package is moulded steel cable upper end and is connected in the buoy bottom, and the lower extreme then is connected with the hawser, the hawser lower extreme is the anchor chain, still be equipped with the floater on package plastic steel cable bottom or the hawser.
Advantages of the invention
At present, ocean current observation methods can be roughly divided into 4 types, namely a mechanical ocean current meter, an electromagnetic ocean current meter, an acoustic Doppler ocean current meter and an acoustic time difference ocean current meter, wherein the electromagnetic ocean current meter becomes the main force in single-point ocean current detection by the advantages of simple structure principle, high detection precision, convenience in use, low price, small size and the like.
Therefore, the characteristics of high accuracy and small volume of electromagnetic sea current measurement are utilized, the high accuracy CTD is combined, the high accuracy CTD and the high accuracy CTD are integrated into a whole, single-point high accuracy simultaneous same-place (same time and same layer depth) observation of the temperature and salt deep current is realized, and then the integrated temperature and salt deep current sensors are arranged into chains according to different depths, so that ocean temperature and salt deep current profile observation is realized.
The thermohaline deep flow profile observation chain used by the invention can be set according to actual needs, has the length of up to kilometers and is far beyond the depth observed by the traditional ADCP.
The application has the following significant advantages:
1. the temperature, salinity, depth, flow velocity and flow direction parameters of the same small water body can be measured simultaneously, and a feasible path is provided for fine detection.
The application firstly provides the concept of CTDC, just as CTD becomes a standardized product in the industry, under the technical concept of the application, CTDC is expected to become an industry standardized term.
The ocean profile generally refers to the temperature salt deep current, and the CTD can only measure three of the temperature salt deep current, only the CTDC can realize synchronous detection on the temperature salt deep current, so that the CTDC replaces the CTD to a certain extent and is a future trend.
2. The temperature probe, the conductivity probe, the pressure probe and the ocean current probe are integrated into a whole, so that the multiplexing of power supply and partial circuits can be realized, and the control and the reduction of power consumption are facilitated.
3. The characteristics of high accuracy and small volume of the electromagnetic method ocean current measurement are combined with the high-accuracy CTD, the two are integrated and fused into a whole, single-point high-accuracy simultaneous same-ground (same time and same layer depth) observation of the thermohaline deep current is realized, and then the integrated thermohaline deep current sensors are arranged into chains according to different depths, so that ocean thermohaline deep current profile observation is realized, the problem that the thermohaline deep current and the ocean current cannot be simultaneously same-ground in the traditional method is effectively solved, the interval between layers can be very small, and the defect that the number of layers of the traditional ADCP is limited is overcome.
4. The invention can adopt a domestic thermohaline deep-flow sensor, so the price is lower, more importantly, the high-precision in-situ observation of thermohaline depth and ocean current at the same time is realized, namely, the production cost is reduced, and the detection effect is obviously improved.
Drawings
FIG. 1 is a top view of the integrated thermohaline deep flow observation device of the present invention.
Fig. 2 is an exploded view of the integrated thermohaline deep flow observation device of the invention.
FIG. 3 is an end view of the integrated thermohaline deep flow observation device of the present invention.
FIG. 4 is a perspective view of a lower end part of the integrated thermohaline deep flow observation device of the invention.
FIG. 5 is a flow chart of the operation of the integrated thermohaline deep flow detection device of the present invention.
FIG. 6 is an ocean profile observation buoy system based on an integrated warm salt deep flow detection device.
The device comprises a current meter probe 1, a current meter probe 2, a lower end cover 3, a temperature probe 4, a protective cover 5, a conductivity probe 6, a sealed cabin 7, an upper end cover 8, a magnetic ring 9, a watertight part 10, a pressure probe/
Detailed Description
A method for synchronously observing a thermohaline deep flow profile in situ is characterized in that a CTD chain is used as a carrying platform, a single-point current meter is installed on a designated CTD of the CTD chain to form an integrated thermohaline deep flow detection device, the obtained CTD chain with the single-point current meter installed is distributed to a required sea area according to a conventional CTD chain distribution mode, the CTD chain and the single-point current meter on the CTD chain are started to observe, and therefore when thermohaline deep parameters are obtained, ocean flow profile parameters of the position where the single-point current meter is located are obtained.
A method for synchronously observing the temperature-salinity deep flow on a full-section in situ is characterized in that a CTD chain is used as a carrying platform, a single-point current meter is installed on each CTD of the CTD chain, the formed device is called a CTDC chain, the CTDC chain is distributed to a required sea area according to a conventional CTD chain distribution mode, the CTD chain and all the single-point current meters are started to observe, and therefore the temperature-salinity deep parameter is obtained and the sea flow full-section parameter is obtained at the same time.
