KR0135568Y1 - Towed sonar system with temperature sensor assembly - Google Patents

Abstract

The present invention is a towing type sonar detector consisting of a sensor unit for sonar detection, a towing cable connecting the sensor unit to a towing vessel, a tail rope bonded to the opposite side of the cable, the temperature sensor assembly, It relates to a towing type sonar detector composed of the connector assembly for coupling the temperature sensor assembly, and the tail shell for bonding the tail rope.

Description

Towing Sonar with Temperature Sensor Assembly

1 is a view schematically showing a state of use of a towed sonar equipped with a temperature sensor assembly of the present invention.

2 is a partial cross-sectional view of the tail portion of the sensor portion of the towed sonar equipped with a temperature sensor assembly of the present invention.

* Explanation of symbols for main parts of the drawings

1: towing type sonar 2: sensor

3: towed cable 17: tail rope

18: filling oil 19,23: connector assembly

20: hose 21: temperature sensor assembly

25: tail shell 27: temperature sensor

31: amplification unit 35: case

37 epoxy molding 47 cylindrical shell

55: fixed band 57: sleeve

63,65 Hook position 69 Seawater inlet

71: hook

The present invention relates to a temperature sensor assembly of a towed array sonar system (TASS), and more particularly, precisely detects the water temperature of seawater while maintaining reliable water tightness even under high pressure during towing. It's about a temperature sensor that can do it.

Electrical devices used for electronic and electronic devices, transceivers, sensors, or electrical connections are tightly mounted inside cylindrical seals such as tubes, pipes, or hoses to provide electrical connections at installation locations that require watertightness, such as ocean or river. It is well known that a sonar is known to maintain good mechanical properties such as pressure resistance, tensile strength, bending strength or kinetic properties without being affected.

Conventionally, a tow-type underwater detection device is known as a sonar detection device of this type, which is towed by a ship or the like and detects sound waves generated from the lower surface of the water. And a tail rope, and in the form of a towing sonar device having such a configuration, such as a towing underwater seismic streamer, an external hose, a hydrophone, and a spacer element. It consists of a tension wire, a bulkhead, and a hydrophone mount.

In the case of the towed underwater seismic exploration device, the sensor part is towed to the towing vessel while floating on the surface by buoyancy, and the water temperature of the sea surface is kept almost constant, and even if the water temperature changes, the seawater density changes accordingly. Therefore, the change of buoyancy intensity applied to the sensor part does not cause any trouble in the operation of the probe, so the temperature change of the seawater was not an important consideration in the operation of the probe. Therefore, in the towing underwater seismic probe, It did not require a temperature sensor.

Another type of sonar is a towing sonar (TASS). The detector is connected to the ship by cable and is towed to detect useful sound waves through the signal processing by the sensor part surrounded by the cylindrical tube body.

As such a detector, in addition to the above-mentioned type, a cylindrical tube comprising a plurality of coaxial surface layers of elastomer or plastic material, a hydrophone surrounded by the surface layer, a connector connecting the hydrophone, and a sensor part composed of a filling oil filling the surface layer. It consists of a sieve and vibration isolation module.

In the case of the towed hydrophone, the temperature sensor was mounted inside the sensor module so that the accurate operating water temperature could not be measured. Therefore, accurate seawater density at the depth at which the sensor is operated cannot be determined, so it is difficult to precisely adjust the neutral buoyancy by adjusting the density of the filling oil when filling the inside of the sensor module. This means that the object stays in equilibrium where it does not rise or sink.

Therefore, the present invention was devised to solve the disadvantage of the conventional sonar detection device as described above, the temperature sensor at the tail rope connection portion of the array stabilization module at the end of the sensor module of the towed sonar The purpose of the assembly is to more accurately measure the ambient seawater temperature during sensor operation.

In order to achieve the above object, the present invention is a towed sonar detector consisting of a sensor unit for sonar detection, a towing cable connecting the sensor unit to a towing vessel, and a tail rope bonded to the opposite side of the cable of the sensor unit. In the present invention, there is provided a towing type sonar detector comprising a temperature sensor assembly, a connector assembly for coupling the temperature sensor assembly, and a tailshell for joining the tail rope.

