CN2154470Y

CN2154470Y - Sensor chain for surveying sea-water temp.

Info

Publication number: CN2154470Y
Application number: CN 93215775
Authority: CN
Inventors: 王淑印; 张云鹏; 蒋德军
Original assignee: Institute of Acoustics CAS
Current assignee: Institute of Acoustics CAS
Priority date: 1993-06-17
Filing date: 1993-06-17
Publication date: 1994-01-26
Anticipated expiration: 2003-06-17

Abstract

The utility model belongs to a device for surveying sea-water temperature, which is mainly composed of temperature sensors, a pressure sensor, a flange, floats, a bearing steel column, a hanging steel column, a steel cable and a signal line, wherein, the temperature sensors are inlaid on the floats and vertically distributed in the sea water in equispaced frame mode to do real-time survey to the change process of the sea-water temperature in different depth of the sea environment. The utility model has the characteristics of strong interchangeability, high precision of temperature measurement, fast reaction rate, strong anti-interference capability, small volume, convenient grouping array, etc., and consequently, can provide data for the numerical forecast and the disaster sea state of the sea environment.

Description

Sensor chain for surveying sea-water temp.

The utility model relates to a kind of device that different ocean depth water temperatures change that detects.

It is a kind of ocean dynamics process that the various yardsticks of ocean interior flow field interacts, and adjoint process forms the spatial variations of ocean interior medium complexity, and water temperature also can produce bigger variation.Therefore the detection of dynamic of ocean temperature section is that research by the seawater mediator discloses the rule that the ocean interior parameter changes, and can provide marine environment numerical forecasting and detection technique for disastrous sea condition telemetry system.

At present, the major equipment that is used for seawater temperature profile measurement both at home and abroad is ocean, a CTD thermohaline deep-sea visualizer.OS 100 CTD data snooping systems as Canadian G.S.GABEL ﹠ ASSOCIATES Ltd production.This equipment uses at fixing erect-position, hangs in the different depth pointwise and patrols the survey ocean temperature, the salinity and the degree of depth.Its primary structure is by temperature, salinity and three kinds of sensors of pressure, is equipped with the electronic surveying circuit, data acquisition unit, and data are deposited parts such as defeated unit and power supply and are sealed in the nonmetal pressure vessel of high strength, and monnolithic case is cylindric.Be used to patrol formula and measure ocean temperature, salinity section.Its temperature-measuring range is-2-30 ℃, and degree of accuracy is 0.015 ℃, resolution is 0.001 ℃, can numerical data self-tolerant record, data can be deposited 1 year, were sent in the microcomputer memory by RS-232 interface, further calculated so that do.But it can not real-time and long-time simultaneous observation temperature profile variation.

The purpose of this utility model is to propose a kind of water temperature section thermistor chain that includes many probes concentrated type structure of compositions such as temperature sensor, pressure transducer and float, in order to detect the different sea water advanced temperature variation that water layer is thin in the shallow sea, temperature variation is violent.

Main technical schemes of the present utility model is that it adopts the temperature sensor by the band shielded cable, pressure transducer, and float, wirerope is hung parts such as steel column and load-bearing steel column and is constituted.And temperature sensor further includes: guard shield, ring flange, shell body and rear pressing cover.Wherein: the diameter range of ring flange can be at the 20-30 millimeter.The length overall of sensor is the 30-45 millimeter.

The utility model is owing to adopt the concentrated type linear array structure, and it has the temperature measurement accuracy of exchange height, and reaction velocity is fast, and sensor bulk is little, in light weight, watertightness performance is strong, seawater corrosion resistance, and anti-electrical interference is strong, group battle array is convenient, and it is big that whole chain tension is held intensity, characteristics such as easy-maintaining and replacing.Therefore, it can vertically be laid in the real-time change that temperature profile in the water layer is measured in certain depths in shallow sea, rivers and the lake, for the ocean dynamics process study provides data, for marine environment numerical forecasting and disastrous sea condition telemetry provide prison to show technology.Militarily, be used for sonar operating range forecast and navigation of submarine and avoid the navigation channel guarantee that interior ripple destroys for naval provides water temperature environment measured data.Forecast water temperature Changing Pattern in sea farming, the prison of control biological cultivation optimum temperature environmental baseline shows.

