KR0126005Y1 - Towed array sonar system with tension sensor - Google Patents

Abstract

The present invention is a sensor unit for sonar detection consisting of a vibration isolation module, a signal transmission module, an acoustic module and an array stabilization module, a towing cable connecting the sensor unit to a towing vessel, a tail bonded to the opposite side of the cable of the sensor unit The vibration isolation module has a cylindrical tube body, a connector assembly fitted to both ends of the cylindrical tube body to connect with other adjacent modules and cables, and both ends are joined to the connector assembly and surrounded by the cylindrical tube body. A tension rope filled with a flow path and extending in the longitudinal direction of the cylindrical tube body, a connector assembly bonded in the middle of the tension rope, a spacer interposed between the connector assembly and the connector assembly, the tension rope and the cable side connector Tension sensor unit provided between, the vibration gap A towed sonar detection device comprising a horizontal accelerometer and a longitudinal accelerometer located respectively inside the cable opposite connector of the module and immediately inside the cable side connector, and a connector provided between the longitudinal accelerometer and the tension sensor unit. The sensor unit is a tension sensor, a connector which is screwed to the screw projections extending from the center to the left and right sides of the tension sensor, a sensor wire extending at one end of the screw projection, the molding portion of the rope holder bolted to the connector and It is composed of a tensioning rope which extends in the longitudinal direction of the cylindrical tube body by being molded and joined to the molding part of the connector cover or the vibration damping unit connector secured by the anchor plate screwed to the cable-side connector. It relates to a towing type sonar detection device.

Description

Towing Sonar Detector with Tension Sensor

1 is a view schematically showing a state of use of the sonar detection apparatus embodying the present invention.

Figure 2 is a schematic front cross-sectional view illustrating a vibration isolating module of the sonar detection apparatus having a tension sensor according to an embodiment of the present invention.

3 is a cross-sectional view taken along the line A-A of FIG.

Figure 4 is a partial cross-sectional view of the vibration isolation module of the sonar detection device showing a tension sensor of the present invention.

* Explanation of symbols for main parts of the drawings

1: sonar 2: sensor

3: cable 7: winch

9: vibration isolation module 11: signal transmission module

13: Sound Module 15: Array Stabilization Module

17: tail rope 19, 21, 24: connector assembly

20: cylindrical tube body 22: vibration damping unit

26, 28, 48: tension rope 30: spacer

31: tension sensor 32: tension sensor

34,36: accelerometer 38: connector

46: rope holder 49, 50, 51: molding part

The present invention relates to a tension sensor part of the vibration isolation module of the towed sonar detection device, and more specifically, by measuring the tensile force generated by the fluid resistance according to the water pressure and towing speed during the towing of the sensor part of the sonar detection device The tension sensor unit of the vibration isolation module for adjusting the towing speed to an appropriate value.

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.

Known conventionally known as the sonar detection device of this type is a tow-type underwater detection device which is towed by a ship or the like and detects the sound waves generated under the surface of the water, such a towing type sonar detector is generally a towing cable, sensor unit and It is composed of a tail rope, and in the form of a towed sonar having such a configuration, for example, an external hose, a hydrophone, a spacer element, a tension, such as a towed underwater seismic streamer. Some are composed of a wire, bulkhead, and hydrophone mount.

Since the underwater seismic probe is made of a single layer of polyvinyl chloride or polyurethane, the connection part is easily broken when a high tension is applied to the body due to seawater resistance. Although reinforcing tension wires were arranged over the entire length of the body, this arrangement prevented the isolation of the longitudinal waves consisting of the kinetic components propagating directly from the ship and the vibrational components due to the vortices generated around the cable in each section unit. .

Therefore, in this apparatus, mechanical noise generated throughout the sensor portion due to vibration cannot be effectively suppressed, and accurate sound detection by the sensor portion is difficult. In addition, there was a difficulty in maintenance, such as repair when a partial breakage or failure occurred.