Hereinafter, the configuration according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, a state of use of a sonar having a temperature sensor assembly according to the present invention is shown. The sonar 1 is generally composed of a sensor unit 2, a cable 3, and a tail rope 17. In use, the sensor unit 2 floats underwater with its own buoyancy by the filling oil 18 filled therein, and is connected to the rear of the vessel by a cable 3 connected to the sensor unit 2 in front of the sea level. It is towed to detect sound and is wound by an element 7 fixed to the vessel 5. At the rear of the sensor portion, a tail rope 17 is attached on the center line.

The sensor unit is modularized into a vibration isolation module (9), a signal transmission or data link module (11), a telemetry data module (13), an acoustic module (13) and an array stabilization module (15). 19 are connected and connected respectively.

Referring to FIG. 2, the sensor unit 2 of the towed hydroacoustic detector 1 consisting of a temperature sensor assembly 21, a connector assembly 23 for coupling a temperature sensor assembly, and a tailshell 25 for tail rope joining may be used. The far end is shown in cross section.

The temperature sensor assembly 21 has a temperature sensor 27 which is a temperature sensing part, which is connected to the amplifying part 31 by a wire 29. The amplifier 31 amplifies the signal detected by the temperature sensor 27 and transmits the signal to the signal transmission module through a wire (not shown). The temperature sensor 27 and the amplification part 31 are arranged in the cavity 33 through the sea water and the stabilization module 15 of the sensor part 2 connected by the connector assembly 23 for coupling the temperature sensor assembly. It is mounted on the cylindrical temperature sensor case 35 so as to withstand the water pressure of about 100 bar, each acting on the molded with epoxy resin 37. At this time, the temperature sensor 27 is exposed through the opening 39 formed in the center of the protrusion 41 protruding in the axial direction in the center of the case 35 is in contact with the sea water. On the outer circumferential surface of the case 35, a sealing O-ring 49 is wound to prevent the filling oil 18 of the module 15 from leaking into the cavity 33, and the case 35 is a connector assembly 23 when mounted. It is contacted with the user cylindrical material, i.e., the shodder 43 of the shell 47, and is fixed by the case fixing bolt 45 penetrating the shoulder.

The connector assembly 23 for coupling the temperature sensor assembly is almost similar in structure to the outer circumferential connection structure with the other connector 19 for connecting the module with the module. The uneven part 49 which consists of recesses is laid out. The O-ring 51 is fitted in the circumferential direction immediately inside the uppermost protrusion 53 above the uneven portion 49. Cylindrical tubular body, that is, hose 20, is placed on the shell 47 in the uneven portion 49, and the hose fixing band 55 is used to press the jig for each of the concave portions of the uneven portion 49. In the crimped state, the sleeve 57 is pressed against the hose 20 on which the hose fixing band 55 is wound. At this time, the hose fixing band 55 is cut to one side is formed in a C-shape, and acts as a wedge for the outer peripheral portion of the hose in the state where both ends cut when contacted. The assembled portion of the shell 47 and the hose 20 assembled in this way is not only water-tight achieved by the pressing force of the sleeve 57, but also the sealing performance is better by additionally attaching an O-ring.

The tail shell 25 is in contact with the cylindrical lower end is overlapped with the lower end of the shell 47, the contact surface is dug two circular grooves 59 having a rectangular cross-section along the outer periphery of the lower end of the tail shell 25 Two O-rings 61 are fitted in the respective grooves 59. Similarly, the hook seat 63 is inscribed in the outer circumferential direction of the tail shell 25 above the groove 59, and the hook seat 65 is also placed in the corresponding position of the shell 47. At the upper end of the tail shell 25, that is, the right end of the drawing, a molding part 67 for connecting the tail rope is formed to connect the tail rope 17, and a plurality of seawater inflow holes are formed in the middle of the tail shell 25. (69) is installed to measure the temperature of the seawater introduced through it by the temperature sensor 27 so that it is possible to accurately know the seawater density at the current operating depth, more precisely the neutral buoyancy titration of the sensor unit (2) I can do it.