Fig. 1 is a synoptic diagram of the present utility model;

Fig. 2 is a sensor construction synoptic diagram in the utility model;

Fig. 3 is for inlaying the Floater Structure synoptic diagram of temperature sensor in the utility model.

Further specify in conjunction with the accompanying drawings now and realize embodiment of the present utility model.

Temperature sensor (1) is to be embedded on the float (3), float (3) with 5 to 100 centimetres equidistantly, also can be fixed on the wirerope (4), the two ends of wirerope (4) are locked in the steel bowl of hanging steel column (5) and load-bearing steel column (6) with wirerope copper sheathing and wire fixture respectively unequal-interval.Pressure transducer (2) is fixed on the top of load-bearing steel column (6) of the lower end of thermistor chain.A branch of 33 each 50 meters long shielded cables (7) pass slotted line as transmission of electric signals by the center pit of float (3).Float (3) is to be formed by the big engineering plastics compression moulding of intensity.In order to inlay sensor, the inner chamber of processed sensor on float one lateral column arm, ring flange (9) tightly is pressed in the surface, chamber, and tightens up with screw.

Temperature sensor (1) can adopt 32, or 16 to 128, present embodiment adopts 32.Each sensor has a long shielded cable of 50 meters, and each is with 40 centimetres equidistantly distribute on thermistor chain, when ocean temperature changes, the resistance generation nonlinearities change of temperature sensor (1), signal through cable transmission to measuring junction.The sensitive spot of sensor directly and contact with sea water, thermotonus speed can reach a second level, is added with protective cover with holes (8) on sensor (1), the clashing and breaking when preventing operation at sea.In order to make sensor (1) be easy to when structuring the formation in the space be fixed on the stake body, also design has ring flange (9).Watertight body annotate to solidify with fluid sealant, is furnished with rear pressing cover (11) and makes cable and housing (10) gel in aggregates, has good stretch-proof power.In order to measure the position of thermistor chain in water, in thermistor chain, settled a pressure transducer (2), in order to the change in depth of real-time detection linear array in vertical direction.All temperature, pressure transducer are respectively by 33 road constant current source power supplies.

When briny environment temperature and the degree of depth changed, the resistance of sensor changed, and signal voltage changes then, utilized cable transmission pulpit to the ship that signal is carried out analyzing and processing.This signal is input to 33 tunnel amplifier input terminal, the voltage after the amplification between 0 to 5 volt, then again through the multi-channel scanning switch, analog to digital converter and Control System of Microcomputer.Adopt thereby can repeatedly patrol fast signal, average, give processing, obtain temperature and depth data at last, chart also can show on screen.Data are recorded on the hard disk with file mode, so that keep and be for further processing.

Claims

1, a kind of by temperature sensor (1), the temperature sensor chain that pressure transducer (2) and shielded cable are formed, it is characterized in that it has adopted sensor concentrated type group battle array structure and each temperature sensor (1) to include a ring flange (9), temperature sensor (1) is to be embedded on the float (3), float (3) is fixed on the wirerope (4), the two ends of wirerope (4) are locked in the steel bowl of hanging steel column (5) and load-bearing steel column (6) with wirerope copper sheathing and wire fixture respectively, pressure transducer (2) is fixed on the top of the load-bearing steel column (6) of temperature probe chain lower end, and the shielded cable of a branch of length (7) is passed as signal wire by the center pit of float (3).

2, according to the said temperature sensor chain of claim 1; it is characterized in that said sensor (1); be added with protective cover with holes (8) at an upper portion thereof; also design has ring flange (9) simultaneously; watertight uses fluid sealant to annotate curing; be furnished with rear pressing cover (11), make cable (7) and housing (10) gel in aggregates.

3,, it is characterized in that said propagated sensation device (1) can be 16 to 128 according to the said temperature sensor chain of claim 1.

4, according to the said temperature sensor chain of claim 1, it is characterized in that said float (3), can 5 to 100 centimetres be fixed on equally spacedly on the wirerope (4) also can be unequal-interval.