Another type of sonar is a towed array sonar system. The detector is connected to the ship by a cable and is towed to detect useful sound waves through the signal processing by the sensor part surrounded by a 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 sonar, except for the vibration isolation modules located at the front and the rear, the whole sensor part is arranged in a line with the hydrophones surrounded by a plurality of surface layers and maintained at regular intervals, so that the center line is relatively thin. Since they are repeatedly connected to each other, there is no problem in electrical connection and watertightness or fluid resistance. In addition, as the material of the surface layer, the damping characteristic is maintained relatively good and has high rigidity, so the noise reduction effect due to mechanical damping is excellent, and the bulge wave caused by the turbulent boundary layer is not generated, but urethane or elastomer, etc. Due to the fact that it is composed of a plurality of surface layers composed of a plurality of surface layers, the detection of the acoustic signal by the acoustic sensor enclosed by the multiple layers is not sufficient, and it does not have a separate tension member, so the connection part breaks when high tensile force is applied Had the disadvantages of being.

The present invention was devised to solve the problems of the conventional tow-type sonar detection device as mentioned above, and the respective parts of the sonar module is modularized and fitted to both ends of the cylindrical tube body of each module. By connecting by the assembly, the tension member extending through the whole device is divided into the module size and the vibration generated around the sensor part due to the fluid resistance at the towing as well as the longitudinal vibration transmitted from the towing cable. Due to the easy measurement of the tensile force applied to the vibration isolating module at the tip of the sensor at every desired point, mechanical noise caused by vibration in the hydrophone of the sensor module's acoustic module is prevented from capturing false signals or capturing accurate sound signals from the sound source To find the proper operating speed of the sensor To provide a sonar device having force sensor unit will have its purpose.

In order to achieve the above object, the present invention provides a sensor unit for sonar detection consisting of a vibration isolation module, a signal transmission module, an acoustic module, and an array stabilization module, a towing cable connecting the sensor unit to a towing vessel, and a cable of the sensor unit. Consists of a tail rope bonded to the opposite side, the vibration isolation module is a cylindrical tube body, a connector assembly fitted to both ends of the cylindrical tube body and connected to other adjacent modules and cables, both ends are bonded to the connector assembly Surrounded by the cylindrical tube body and filled with a filling oil, a tension rope extending in the longitudinal direction of the cylindrical tube body, a connector assembly joined to the middle of the tension rope, a plurality of spacers interposed between the connector assembly and the connector assembly, Installed between the tension rope and the cable side connector A tension sensor unit comprising a tension accelerometer, a transverse accelerometer and a longitudinal accelerometer located respectively inside the cable-side connector and the cable-side connector of the vibration isolation module, and a connector installed between the longitudinal accelerometer and the tension sensor unit. In the sound wave detection device, the tension sensor unit is connected to the tension sensor, the screw threaded portion extending from the center to the left and right sides of the tension sensor, the sensor wire extending at one end of the screw protrusion, bolted to the connector Molded in the molding part of the rope holder and the molding part of the connector cover fixed by the anchor plate screwed to the towing cable-side connector, respectively, and extending in the longitudinal direction of the cylindrical tube body. Towing sonar device consisting of tension rope Would you want the ball.

Therefore, according to the present invention configured as described above, it is possible to easily measure the high tensile force applied to the sensor part of the sonar device during operation or escape of the sonar device, and when the sensor part is operated by a tension rope connected to both ends of the sensor part. Alternatively, the tension sensor can be safely protected from the bending force applied to the sensor body when it is stored in the winch, and a line of tension ropes are connected in a state aligned with the sensor axis center axis even if the sensor unit fluctuates during operation. Therefore, the moment during tension can be minimized to protect the tension sensor from mating.

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

Figure 1 shows the state of use of the towed sonar 1 according to the present invention. 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 a winch 7 fixed to the vessel 5. At the rear of the sensor portion, a tail rope 17 is attached on the concentric line.

The sensor unit 2 of the sonar detector shown in FIG. 1 includes a vibration isolation module 9, a signal transmission or data link module 11, an acoustic module 13 and an acoustic module 13. It is modularized into an array stabilization module 15 and connected and connected by connectors 19 and 21, respectively.

2 and 3, there is shown a vibration isolating module 9 of this sensor part 2, which is enclosed by a cylindrical tubular body 20 (hose) made of polyurethane and has a linear arrangement as a whole. The connectors 19 and 21 are connected in a line to form a connector. The vibration damping unit 22 is built in the state in which the filling oil 18 is filled in the hose 20.

The vibration damping unit 22 is divided into two unit units in which two kevlar ropes 26 and lateral nylon ropes 28 and horizontal nylon ropes 28 are divided in consideration of difficulties in assembly. It extends by connecting to the connector (24) in the middle of the unit. In the middle of these ropes is fitted a spacer 30 to hold the wire passing through the hose 20 and to prevent the hose 20 from bending when the entire sensor portion 2 is wound around the winch 7. The tension sensor 32 for measuring the tensile force acting is attached to the cable 3 and the sensor part 2 connection site where the tensile force acts the greatest when the sensor unit 2 is towed.

