CN202033129U - Consumable optical fiber bathythermograph probe - Google Patents
Consumable optical fiber bathythermograph probe Download PDFInfo
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- CN202033129U CN202033129U CN2011200329928U CN201120032992U CN202033129U CN 202033129 U CN202033129 U CN 202033129U CN 2011200329928 U CN2011200329928 U CN 2011200329928U CN 201120032992 U CN201120032992 U CN 201120032992U CN 202033129 U CN202033129 U CN 202033129U
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- optical fiber
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Abstract
The utility model relates to a consumable optical fiber bathythermograph probe, which comprises a probe cylinder, an upper optical fiber coil, a lower optical fiber coil, an underwater probe head and optical fibers. An upper optical fiber coil mandrel of the upper optical fiber coil is connected with the probe cylinder in a threaded manner, the lower optical fiber coil is connected with the underwater probe head in a threaded manner by a lower optical fiber coil mandrel, a fiber bragg grating temperature sensor and a fiber bragg grating pressure sensor are fixed into an inner cavity of the underwater probe head and serially connected to one end of the lower optical fiber coil by the optical fibers, the other end of an optical fiber of the lower optical fiber coil penetrates through an inner cavity of an underwater probe and is connected with an optical fiber of the upper optical fiber coil, and the other end of the optical fiber of the upper optical fiber coil is connected with receiving demodulation equipment. The consumable optical fiber bathythermograph probe has the advantage that the two optical fiber coils can be unreeled automatically along with movement of a ship, so that a transmission optical fiber is prevented from being excessively stressed when the ship moves, fine gesture of the underwater probe which operates in water is ensured, extensive measurement of marine hydrological conditions in short time is carried out, and measuring speed is effectively increased.
Description
Technical field
The utility model belongs to naval's anti-submarine warfare, scientific investigation field, ocean, mainly is the dark probe of a kind of expendable optical fiber temperature.
Background technology
The temperature distributing measuring of production expendable in the world instrument is called for short XBT system, English full name: the many companies that mainly contain states such as the U.S., Japan, Italy of Expendable Bathythermograph system.Representational is the product of the Sippican of subsidiary company of Lockheed Martin company of the U.S., and its T4, T7 amphitypy consume dark probe warm in nature and be widely used in fields such as naval's anti-submarine warfare, international ocean scientific investigation.The consumption of its production dark probe warm in nature adopts thermistor as the thermometric device, and defective is that the probe degree of depth of living in is estimation fall time by probe, but not the result who accurately measures.At present, domestic military affairs, scientific investigation field, ocean widely used expendable ocean temperature section plotter are imported product.
The dark probe of optical fiber temperature has a wide range of applications.Military products can be used for the anti-submarine warfare of naval, and civilian goods can be used for fields such as ocean scientific investigation, marine resources development.Owing to adopt ultra-fine enameled wire high, restricted the practical application of homemade expendable XBT system as the expendable XBT probe cost of signal wire.Adopt optical fiber when improving measuring accuracy production cost to be descended as the dark probe of the optical fiber temperature of sensitive element and signal transmssion line significantly, price has been compared certain competitive power with external product.
The utility model content
The purpose of this utility model is the shortcoming and defect that overcomes prior art, provides a kind of expendable optical fiber temperature dark probe.
The utility model solves the technical scheme that its technical matters adopts: the dark probe of this expendable optical fiber temperature, comprise probe tube, go up roll of optical fiber, go up the roll of optical fiber mandrel, go into the water prode empennage, fiber-optical grating temperature sensor, roll of optical fiber, fiber bragg grating pressure sensor, entry probe head, roll of optical fiber mandrel, inner chamber, bottom end cover and optical fiber down down, the last roll of optical fiber mandrel of last roll of optical fiber is threaded with the probe tube, and following roll of optical fiber is threaded with the entry probe head by following roll of optical fiber mandrel; Inner chamber internal fixation at the entry probe head has fiber-optical grating temperature sensor and fiber bragg grating pressure sensor, fiber-optical grating temperature sensor and fiber bragg grating pressure sensor adopt optical fiber to be connected in series to down an end of roll of optical fiber, the inner chamber that the optical fiber other end of following roll of optical fiber passes into water prode links to each other with the optical fiber of last roll of optical fiber, and the other end of the optical fiber of last roll of optical fiber connects receiving demodulation equipment.