Integrative sea water formula warm salt deep current detection device (CTDC), including the CTD, its characterized in that still includes single-point current meter, single-point current meter set up the CTD on.
Referring to fig. 1-4, an integrated seawater temperature and salt deep flow detection device comprises a sealed cabin 6 with upper and lower end covers (7, 2) and containing a
the device is characterized by also comprising a temperature sensor, a conductivity sensor, a pressure sensor and a single-point current meter, wherein acquisition processing circuits of the three sensors are integrated on the
The single-point current meter 1 may be an electromagnetic induction current meter or a single-point acoustic current meter.
And the outer end face of the lower end cover 2 is also provided with a watertight plug 9.
And arranging a protective cover 4 outside the temperature probe 3 and the conductivity probe 5, wherein the protective cover 4 is fixed on the sealed cabin 6.
And a plastic-steel-cable-covered hole is further formed in one side of the upper end cover 7, and the axis of the single-point current meter probe 1, the axis of the plastic-steel-cable-covered hole and the axis of the sealed cabin 6 are not in the same plane.
The water sealing piece 9 is used for realizing the configuration and detection of the integrated warm-salt deep flow device 15; the lower end cover 2 is mainly used for mounting various probes; the temperature probe 3 is used for realizing the measurement of the temperature of the seawater; the conductivity probe 5 is used for measuring the salinity of the seawater; the pressure probe 10 is used for realizing the measurement of the depth of the device in seawater; the current meter probe 1 is used for measuring the flow direction and the flow velocity of the seawater; the sealed cabin 6 is used for realizing the sealing of the device measuring circuit; the upper end cover 7 is used for realizing the installation of a magnetic ring; the magnetic ring 8 is used for realizing data transmission of the device. In order to reduce the weight and the volume, the sealing shell of the device is made of a high-strength titanium material TC 4.
An electromagnetic induction current probe 1, a pressure probe 10, a temperature probe 3, a conductivity probe 5 and a watertight connector of the integrated temperature, salt and depth sensor are integrated on a lower end cover 2 of the sensor, wherein the current meter probe 1, the pressure probe 10 and the watertight connector are mounted at the top end of the lower end cover 2, 10cm of metal shielding is kept around a measuring part of the current meter probe 1, and accuracy of current measurement is guaranteed; a temperature probe 3 and a conductivity probe 5 are mounted to the side of the lower end cap 2. The probes and the lower end cover 2 are sealed through O-shaped rings.
The single-point current meter probe 1 is installed in the vertical direction of the conductivity probe 5, is not in the same plane with the plastic-coated steel cable 20 and the sealed cabin 6, and prevents that after the installation, the plastic-coated steel cable 20 has influence on the current measurement in front of the single-point current meter 1.
As shown in fig. 5, the detection process using the above device/sensor of the present invention:
when the set time is reached or an upper computer starting acquisition instruction is received, the system is started from a low-power consumption dormant state to a normal acquisition state,
the temperature probe, the conductivity probe, the pressure probe and the ocean current probe are electrified and work uniformly according to the excitation and control time sequence,
after signal modulation and phase-locked amplification detection, signal acquisition and processing are carried out,
Performing conventional calculation processing by a microprocessor;
the result is output and stored in a memory,
then, the system enters a low-power consumption sleep mode according to a certain control time sequence, and the acquisition work is finished.
Referring to fig. 6, a thermohaline deep flow detection chain (CTDC chain) is characterized by comprising a plurality of integrated thermohaline deep flow detection devices and a plastic-coated steel cable, wherein the integrated thermohaline deep flow detection devices are sequentially mounted on the plastic-coated steel cable through plastic-coated steel cable holes.
As shown in fig. 6, the system for detecting the warm-salt deep current comprises a communication satellite 13, a shore-based receiving station 14 and a buoy 19, and is characterized by further comprising an integrated warm-salt deep current detection chain (CTDC chain), wherein the upper end of the plastic-coated steel cable 20 is connected to the bottom of the buoy 19, the lower end of the plastic-coated steel cable is connected with a cable 17, the lower end of the cable 17 is provided with an anchor chain 18, and the bottom of the plastic-coated steel cable 20 or the cable 17 is further provided with a floating ball 16. On a widely applied ocean buoy, a plastic-coated steel cable is adopted as an upper part of an anchor system, and an integrated thermohaline deep flow sensor (CTDC) is installed on the plastic-coated steel cable according to a certain observation layer depth, so that the real-time observation of an ocean thermohaline deep flow profile can be realized.
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