Immediately inside the connector 19 on the opposite side of the cable 3 of the vibration isolating module 9 and the connector 21 on the side of the cable 3, a horizontal accelerometer 34 for measuring the horizontal acceleration of the sensor unit 2, A longitudinal accelerometer 36 for measuring downward acceleration is located, and a connector 38 is provided between the longitudinal accelerometer 36 and the tension sensor 32.

Referring to Figure 4 is a tension sensor portion 31 of the present invention is shown in a partial cross-sectional state.

The tension sensor part 31 extends in the axial direction of the hose in the state where the connector 21 to which the towing cable 3 is connected is filled with the filling oil 18 inside the cylindrical tube body, that is, the hose 20, fitted at one end. . At the center of the tension sensor 31 is a tension sensor 32 for measuring the tensile force generated when the sensor unit 2 of the sonar detection device 1 is towed. Screw projections 44 extending from the left and right sides around the tension sensor 32 are screwed to the connector 38. Inside the connector 38 extends a sensor wire 54 extending from one end of the screw projection 44 and used to transmit the measured tensile force. Both ends of the connector 38 are bolted to a rope hold 46 forming the molding portion 50 for joining the tension rope 48. The tension rope 48 extending from the molding portion 50 of the rope holder 46 is connected to the connector cover 23 which is fixed by the anchor plate 52 screwed to the connector 21 on the towing cable 3. The molding portions 51 or the vibration damping unit 22 side molding portions 49 are respectively bonded to each other.

Therefore, according to the present invention configured as described above, it is possible to easily measure the high tensile force applied to the sensor unit 2 of the sonar detection device during operation or escape of the sonar device 1, The bonded tension rope 48 not only protects the tension sensor 32 from the bending force applied to the body of the sensor part 2 when the sensor part 2 is operated or stored in the winch 7, but also the sensor. Even if the part 2 oscillates during operation, a row of tension ropes 48 are connected in a state aligned with the sensor part 2 center axis, so that the moment during tension is minimized so that the tension sensor 32 is prevented from mating. You can protect it.

The present invention as described above is a variety of 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 utility model registration claims This will be possible.

Claims (1)

The sensor unit (2) in the sonar detection sensor unit 2, the towing vessel (5) consisting of a vibration isolation module (9), a signal transmission module (11), an acoustic module (13) and an array stabilization module (15). It is composed of a towing cable (3) for connecting the tail rope 17 is bonded to the opposite side of the cable (3) of the sensor unit 2, the vibration isolation module (9) is a cylindrical tube body (20) ), Connector assemblies 19 and 21 that are fitted at both ends of the cylindrical tube body 20 and connect with other adjacent modules 11 and cables 3, and both ends are joined to the connector assemblies 19 and 21. Surrounded by the cylindrical tube body 20 and filled with the filling oil 18, the tension rope (26, 28) extending in the longitudinal direction of the cylindrical tube body 20, the tension rope (26, 28) A connector assembly 24 bonded in the middle, a plurality of spacers 30 interposed between the connector assembly 24 and the connector assemblies 19 and 21, and the in The tension sensor unit 31 installed between the elbows 26 and 28 and the connector 21 on the cable 3 side, the connector 19 opposite the cable 3 of the vibration isolation module 9 and the cable. (3) consists of a transverse accelerometer 34 and a longitudinal accelerometer 36 located directly inside the connector 21, and a connector 38 provided between the longitudinal accelerometer 36 and the tension sensor unit 31; In the towing type sonar detection device 1, wherein the tension sensor unit 31 is screwed to the tension sensor 32, the screw projection 44 extending from the center of the tension sensor 32 to both sides Connector 38, a sensor wire 54 extending at one end of the screw projection 44, a molding part 50 of the rope holder 46 bolted to the connector 38 and a towing cable 3. Molding part 51 or vibration damping unit 22 side of connector cover 23 fixed by anchor plate 52 screwed to connector 21 A tug-shaped sonar detection device, characterized in that it is composed of a tension rope (48) which is molded in each of the molding portion (49) and extends in the longitudinal direction of the cylindrical tube body (20).