Integrated fiber-optical grating temperature sensor and fiber bragg grating pressure sensor in the described probe of the present utility model, the temperature and the depth data of the present position of can determining simultaneously to pop one's head in, thereby the measuring error of effectively reducing.But tens of rice～thousands of meters optical fiber of coiling in popping one's head in as required are to satisfy the input demand of different depth, different test platforms.Other type sensor except that fiber-optical grating temperature sensor and fiber bragg grating pressure sensor also can be installed in the probe of the present utility model, be applicable to the expendable measuring system of other sections such as measuring the velocity of sound, salinity
For making high precision optical fiber grating temperature sensor and fiber bragg grating pressure sensor reliably working and measuring-signal by the stable receiving demodulation equipment that transfers to of optical fiber, the design of the dark probe of optical fiber temperature need guarantee into the water prode attitude stabilization, at the uniform velocity descend, simultaneously optical fiber stressed its maximum tensile strength that is not more than in the decline process.
Leave the probe tube to the whole process of power cut-off from going into water prode, go into the force-bearing situation more complicated of water prode.Go in the process that water prode descends in water, certain external force that is subjected to constantly has: gravity G, buoyancy P, water resistance Q.The parameter that wherein influences resistance Q is for having water-mass density ρ, resistance coefficient C
x, speed V, sectional area S;
Q＝C
x*ρ/2*S*V
2 (1)
At the uniform velocity descend in order to guarantee that water prode is approximate in water, when its speed reaches the theoretical velocity V of appointment, its suffered making a concerted effort
F＝G-P-Q＝0 (2)
According to different demands, the fiber lengths difference of the dark probe of optical fiber temperature coiling, thereby probe diameter varies in size.Determine to calculate buoyancy P after the probe physical dimension, water resistance Q adjusts water prode head counterweight material, satisfies formula 2 requirements.Need finely tune probe profile and weight material owing to environment for use is different in the practical application according to test findings.
For making water prode basic perpendicular attitude that keeps in the decline process descending, the configuration design of going into water prode becomes similar water droplet shape, meets the hydrodynamics characteristic; Its streamlined contour helps reducing water resistance, empennage the stable of attitude in the water that help popping one's head in.
The dark probe of optical fiber temperature adopts two roll of optical fiber to carry out the signal transmission of thousands of meters distances, two roll of optical fiber are synchronous unwrapping wire in the descending process of probe, roll of optical fiber be designed to two roll of optical fiber structures of taper and reverse wire winding, can overcome optic fibre force and the excessive problem of radius bend in the unwrapping wire process like this, thereby reduce the loss in the signal transduction process.Simultaneously owing to adopt two roll of optical fiber structures, probe optical fiber in launch process is stressed hardly, thereby frangibility not.
The effect that the utility model is useful is: optical fiber XBT pop one's head in inner integrated optical fiber grating temperature sensor and fiber bragg grating pressure sensor, Optical Fiber Transmission fiber-optic grating sensor signal can be realized wavelength-division multiplex, therefore an available optical fiber transmits temperature, two kinds of detection signals of pressure, has solved the expensive problem that needs the multicore transmission line to be brought when the XBT that adopts thermistor pops one's head in while detected temperatures, pressure signal.Simultaneously, the simultaneously-measured technology of this temperature and depth information has reduced to obtain the measuring error that depth information causes by the descending speed of estimation probe.The dark probe of expendable optical fiber temperature adopts two roll of optical fiber to carry out hundreds of signal transmission to thousands of meters distances.Two roll of optical fiber in the probe tube are along with the automatic unwrapping wire of the motion of ships, and Transmission Fibers was stressed excessive when two-way unwrapping wire technology was avoided Ship Motion, and the good attitude of water prode when moving gone in assurance in water.The dark probe of optical fiber temperature can be easily under steam the naval vessel or aircraft on throw in, thereby can carry out large-scale marine hydrology conditioned measurement at short notice, improved measuring speed effectively.