The assembly of the cylindrical bodies thus assembled, namely the shells 25 and 47 and the hose 20, is not only water-tight achieved by the pressing force of the sleeve 57 but also additionally attaches an O-ring to improve sealing performance. Both ends of the assembly part are folded with the O-ring 61 interposed therebetween, and the two hooks 71 are pressed into the respective hook seats 63 and 65 in the up and down direction of the connector assembly 23 so that the left and right shells 25, 47) It is designed to withstand the tensile load between both ends while preventing mutual separation. Particularly, the cutting surface of the hook 71 is formed to be inclined at about 30 ° to 40 ° with respect to the direction of the center axis. When the hook 71 is inserted into the hook seats 63 and 65, the coupling force is reduced due to the edge of the inclined surface. It is going to be bigger.

According to the towing type sonar detector having the temperature sensor assembly of the present invention configured as described above, even when high water pressure is applied to the sensor unit during towing or a large tensile force is applied due to fluid resistance, the parts are interconnected through the connector assembly to ensure reliable watertightness. Precise detection of sea water temperature through temperature sensor assembly with pressure-resistant structure while maintaining state and tensile strength, filling filling oil into sensor module, and it becomes a standard of module density control in titrating neutral buoyancy of sensor. The density of seawater can be determined more accurately and easily.

The present invention as described above is capable of various modifications and changes by those skilled in the art through the detailed description and drawings of the invention within the scope without departing from the spirit and scope described in the appended claims. Will do.

Claims (5)

The signal transmission module 11 converts the input analog signal into a digital signal and transmits it to the sound signal processing device of the ship 5, and is connected to the rear end of the signal transmission module 11 and receives the sound signal of the underwater target. A sensor module having an array stabilization module 15 for outputting the sound module 13 output to the signal transmission module 11 and a front end connected to the rear end of the sound module 13 to stabilize the array through external transmission of vibration. (2), a towing cable (3) connecting the vessel and the sensor unit (2), and connected to the rear end of the sensor unit (2) for attenuating vibration transmitted to the sensor unit (2) In the tow hydrophone detector (1) consisting of a tail rope (17), located at the rear end of the array stabilization module (15) to sense the temperature in the water and to transmit the temperature to the signal transmission module (11) Sensor assembly 21 and the outside of the temperature sensor assembly 21 A connector assembly 23 connecting the array stabilization module 15 to the array stabilization module 15 and surrounding the temperature stabilization module 15 with the temperature sensor assembly 21 interposed therebetween. A towed sonar detector comprising: a tail shell 25 for connecting and connecting 17; The temperature sensor assembly (21) is connected to the temperature sensor (27) for water temperature sensing and the temperature sensor (27) through a wire (29) to amplify the signal detected by the sensor (27). The cylindrical temperature sensor case having an amplification part 31, a cylindrical protrusion 41 extending in the axial direction in the center and the opening 39 for exposing the temperature sensor 27 in the center of the protrusion 41 is perforated. 35, an epoxy molding part 37 for fixing the temperature sensor 27 and the amplification part 31 in the case 35, and an outer peripheral part of the case 35 to be wound around the module 15. Filling oil (18) A towing sonar, characterized by consisting of an O-ring to prevent leakage. According to claim 1, The connector assembly 23 for the temperature sensor assembly is coupled to the temperature sensor case 35, the show rate 43 is fixed by the case fixing bolt 45 is projected radially inwardly. And a cylindrical shell 47, the cylindrical tube body 20, and the cylindrical shell, in which a concave-convex portion 49 and a sealing O-ring 51 are fitted to the cylindrical tube body 20, each of which is fitted to the cylindrical tube body 20. 47 is formed of a sleeve (57) pressed against the cylindrical tube body 20 with a fixing band (55) wound around the overlapped portion, and a molding portion (58) for engaging the tension member (60). Towed sonar characterized in that it is. The method of claim 1, wherein the tail shell 25 has two circular grooves 59 each having a square cross section in a circumferential direction on the abutment surface of the cylindrical lower end portion overlapped with the lower end portion of the shell 47. And two O-rings 61 are fitted in the respective grooves 59, and a plurality of circular seawater inlets 69 are drilled at positions where the cylindrical lower end ends and the conical upper end starts. A tug-shaped sonar detector, characterized in that the end is provided with a molding portion 67 for joining the tail rope (17). 5. The connector assembly (23) according to any one of claims 3 and 4, wherein the connector assembly (23) is squared on the outer circumferential surface of each of the lower end of the tail shell (25) and the lower end of the cylindrical shell (47). A towed sonar characterized in that it is connected by a pair of semi-circular hooks (71) that are fitted by pressing to (65).