Description of drawings
Fig. 1 is the dark probe of an expendable optical fiber temperature sectional view.
Fig. 2 goes into water prode profile synoptic diagram for what expendable optical fiber temperature was deeply popped one's head in.
Description of reference numerals: the 1. tube of popping one's head in; 2. go up roll of optical fiber; 3. go up the roll of optical fiber mandrel; 4. go into the water prode empennage; 5. fiber-optical grating temperature sensor; 6. descend roll of optical fiber; 7. fiber bragg grating pressure sensor; 8. entry probe head; 9. descend the roll of optical fiber mandrel; 10. inner chamber; 11. bottom end cover; 12. optical fiber.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in the figure, the dark probe of this expendable optical fiber temperature, comprise probe tube 1, go up roll of optical fiber 2, go up roll of optical fiber mandrel 3, go into water prode empennage 4, fiber-optical grating temperature sensor 5, roll of optical fiber 6, fiber bragg grating pressure sensor 7, entry probe head 8, roll of optical fiber mandrel 9, inner chamber 10, bottom end cover 11 and optical fiber 12 down down, the last roll of optical fiber mandrel 3 of last roll of optical fiber 2 is threaded with probe tube 1, and following roll of optical fiber 6 is threaded with entry probe head 8 by following roll of optical fiber mandrel 9; Inner chamber 10 internal fixation at entry probe head 8 have fiber-optical grating temperature sensor 5 and fiber bragg grating pressure sensor 7, fiber-optical grating temperature sensor 5 and fiber bragg grating pressure sensor 7 adopt optical fiber 12 to be connected in series to down an end of roll of optical fiber 6, the inner chamber 10 that optical fiber 12 other ends of following roll of optical fiber 6 pass into water prode links to each other with the optical fiber 12 of last roll of optical fiber 2, and the other end of the optical fiber 12 of last roll of optical fiber 2 connects receiving demodulation equipment.Described roll of optical fiber 2 and the following roll of optical fiber 6 employing conical fiber volumes gone up, the optical fiber 12 of following roll of optical fiber 6 and last roll of optical fiber 2 adopts the reverse direction coilings.
Principle of work of the present utility model is: the bottom end cover 11 of opening probe tube 1, go into water prode carry fiber-optical grating temperature sensor 5 and fiber bragg grating pressure sensor 7 and down roll of optical fiber 6 skid off along probe tube 1 inwalls, last roll of optical fiber 2 is trapped in naval vessel or the carry-on delivery device with probe tube 1, and optical fiber 12 still links to each other with receiving demodulation equipment; Go into water prode and produce certain entry initial velocity under the self gravitation effect, be subjected to the combined action of gravity, buoyancy and water resistance behind the water, when going into the water prode stress balance, decline will remain a constant speed.Probe is wrapped in 12 while of the optical fiber unwrapping wire of roll of optical fiber 2, following roll of optical fiber 6 in the process that descends.Go into the fiber-optical grating temperature sensor 5 of inner chamber 10 of water prode and the measuring-signal of fiber bragg grating pressure sensor 7 and be delivered to naval vessel or carry-on receiving demodulation equipment, through Wavelength demodulation and signal Processing can obtain the to pop one's head in degree of depth and the temperature information of present position by optical fiber 12.
The utility model adopts fiber-optical grating temperature sensor 5 and fiber bragg grating pressure sensor 7 to measure the ocean temperature section simultaneously, and an optical fiber 12 by roll of optical fiber 6 and last roll of optical fiber 2 down with the optical signal transmission of underwater survey to external equipment.The inner chamber 10 of going into water prode can be installed other type sensor except that fiber-optical grating temperature sensor 5 and fiber bragg grating pressure sensor 7, to adapt to the expendable measuring system of other sections such as measuring the velocity of sound, salinity.
Definite need of the material of entry probe head 8 are selected after calculating buoyancy and water resistance according to the monnolithic case size, and purpose is to be similar at the uniform velocity after the entry of assurance probe to descend.The probe material can be selected in different densities materials such as stainless steel, aluminium alloy, cast iron, lead.Water droplet shape is gone into water prode and is had good flow dynamic characteristic, smooth goes into water prode empennage 4 the stable of attitude in the water that help popping one's head in.Require with different according to throwing in the degree of depth as the travel speed of the naval vessel of throwing in platform or aircraft, the optical fiber 12 total length maximums that following roll of optical fiber 6 and last roll of optical fiber 2 are twined can reach more than the 6000m, and can require design to twine more long optical fibers according to special environment for use, need change the physical dimension of the dark probe of expendable optical fiber temperature simultaneously.Conical fiber volume is convenient to the release of optical fiber, and the optical fiber 12 of following roll of optical fiber 6 and last roll of optical fiber 2 adopts the reverse direction coilings, avoids in the launch process optical fiber to bear excessive torsion and causes fractureing.
In addition to the implementation, all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (2)
1. an expendable optical fiber temperature is popped one's head in deeply, it is characterized in that: comprise probe tube (1), go up roll of optical fiber (2), go up roll of optical fiber mandrel (3), go into water prode empennage (4), fiber-optical grating temperature sensor (5), roll of optical fiber (6), fiber bragg grating pressure sensor (7), entry probe head (8), roll of optical fiber mandrel (9), inner chamber (10), bottom end cover (11) and optical fiber (12) down down, the last roll of optical fiber mandrel (3) of last roll of optical fiber (2) is threaded with probe tube (1), and following roll of optical fiber (6) is threaded with entry probe head (8) by following roll of optical fiber mandrel (9); Inner chamber (10) internal fixation in entry probe head (8) has fiber-optical grating temperature sensor (5) and fiber bragg grating pressure sensor (7), fiber-optical grating temperature sensor (5) and fiber bragg grating pressure sensor (7) adopt optical fiber (12) to be connected in series to down an end of roll of optical fiber (6), the inner chamber (10) that optical fiber (12) other end of following roll of optical fiber (6) passes into water prode links to each other with the optical fiber (12) of last roll of optical fiber (2), and the other end of the optical fiber (12) of last roll of optical fiber (2) connects receiving demodulation equipment.
2. the dark probe of expendable optical fiber temperature according to claim 1 is characterized in that: describedly go up roll of optical fiber (2) and following roll of optical fiber (6) adopts the conical fiber volume, following roll of optical fiber (6) goes up the optical fiber that optical fiber on employing and the last roll of optical fiber (2) is the reverse direction coiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200329928U CN202033129U (en) | 2011-01-25 | 2011-01-25 | Consumable optical fiber bathythermograph probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200329928U CN202033129U (en) | 2011-01-25 | 2011-01-25 | Consumable optical fiber bathythermograph probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202033129U true CN202033129U (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200329928U Expired - Fee Related CN202033129U (en) | 2011-01-25 | 2011-01-25 | Consumable optical fiber bathythermograph probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202033129U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183317A (en) * | 2011-01-25 | 2011-09-14 | 中国船舶重工集团公司第七一五研究所 | Expendable optical fiber temperature and depth probe |
| CN104792437A (en) * | 2015-04-21 | 2015-07-22 | 国家海洋技术中心 | Optical expandable ocean temperature and depth profile measuring probe |
-
2011
- 2011-01-25 CN CN2011200329928U patent/CN202033129U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183317A (en) * | 2011-01-25 | 2011-09-14 | 中国船舶重工集团公司第七一五研究所 | Expendable optical fiber temperature and depth probe |
| CN104792437A (en) * | 2015-04-21 | 2015-07-22 | 国家海洋技术中心 | Optical expandable ocean temperature and depth profile measuring probe |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20180125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |